Acessibilidade / Reportar erro
Original Article • Braz J Oral Sci. 21 • 2022 • https://doi.org/10.20396/bjos.v21i00.8666351   copy

Reporting characteristics of systematic review abstracts published in the proceedings of the SBPqO meeting

Authorship SCIMAGO INSTITUTIONS RANKINGS

Abstract

Aim

This study aimed to assess the reporting characteristics of systematic review abstracts published in the proceedings of the Sociedade Brasileira de Pesquisa Odontológica (SBPqO) meeting.

Methods

We selected abstracts published in the SBPqO meeting proceedings of 2019 and 2020, mentioning that a systematic review was conducted in the title, objective or methods sections. One researcher performed the screening and the data extraction after a pilot test training. The following data were extracted: affiliation of the primary author, dental specialization, the term “systematic review” mentioned in the title, reporting of the objective, reporting of eligibility criteria, reporting of information sources, reporting of the number of included studies and if a meta-analysis was performed. A descriptive analysis of the data was performed with data summarized as frequencies.

Results

We included 235 abstracts. A total of 20 studies were from the Universidade de Uberlândia (8.5%), and the main specialization was Restorative and Esthetic Dentistry, with 47 studies (20%). Most of the studies mentioned the term “systematic review” in the title (n=219; 93.2%) and reported the objective (n=231; 98.3%). A great majority of studies did not report the eligibility criteria (n=97; 41.3%) or it was classified as unclear (n=96; 40.8%). The great majority of studies only reported the databases searched (n=103; 43.8%) or databases and date of search (n=74; 31.5%). Most of the studies reported the number of included studies (n=204; 86.8%).

Conclusion

Based on this study, the reporting characteristics of systematic review abstracts published in the proceedings of the SBPqO meeting are satisfactory. However, there is room for improvement.

Dental research; Research report; Systematic reviews of topic

Introduction

A systematic review is an important tool in health, and it is used for identifying, appraising, and integrating the results of a specific field11. Cook DJ, Mulrow CD, Haynes RB. Systematic reviews: synthesis of best evidence for clinical decisions. Ann. Intern. Med. 1997;126(5):376-80. doi: 10.7326/0003-4819-126-5-199703010-00006.,22. Murad MH, Montori VM. Synthesizing evidence: shifting the focus from individual studies to the body of evidence. 2013; 309(21):2217-8. doi: 10.1001/jama.2013.5616.. The number of systematic reviews in dentistry has been increasing in recent years, and the reporting quality is highly variable33. Bassani R, Pereira GKR, Page MJ, Tricco AC, Moher D, Sarkis-Onofre R. Systematic reviews in dentistry: current status, epidemiological and reporting characteristics. J Dent. 2019;82:71-84. doi: 10.1016/j.jdent.2019.01.014.

4. Saltaji H, Cummings GG, Armijo-Olivo S, Major MP, Amin M, Major PW, et al. A descriptive analysis of oral health systematic reviews published 1991-2012: cross sectional study. PLoS One. 2013 Sep;8(9):e74545. doi: 10.1371/journal.pone.0074545.-55. T O Lemes L, Dotto L, Agostini BA, Pereira GKR, Sarkis-Onofre R. How are meta-analyses being conducted and reported in dentistry?: a meta-research study. Braz J Oral Sci. 2021;20:e211701. doi: 10.20396/bjos.v20i00.8661701..

Much health research is presented at conferences and is publicly available as abstracts in the proceedings. The reporting quality of these abstracts is important because systematic reviewers will in some situations decide to include a study (or not) based on the conference abstract because the full article is not available. The reporting quality of conference abstracts was assessed in different topics in health, including sports injury prevention, oncology, urology, psychiatry, surgery, and oral health66. Hopewell S, Clarke M, Askie L. Reporting of trials presented in conference abstracts needs to be improved. J Clin Epidemiol. 2006 Jul;59(7):681-4. doi: 10.1016/j.jclinepi.2005.09.016.

7. Duan Y, Li J, Ai C, Chen Y, Chen P, Zhang M, et al. Quality of trials reported as conference abstracts in China: how well are they reported? Int J Technol Assess Health Care. 2009 Oct;25(4):479-84. doi: 10.1017/S0266462309990365.

8. Turpen RM, Fesperman SF, Smith WA, Vieweg J, Dahm P. Reporting quality and information consistency of randomized, controlled trials presented as abstracts at the American Urological Association annual meetings. J Urol. 2010 Jul;184(1):249-53. doi: 10.1016/j.juro.2010.03.045.

9. Yoon U, Knobloch K. Assessment of reporting quality of conference abstracts in sports injury prevention according to CONSORT and STROBE criteria and their subsequent publication rate as full papers. BMC Med Res Methodol. 2012 Apr;12:47. doi: 10.1186/1471-2288-12-47.

10. Yoon U, Knobloch K. Quality of reporting in sports injury prevention abstracts according to the CONSORT and STROBE criteria: an analysis of the World Congress of Sports Injury Prevention in 2005 and 2008. Br J Sports Med. 2012 Mar;46(3):202-6. doi: 10.1136/bjsm.2008.053876.

11. Speich B, Mc Cord KA, Agarwal A, Gloy V, Gryaznov D, Moffa G, et al. Reporting Quality of Journal Abstracts for Surgical Randomized Controlled Trials Before and After the Implementation of the CONSORT Extension for Abstracts. World J Surg. 2019 Jun;43(10):2371-8. doi: 10.1007/s00268-019-05064-1.

12. Narayan VM, Cone EB, Smith D, Scales CD Jr, Dahm P. Improved reporting of randomized controlled trials in the urologic literature. Eur Urol. 2016 Dec;70(6):1044-9. doi: 10.1016/j.eururo.2016.07.042.-1313. Kumar S, Mohammad H, Vora H, Kar K. Reporting quality of randomized controlled trials of periodontal diseases in journal abstracts-a cross-sectional survey and bibliometric analysis. J Evid Based Dent Pract. 2018 Jun;18(2):130-141.e22. doi: 10.1016/j.jebdp.2017.08.005.. However, there are no studies assessing abstracts of systematic reviews in dentistry published in the proceedings of conferences.

The Sociedade Brasileira de Pesquisa Odontológica (SBPqO) meeting is the most important conference in oral health research in Brazil, and it is the Brazilian division of the International Association for Dental Research. Since 2019, the SBPqO meeting has presented a special section dedicated to systematic review presentation, and all studies are published in the proceedings of the SBPqO meeting1414. Sociedade Brasileira de Pesquisa Odontológica. Proceedings of the 36th SBPqO Annual Meeting. Braz Oral Res. 2019;33(suppl 2).,1515. Sociedade Brasileira de Pesquisa Odontológica. Proceedings of the 37th SBPqO Virtual Annual Meeting. Braz Oral Res. 2020;34(suppl 2).. Therefore, this study aimed to assess the reporting characteristics of systematic review abstracts published in the proceedings of the SBPqO meeting.

Material and Methods

Eligibility criteria and search

We included abstracts mentioning that a systematic review was conducted in the title, objective, or methods sections, regardless of the dental specialization discussed. We excluded studies which cited performing scoping reviews, overviews or assessing reporting quality of studies, or other methodological aspects characterizing the study as a meta-research.

We performed a search in the proceedings of 20191414. Sociedade Brasileira de Pesquisa Odontológica. Proceedings of the 36th SBPqO Annual Meeting. Braz Oral Res. 2019;33(suppl 2). and 20201515. Sociedade Brasileira de Pesquisa Odontológica. Proceedings of the 37th SBPqO Virtual Annual Meeting. Braz Oral Res. 2020;34(suppl 2). to identify abstracts based on the eligibility criteria cited above, examining only the Systematic Reviews section.

Screening

Two researchers initially performed a pilot screening test discussing the inclusion criteria using the 2018 proceedings of the SBPqO meeting. One of the researchers subsequently identified studies by reviewing the titles and abstracts through the pdf versions of the 2019 and 2020 proceedings available at www.sbpqo.org.br. In case of any doubts, the opinion of a second researcher was requested.

Data extraction

We created a standardized form using the Excel program (Microsoft Excel 2020). We initially performed a pilot data extraction through a discussion between two reviewers to consider all data for extraction. Data from each systematic review were subsequently extracted by one reviewer. The following data were collected: affiliation of primary author, dental specialization (Public Health, Endodontics, Oral and Maxillofacial Pathology/stomatology, Radiology, Oral and Maxillofacial Surgery, Restorative and Esthetic Dentistry, Pediatric Dentistry, Periodontics, Orthodontics/Orthopedics, Implantology, and Others), the term “systematic review” mentioned in the title (Yes or No), reporting of the objective (Yes or No), reporting of eligibility criteria (Only inclusion criteria, Only exclusion criteria, Inclusion and exclusion criteria, Unclear, Not reported), reporting of information sources (Only databases, Only date of search, Databases and date of search, Unclear, Not reported), reporting of the number of included studies (Yes, No, Unclear) and if a meta-analysis was performed (Yes or No).

Data analysis

A descriptive analysis of the data was performed with the data summarized as frequencies using the Excel program (Microsoft Excel 2020).

Results

We identified 262 abstracts published in the proceedings of the SBPqO meeting and classified as “systematic review”. We included 235 abstracts after the screening based on the eligibility criteria (see Supplemental Material Supplemental material List of numbers of included abstracts (2019). 1-RS001 42-RS045 83-RS097 2-RS002 43-RS046 84-RS098 3-RS003 44-RS048 85-RS099 4-RS004 45-RS049 86-RS100 5-RS005 46-RS050 87-RS101 6-RS006 47-RS051 88-RS102 7-RS007 48-RS052 89-RS103 8-RS008 49-RS054 90-RS104 9-RS010 50-RS055 91-RS105 10-RS011 51-RS057 92-RS106 11-RS012 52-RS058 93-RS107 12-RS013 53-RS059 94-RS109 13-RS014 54-RS060 95-RS110 14-RS016 55-RS061 96-RS111 15-RS017 56-RS062 97-RS113 16-RS018 57-RS064 98-RS114 17-RS019 58-RS065 99-RS115 18-RS020 59-RS068 100-RS116 19-RS021 60-RS069 101-RS117 20-RS022 61-RS070 102-RS118 21-RS023 62-RS071 103-RS119 22-RS024 63-RS072 104-RS121 23-RS025 64-RS073 105-RS122 24-RS026 65-RS075 106-RS123 25-RS027 66-RS076 107-RS124 26-RS028 67-RS077 108-RS126 27-RS029 68-RS078 109-RS128 28-RS030 69-RS079 110-RS129 29-RS031 70-RS082 111-RS130 30-RS032 71-RS083 112-RS131 31-RS033 72-RS084 113-RS132 32-RS034 73-RS085 114-RS134 33-RS035 74-RS086 115-RS135 34-RS036 75-RS087 116-RS136 35-RS037 76-RS088 117-RS137 36-RS038 77-RS090 118-RS138 37-RS040 78-RS091 119-RS139 38-RS041 79-RS092 120-RS140 39-RS042 80-RS093 121-RS142 40-RS043 81-RS094 41-RS044 82-RS096 List of numbers of included abstracts (2020). 122-RS001 160-RS041 198-RS081 123-RS002 161-RS043 199-RS082 124-RS003 162-RS044 200-RS083 125-RS004 163-RS045 201-RS084 126-RS005 164-RS046 202-RS085 127-RS006 165-RS048 203-RS086 128-RS007 166-RS049 204-RS087 129-RS008 167-RS050 205-RS088 130-RS009 168-RS051 206-RS089 131-RS010 169-RS052 207-RS090 132-RS012 170-RS053 208-RS091 133-RS013 171-RS054 209-RS092 134-RS014 172-RS055 210-RS093 135-RS015 173-RS056 211-RS094 136-RS016 174-RS057 212-RS095 137-RS017 175-RS058 213-RS096 138-RS018 176-RS059 214-RS097 139-RS019 177-RS060 215-RS098 140-RS020 178-RS061 216-RS099 141-RS021 179-RS062 217-RS100 142-RS023 180-RS063 218-RS101 143-RS024 181-RS064 219-RS102 144-RS025 182-RS065 220-RS103 145-RS026 183-RS066 221-RS104 146-RS027 184-RS067 222-RS105 147-RS028 185-RS068 223-RS107 148-RS029 186-RS069 224-RS108 149-RS030 187-RS070 225-RS109 150-RS031 188-RS071 226-RS111 151-RS032 189-RS072 227-RS112 152-RS033 190-RS073 228-RS113 153-RS034 191-RS074 229-RS114 154-RS035 192-RS075 230-RS115 155-RS036 193-RS076 231-RS116 156-RS037 194-RS077 232-RS117 157-RS038 195-RS078 233-RS118 158-RS039 196-RS079 234-RS119 159-RS040 197-RS080 235-RS120 Characteristics of each abstract included. Author/Year Systematic review mentioned in the title Objective reported Eligibility criteria reported Reporting of information sources Number of included studies Meta-analysis conducted Nunes et al., 2019 Yes Yes Not reported Only databases Yes Yes Reis et al., 2019 Yes Yes Only inclusion Only databases Yes No Frazão et al., 2019 Yes Yes Only inclusion Only databases Yes Yes Granja et al., 2019 Yes Yes Unclear Unclear Yes Yes Lacerda-Santos et al., 2019 Yes Yes Unclear Unclear Yes Yes Paulo et al., 2019 Yes Yes Not reported Only databases Yes No Pereira et al., 2019 Yes Yes Not reported Only databases Yes Yes Cetira-Filho Yes Yes Unclear Only databases Unclear Yes Novais et al., 2019 Yes Yes Unclear Unclear Yes Yes Amaral et al., 2019 Yes Yes Not reported Only databases Yes No Thuller et al., 2019 Yes Yes Only exclusion Only databases Yes Yes Falcão et al., 2019 Yes Yes Unclear Both Yes Yes Barbosa et al., 2019 Yes Yes Only inclusion Only databases Yes No Stringhini-Junior et al., 2019 Yes Yes Unclear Both Yes Yes Moraes et al., 2019 Yes Yes Only inclusion Both Yes Yes Alves et al., 2019 Yes Yes Only inclusion Both Yes Yes Basso et al., 2019 Yes Yes Unclear Only databases Yes Yes Wembier et al., 2019 Yes Yes Unclear Only databases Yes Yes Silva et al., 2019 Yes Yes Unclear Both Yes Yes Bronzato et al., 2019 Yes Yes Unclear Only databases Yes Yes Albuquerque et al., 2019 Yes Yes Not reported Both Yes No Castro et al., 2019 Yes Yes Unclear Only databases Yes Yes Pinto et al., 2019 Yes Yes Unclear Both Yes Yes Scarsi et al., 2019 Yes Yes Only inclusion Only databases Yes Yes Campos et al., 2019 Yes Yes Unclear Only databases Yes Yes Spinola et al., 2019 Yes Yes Not reported Only databases Yes No Oliveira et al., 2019 Yes Yes Not reported Only databases Yes Yes Terto et al., 2019 Yes Yes Only exclusion Both Yes Yes Castilho et al., 2019 Yes Yes Unclear Only databases Yes Yes Lima et al., 2019 Yes Yes Unclear Unclear No Yes Andrade et al., 2019 Yes Yes Unclear Only databases Yes Yes Baroni et al., 2019 Yes Yes Unclear Only databases Yes No Rende et al., 2019 No Yes Unclear Unclear Yes Yes Guimaraes et al., 2019 No Yes Not reported Only databases Yes Yes Fontes et al., 2019 Yes Yes Unclear Only databases Yes No Dantas et al., 2019 Yes Yes Only inclusion Both Yes Yes Milani et al., 2019 Yes Yes Unclear Only databases Unclear Yes Bedran et al., 2019 Yes Yes Not reported Only databases Yes Yes Cruz et al., 2019 Yes Yes Not reported Unclear Yes Yes Ribeiro-Lages et al., 2019 Yes Yes Not reported Only databases Yes Yes Mocchelini et al., 2019 Yes Yes Not reported Only databases Yes Yes Masson et al., 2019 Yes Yes Unclear Both Yes Yes Duarte et al., 2019 Yes Yes Not reported Only databases Yes Yes Seabra et al., 2019 Yes Yes Not reported Both Yes Yes Nadelman et al., 2019 Yes Yes Only inclusion Only databases Yes No Messignan et al., 2019 Yes Yes Not reported Only databases Yes Yes Dantas et al., 2019 Yes Yes Not reported Unclear No No Gonçalves et al., 2019 No Yes Not reported Only databases Yes Yes Oliveira et al., 2019 Yes Yes Both Both Yes No Bellini-Pereira et al., 2019 Yes Yes Only inclusion Both Yes Yes Prado et al., 2019 Yes Yes Only inclusion Only databases Yes Yes Pinheiro et al., 2019 Yes Yes Unclear Only databases Yes No Cardoso et al., 2019 Yes Yes Not reported Both Yes Yes Farias Junior et al.,2019 Yes Yes Unclear Both Yes No Silva et al., 2019 Yes Yes Only inclusion Both Yes No Silveira et al;. 2019 Yes Yes Unclear Unclear Yes No Nascimento et al., 2019 Yes Yes Unclear Both Yes No Neves et al., 2019 Yes Yes Unclear Not reported Unclear Yes Nunes et al., 2019 Yes Yes Unclear Only databases Unclear No Lins et al., 2019 No Yes Not reported Only databases Yes Yes Farias et al., 2019 Yes Yes Unclear Only databases Yes No Dietrich et al., 2019 Yes Yes Unclear Both Yes No Polmann et al., 2019 Yes Yes Not reported Only databases Yes No Maran et al., 2019 Yes Yes Not reported Only databases Yes Yes Lima et al., 2019 No Yes Unclear Both Yes No Martini et al., 2019 Yes Yes Not reported Only databases Yes No Antonio et al., 2019 Yes Yes Only inclusion Only databases Yes No Né et al., 2019 Yes Yes Unclear Unclear Yes No Fidalgo et al., 2019 Yes Yes Unclear Only databases Yes No Nascimento et al., 2019 No Yes Not reported Only databases Yes Yes Bacchin et al., 2019 Yes Yes Not reported Only databases Yes No Roithmann et al., 2019 Yes Yes Unclear Both Yes Yes Maroli et al., 2019 Yes Yes Both Only databases Yes No Carneiro-Campos et al., 2019 Yes Yes Only inclusion Both Unclear Yes Brunetto et al., 2019 Yes Yes Unclear Both Yes Yes Minatel et al., 2019 Yes Yes Not reported Only databases Yes No Lemos et al., 2019 Yes Yes Not reported Unclear Yes Yes Silva et al., 2019 Yes Yes Unclear Both Yes Yes Barcelos et al.,2019 Yes Yes Only exclusion Both Yes No Gomez et al., 2019 Yes Yes Not reported Both Yes No Magalhães et al., 2019 Yes Yes Not reported Only databases Yes No Sarmento et al., 2019 Yes Yes Unclear Both Yes No Barbosa et al., 2019 Yes Yes Not reported Unclear Yes Yes Lhano et al., 2019 Yes Yes Unclear Only databases Unclear Yes Oliveira et al., 2019 Yes Yes Not reported Both Yes Yes Nascimento et al., 2019 No Yes Not reported Only databases Yes Yes Oliveira et al., 2019 Yes Yes Unclear Only databases Yes Yes Silva et al., 2019 Yes Yes Both Only databases Yes Yes Dutra et al., 2019 Yes Yes Not reported Only databases Unclear Yes Macedo-Filho et al., 2019 Yes Yes Unclear Both Yes Yes Oliveira et al., 2019 Yes Yes Not reported Unclear Yes Yes Kammer et al.,2019 Yes Yes Not reported Unclear Yes Yes Berretta et al., 2019 Yes Yes Only inclusion Unclear Yes No Diniz et al., 2019 Yes Yes Unclear Unclear Yes No Reis et al., 2019 Yes Yes Unclear Unclear Yes No Silveira et al;. 2019 Yes Yes Only inclusion Unclear Yes Yes Martins et al., 2019 Yes Yes Not reported Unclear Yes Yes Jerônimo et al., 2019 Yes Yes Unclear Unclear Yes Yes Rosa et al., 2019 Yes Yes Unclear Both Yes Yes Lago et al., 2019 Yes Yes Unclear Both Yes Yes Haas et al., 2019 No Unclear Unclear Only databases Yes Yes Melo et al., 2019 Yes Yes Unclear Unclear Yes No Lavôr et al., 2019 Yes Yes Unclear Unclear Yes No Oliveira et al., 2019 Yes Yes Unclear Both Yes No Paulo et al., 2019 Yes Yes Unclear Unclear Yes Yes Lisboa et al., 2019 Yes Yes Not reported Only databases Yes No Martins et al., 2019 Yes Yes Only inclusion Only databases Yes No Campos et al., 2019 Yes Yes Not reported Only databases No No Rolim et al., 2019 Yes Yes Unclear Both Yes Yes Silva et al., 2019 Yes Yes Unclear Only databases Yes Yes Campos et al., 2019 Yes Yes Not reported Unclear Unclear No Souza et al., 2019 Yes Yes Unclear Only databases Yes Yes Miranda et al., 2019 Yes Yes Not reported Only databases Yes Yes Raymundo et al., 2019 Yes Yes Not reported Only databases No Yes Caldas et al., 2019 Yes Yes Not reported Both Yes No Miranda et al., 2019 Yes Yes Unclear Only databases Yes No Alvarenga et al., 2019 Yes Yes Not reported Unclear Yes Yes Santos et al., 2019 No Yes Not reported Only databases Yes No Rendohl et al., 2019 Yes Yes Only inclusion Both No Yes Limírio et al., 2019 Yes Yes Not reported Both Yes Yes Borges et al., 2019 Yes Yes Not reported Not reported Yes Yes Reis et al., 2020 Yes Yes Unclear Only databases Yes No Gonçalves et al., 2020 Yes Yes Unclear Both Yes Yes Vidigal et al., 2020 Yes Yes Not reported Unclear Yes Yes Leal et al., 2020 Yes Yes Not reported Both Yes No Silva et al., 2020 No Yes Unclear Both Yes No Rosatto et al., 2020 Yes Yes Not reported Unclear Yes No Sarmento et al., 2020 Yes Yes Not reported Unclear Yes No Matos et al., 2020 Yes Yes Not reported Unclear Yes No Gabriel et al., 2020 Yes Yes Not reported Unclear Yes Yes Dias-Junior et al., 2020 Yes Yes Unclear Only databases Yes Yes Nóbrega et al., 2020 Yes Yes Unclear Only databases Unclear Yes Sponchiado-Júnior et al., 2020 Yes Yes Unclear Only databases Yes No Martins et al., 2020 Yes Yes Unclear Only databases Yes No Pirovani et al., 2020 Yes Yes Unclear Both Yes No Feitosa et al., 2020 Yes Yes Only inclusion Only databases Yes No Salomão et al., 2020 Yes Yes Only inclusion Only databases Yes Yes Kwiatkowski et al., 2020 Yes Yes Unclear Both Yes No Lopes et al., 2020 Yes Yes Unclear Only databases Yes No Soares et al., 2020 Yes Yes Not reported Only databases Yes No Né et al., 2020 Yes Yes Unclear Only databases Yes Yes Carvalho et al., 2020 Yes Yes Unclear Only databases Yes No Araujo et al., 2020 Yes Yes Not reported Only databases Yes No Silver et al., 2020 Yes Yes Only inclusion Only databases Yes Yes Schoeffel et al., 2020 Yes Yes Only inclusion Unclear Yes Yes Muknickas et al., 2020 Yes Yes Unclear Only databases Unclear No Rezende et al., 2020 Yes Yes Unclear Both Yes No Oliveira et al., 2020 Yes Yes Only inclusion Both Yes Yes Cruz et al., 2020 Yes Yes Not reported Unclear Yes Yes Oliveira et al., 2020 Yes Yes Both Both Yes No Martins et al., 2020 Yes Yes Not reported Only databases Yes Yes Mocchelini et al., 2020 Yes Yes Not reported Only databases Yes Yes Miyahira et al., 2020 Yes Yes Unclear Only databases Yes Yes Machado et al., 2020 Yes Yes Only inclusion Both Yes No Miranda et al., 2020 Yes Yes Only inclusion Both Yes No Soares et al., 2020 Yes Yes Unclear Both Yes No Pintor et al., 2020 Yes Yes Only inclusion Both Yes No Camatta et al., 2020 Yes Yes Unclear Only databases No Yes Sanglard et al., 2020 Yes Yes Not reported Both Yes No Haibara et al., 2020 Yes Yes Unclear Both Yes No Fontes et al., 2020 Yes Yes Unclear Only databases Yes No Latieri et al., 2020 Yes Yes Unclear Both Yes No Bonzanini et al., 2020 Yes Yes Not reported Both Yes Yes Soares et al., 2020 Yes Yes Not reported Only databases Yes Yes Neves et al., 2020 Yes Yes Not reported Only databases Yes No Inocêncio et al., 2020 No Yes Unclear Unclear Unclear Yes Figueiredo et al., 2020 Yes Unclear Unclear Both Unclear No Rodrigues et al., 202 Yes Yes Unclear Both Unclear No Jácome-Santos et al., 2020 Yes Yes Not reported Both Yes No Sant ´Anna et al., 2020 Yes Yes Not reported Only databases Yes Yes Sant’anna et al., 2020 Yes Yes Unclear Unclear Yes Yes Mattos et al., 2020 Yes Yes Unclear Both Yes Yes Silveira-Júnior et al., 2020 Yes Yes Not reported Only databases Yes No Caetano et al., 2020 Yes Yes Unclear Only databases Yes No Figueiredo et al., 2020 Yes Yes Only inclusion Only databases No Yes Naal et al., 2020 Yes Yes Unclear Both Yes No Tardelli et al., 2020 Yes Yes Only inclusion Both Unclear No Lopes et al., 2020 Yes Yes Only inclusion Both Unclear Yes Kunz et al., 2020 No Yes Unclear Only databases Yes Yes Uehara et al., 2020 Yes Yes Both Only databases Yes No Limírio et al., 2020 Yes Yes Not reported Both Yes Yes Sanches et al., 2020 Yes Yes Not reported Both Yes Yes Veloso et al., 2020 Yes Yes Only inclusion Only databases Yes Yes Oliveira et al., 2020 Yes Yes Only inclusion Unclear Yes Yes Ortiz et al., 2020 Yes Yes Only inclusion Unclear Yes No Scherer et al., 2020 Yes Yes Not reported Both Yes Yes Andrade et al., 2020 Yes Yes Unclear Only databases Yes No Martini et al., 2020 Yes Yes Not reported Only databases Unclear Yes Valesan et al., 2020 Yes Yes Unclear Unclear Yes Yes Oliveira et al., 2020 Yes Yes Not reported Unclear Yes Yes Santos et al., 2020 Yes Yes Not reported Only databases Yes Yes Corso et al., 2020 Yes Yes Not reported Only databases Yes Yes Gama et al., 2020 Yes Yes Unclear Unclear Yes No Pinto et al., 2020 Yes Yes Unclear Both Yes No Parize et al., 2020 Yes Yes Not reported Unclear Yes No Sabatini et al., 2020 Yes Yes Unclear Unclear Yes No Camarini et al., 2020 Yes Yes Not reported Not reported No No Sakuma et al., 2020 Yes Yes Not reported Unclear Yes Yes Silva et al., 2020 Yes Yes Not reported Only databases No Yes Santaella et al., 2020 Yes Yes Not reported Only databases Yes No Guerra et al., 2020 Yes Yes Not reported Not reported Yes Yes Munhoz et al., 2020 No Yes Not reported Only date Yes No Ibarra et al., 2020 Yes Yes Not reported Not reported Yes No Ribeiro et al., 2020 Yes Yes Not reported Both Yes No Galdino et al., 2020 Yes Yes Not reported Only databases Yes Yes Magrin et al., 2020 Yes Yes Unclear Unclear Yes No Souza et al., 2020 Yes Yes Not reported Both Yes Yes Borges et al., 2020 Yes Yes Only inclusion Both Yes Yes Magalhães et al., 2020 Yes Yes Both Only databases Yes No Martinho et al., 2020 No Yes Not reported Unclear Unclear Yes Souza et al., 2020 Yes Yes Unclear Both Yes Yes Resende et al., 2020 Yes Yes Unclear Only databases Yes Yes Langa et al., 2020 Yes Yes Unclear Unclear Yes Yes Basso et al., 2020 No Yes Unclear Only databases Yes No Oliveira et al., 2020 Yes Unclear Not reported Unclear Yes Yes Campos et al., 2020 Yes Yes Not reported Both Unclear Yes Albuini et al., 2020 Yes Yes Unclear Not reported Yes No Koch et al., 2020 Yes Yes Unclear Only databases Yes No Soares et al., 2020 Yes Yes Unclear Unclear Unclear Yes Jakymiu et al., 2020 Yes Unclear Unclear Both Yes No Peinado et al., 2020 Yes Yes Not reported Only databases Yes No Domingues et al., 2020 Yes Yes Unclear Only databases Yes No Barbosa et al., 2020 Yes Yes Unclear Both Yes No Vieira et al., 2020 Yes Yes Not reported Unclear Yes Yes Santos et al., 2020 Yes Yes Not reported Only databases Yes No Macedo et al., 2020 Yes Yes Not reported Unclear Yes Yes Dini et al., 2020 Yes Yes Not reported Not reported Unclear Yes Macena et al., 2020 Yes Yes Not reported Only databases Yes Yes Spessato et al., 2020 Yes Yes Not reported Both Yes Yes Baccaro et al., 2020 Yes Yes Only inclusion Both Unclear No Silva et al., 2020 Yes Yes Not reported Both Yes Yes Linhares et al., 2020 Yes Yes Only inclusion Only databases No No Ribeiro et al., 2020 Yes Yes Not reported Only databases Yes No Bezerra et al., 2020 Yes Yes Not reported Unclear Yes Yes Dias et al., 2020 No Yes Not reported Both Yes Yes ).

Table 1 presents the data related to the affiliation of the primary author and the dental specialization of the abstract. As a result, 20 studies were from the Universidade de Uberlândia (8.5%), followed by the Universidade de Santa Catarina (n=16;6.8%), while the Universidade Federal do Pará, Universidade Federal do Rio de Janeiro, Faculdade de Odontologia de Piracicaba (UNICAMP), and the Universidade Estadual Paulista (Araçatuba) presented 15 studies each (6.4%). The main specialization was Restorative and Esthetic Dentistry, numbering 47 studies (20%), followed by Oral and Maxillofacial Pathology/stomatology (n=41; 17.4%).

Thumbnail
Table 1
Characteristics of included studies

Figure 1 presents the reporting characteristics of the included abstracts. Most of studies mentioned the term “systematic review” in the title (n=219; 93.2%) and reported the objective (n=231; 98.3%). A great majority of studies did not report the eligibility criteria (n=97; 41.3%) or it was classified as unclear (n=96; 40.8%). In addition, the great majority of studies only reported the databases searched (n=103; 43.8%) or databases and date of search (n=74; 31.5%). Most of the studies reported the number of included studies (n=204; 86.8%), and most of the studies performed a meta-analysis (n=131; 55.7%).

Figure 1
Reporting characteristics of included abstracts.

Discussion

This is the first study in dentistry to assess the reporting characteristics of systematic review abstracts published in proceedings of conferences. Our results demonstrated that most of the aspects evaluated are well-reported, and we believe that results could be related to the fact that the conference abstracts included were peer-reviewed by experienced reviewers before the publication of conference proceedings. Also, our results are significant because the abstract could become a pivotal element to support clinical decision-making in some situations, as highlighted by Johnson et al. (2013)1616. Johnson HL, Fontelo P, Olsen CH, Jones KD 2nd, Gimbel RW. Family nurse practitioner student perception of journal abstract usefulness in clinical decision making: a randomized controlled trial. J Am Assoc Nurse Pract. 2013 Nov;25(11):597-603. doi: 10.1111/1745-7599.12013..

However, most studies did not report the eligibility criteria, or it was classified as unclear. This fact could be related to the limited number of words to write the abstract. Details about what evidence was eligible or ineligible are important to the readers to comprehend the review scope. One of the possibilities to report the eligibility criteria is to use the PICO framework highlighting the Population, Intervention, Comparator, and Outcome included in the review1717. Page MJ, McKenzie JE, Bossuyt PM, Boutron I, Hoffmann TC, Mulrow CD, et al. The PRISMA 2020 statement: an updated guideline for reporting systematic reviews. BMJ. 2021 Mar;372:n71. doi: 10.1136/bmj.n71..

A significant number of systematic review abstracts (n=235) were presented in the SBPqO meeting since establishing a special section for this type of study. Three aspects could be involved in this result: 1) Bassani et al. (2019)33. Bassani R, Pereira GKR, Page MJ, Tricco AC, Moher D, Sarkis-Onofre R. Systematic reviews in dentistry: current status, epidemiological and reporting characteristics. J Dent. 2019;82:71-84. doi: 10.1016/j.jdent.2019.01.014. demonstrated that Brazil is one of the countries that publish the most systematic reviews in dentistry; 2) Dotto et al. (2020)1818. Dotto L, T O Lemes L, O Spazzin A, Sousa YTCS, Pereira GKR, Bacchi A, et al. Acceptance of systematic reviews as Master/PhD theses in Brazilian graduate programs in dentistry. J Evid Based Med. 2020 May;13(2):125-9. doi: 10.1111/jebm.12382. showed that systematic reviews are well accepted as a Master’s or PhD thesis by Brazilian graduate programs in dentistry; and 3) Brazil has an upper-middle-income economy and systematic reviews are cheaper than other methodologies such as randomized controlled trials resulting in a research methodology appropriate for this setting1818. Dotto L, T O Lemes L, O Spazzin A, Sousa YTCS, Pereira GKR, Bacchi A, et al. Acceptance of systematic reviews as Master/PhD theses in Brazilian graduate programs in dentistry. J Evid Based Med. 2020 May;13(2):125-9. doi: 10.1111/jebm.12382..

When analyzing the primary authors’ affiliation, we can observe universities from different regions of Brazil which presented systematic reviews in the SBPqO meeting. The top university contributors could be the institutions where systematic reviews are well accepted in graduate programs, reflecting in their students presenting systematic reviews in that meeting. The main specializations reported were Restorative and Esthetic Dentistry (20%) and Oral and Maxillofacial Pathology/stomatology (17.4%). Bassani et al. (2019)33. Bassani R, Pereira GKR, Page MJ, Tricco AC, Moher D, Sarkis-Onofre R. Systematic reviews in dentistry: current status, epidemiological and reporting characteristics. J Dent. 2019;82:71-84. doi: 10.1016/j.jdent.2019.01.014. found that most specialization reporting in systematic reviews in dentistry indexed within PubMed during 2017 was Oral and Maxillofacial Surgery, followed by Oral and Maxillofacial Pathology/stomatology.

The PRISMA 2020 statement1717. Page MJ, McKenzie JE, Bossuyt PM, Boutron I, Hoffmann TC, Mulrow CD, et al. The PRISMA 2020 statement: an updated guideline for reporting systematic reviews. BMJ. 2021 Mar;372:n71. doi: 10.1136/bmj.n71. was recently published, providing an updated reporting guidance for systematic review abstracts. The guidance includes a 12-item checklist specifying details about the systematic review title, background, methods, results, discussion, funding and registration. However, the number of words in abstracts could be limited in some conferences, jeopardizing the completeness of information reported. For example, the SBPqO recommendations about the number of words in abstracts allow 1,470 characters, 120 in the title and 1,350 in the body of the text1919. Sociedade Brasileira de Pesquisa Odontológica. Instruções para envio de Resumos. SBPqO; 2020 [cited 2021 Mar 5]. Available from: https://www.sbpqo.org.br/hotsite2020/conteudo.asp?id=7.
https://www.sbpqo.org.br/hotsite2020/con... . Also, the recommendations of the International Association for Dental Research2020. International Association for Dental Research. Call for Abstracts. [cited 2021 Mar 5]. Available from: https://www.iadr.org/Portals/69/docs/Meetings/IAGS/2021/2021IA_CallforAbstracts.pdf.
https://www.iadr.org/Portals/69/docs/Mee... General Session for abstracts allow 300 words or less, which is better than SBPqO, but it is still limited. We believe that it would be better to expand the number of words accepted in abstracts, but there are costs involved in this process. Also, one crucial aspect is including the use of reporting guidelines in the instructions to authors to help in the abstract writing.

The most important limitation of our study is that we did not assess the abstracts published before the establishment of a systematic review section, and it is impossible to evaluate the impact of this establishment in terms of the number of systematic reviews abstracts and reporting quality, and we did not assess all items recommended by PRISMA for abstracts. We believe that future assessments should focus on spin strategies and the extent and level of spin involved in systematic reviews abstracts.

Thus, in light of the existence of a specific guideline for systematic review abstracts (PRISMA 2020)1717. Page MJ, McKenzie JE, Bossuyt PM, Boutron I, Hoffmann TC, Mulrow CD, et al. The PRISMA 2020 statement: an updated guideline for reporting systematic reviews. BMJ. 2021 Mar;372:n71. doi: 10.1136/bmj.n71., the SBPqO, which is the most important conference in oral health research in Brazil, should endorse the use of this statement to improve the reporting of abstracts and encourage students and researchers to use it.

In conclusion, based on this study, the reporting characteristics of systematic review abstracts published in the proceedings of the SBPqO meeting are satisfactory. However, there is room for improvement.

Acknowledgements

This study was conducted in a Graduate Program supported by CAPES, Brazil (Finance Code 001). RSO is funded in part by Meridional Foundation (Passo Fundo, Brazil), and WVOS is funded by the National Council for Scientific and Technological Development (CNPq, Brazil). However, these supporters had no role in the design of the study, in the collection or analysis of data, in the decision to publish or in preparing the manuscript.

References

  • 1
    Cook DJ, Mulrow CD, Haynes RB. Systematic reviews: synthesis of best evidence for clinical decisions. Ann. Intern. Med. 1997;126(5):376-80. doi: 10.7326/0003-4819-126-5-199703010-00006.
  • 2
    Murad MH, Montori VM. Synthesizing evidence: shifting the focus from individual studies to the body of evidence. 2013; 309(21):2217-8. doi: 10.1001/jama.2013.5616.
  • 3
    Bassani R, Pereira GKR, Page MJ, Tricco AC, Moher D, Sarkis-Onofre R. Systematic reviews in dentistry: current status, epidemiological and reporting characteristics. J Dent. 2019;82:71-84. doi: 10.1016/j.jdent.2019.01.014.
  • 4
    Saltaji H, Cummings GG, Armijo-Olivo S, Major MP, Amin M, Major PW, et al. A descriptive analysis of oral health systematic reviews published 1991-2012: cross sectional study. PLoS One. 2013 Sep;8(9):e74545. doi: 10.1371/journal.pone.0074545.
  • 5
    T O Lemes L, Dotto L, Agostini BA, Pereira GKR, Sarkis-Onofre R. How are meta-analyses being conducted and reported in dentistry?: a meta-research study. Braz J Oral Sci. 2021;20:e211701. doi: 10.20396/bjos.v20i00.8661701.
  • 6
    Hopewell S, Clarke M, Askie L. Reporting of trials presented in conference abstracts needs to be improved. J Clin Epidemiol. 2006 Jul;59(7):681-4. doi: 10.1016/j.jclinepi.2005.09.016.
  • 7
    Duan Y, Li J, Ai C, Chen Y, Chen P, Zhang M, et al. Quality of trials reported as conference abstracts in China: how well are they reported? Int J Technol Assess Health Care. 2009 Oct;25(4):479-84. doi: 10.1017/S0266462309990365.
  • 8
    Turpen RM, Fesperman SF, Smith WA, Vieweg J, Dahm P. Reporting quality and information consistency of randomized, controlled trials presented as abstracts at the American Urological Association annual meetings. J Urol. 2010 Jul;184(1):249-53. doi: 10.1016/j.juro.2010.03.045.
  • 9
    Yoon U, Knobloch K. Assessment of reporting quality of conference abstracts in sports injury prevention according to CONSORT and STROBE criteria and their subsequent publication rate as full papers. BMC Med Res Methodol. 2012 Apr;12:47. doi: 10.1186/1471-2288-12-47.
  • 10
    Yoon U, Knobloch K. Quality of reporting in sports injury prevention abstracts according to the CONSORT and STROBE criteria: an analysis of the World Congress of Sports Injury Prevention in 2005 and 2008. Br J Sports Med. 2012 Mar;46(3):202-6. doi: 10.1136/bjsm.2008.053876.
  • 11
    Speich B, Mc Cord KA, Agarwal A, Gloy V, Gryaznov D, Moffa G, et al. Reporting Quality of Journal Abstracts for Surgical Randomized Controlled Trials Before and After the Implementation of the CONSORT Extension for Abstracts. World J Surg. 2019 Jun;43(10):2371-8. doi: 10.1007/s00268-019-05064-1.
  • 12
    Narayan VM, Cone EB, Smith D, Scales CD Jr, Dahm P. Improved reporting of randomized controlled trials in the urologic literature. Eur Urol. 2016 Dec;70(6):1044-9. doi: 10.1016/j.eururo.2016.07.042.
  • 13
    Kumar S, Mohammad H, Vora H, Kar K. Reporting quality of randomized controlled trials of periodontal diseases in journal abstracts-a cross-sectional survey and bibliometric analysis. J Evid Based Dent Pract. 2018 Jun;18(2):130-141.e22. doi: 10.1016/j.jebdp.2017.08.005.
  • 14
    Sociedade Brasileira de Pesquisa Odontológica. Proceedings of the 36th SBPqO Annual Meeting. Braz Oral Res. 2019;33(suppl 2).
  • 15
    Sociedade Brasileira de Pesquisa Odontológica. Proceedings of the 37th SBPqO Virtual Annual Meeting. Braz Oral Res. 2020;34(suppl 2).
  • 16
    Johnson HL, Fontelo P, Olsen CH, Jones KD 2nd, Gimbel RW. Family nurse practitioner student perception of journal abstract usefulness in clinical decision making: a randomized controlled trial. J Am Assoc Nurse Pract. 2013 Nov;25(11):597-603. doi: 10.1111/1745-7599.12013.
  • 17
    Page MJ, McKenzie JE, Bossuyt PM, Boutron I, Hoffmann TC, Mulrow CD, et al. The PRISMA 2020 statement: an updated guideline for reporting systematic reviews. BMJ. 2021 Mar;372:n71. doi: 10.1136/bmj.n71.
  • 18
    Dotto L, T O Lemes L, O Spazzin A, Sousa YTCS, Pereira GKR, Bacchi A, et al. Acceptance of systematic reviews as Master/PhD theses in Brazilian graduate programs in dentistry. J Evid Based Med. 2020 May;13(2):125-9. doi: 10.1111/jebm.12382.
  • 19
    Sociedade Brasileira de Pesquisa Odontológica. Instruções para envio de Resumos. SBPqO; 2020 [cited 2021 Mar 5]. Available from: https://www.sbpqo.org.br/hotsite2020/conteudo.asp?id=7
    » https://www.sbpqo.org.br/hotsite2020/conteudo.asp?id=7
  • 20
    International Association for Dental Research. Call for Abstracts. [cited 2021 Mar 5]. Available from: https://www.iadr.org/Portals/69/docs/Meetings/IAGS/2021/2021IA_CallforAbstracts.pdf
    » https://www.iadr.org/Portals/69/docs/Meetings/IAGS/2021/2021IA_CallforAbstracts.pdf
  • Data availability
    Datasets related to this article will be available upon request to the corresponding author.

Supplemental material

List of numbers of included abstracts (2019).

1-RS001 42-RS045 83-RS097
2-RS002 43-RS046 84-RS098
3-RS003 44-RS048 85-RS099
4-RS004 45-RS049 86-RS100
5-RS005 46-RS050 87-RS101
6-RS006 47-RS051 88-RS102
7-RS007 48-RS052 89-RS103
8-RS008 49-RS054 90-RS104
9-RS010 50-RS055 91-RS105
10-RS011 51-RS057 92-RS106
11-RS012 52-RS058 93-RS107
12-RS013 53-RS059 94-RS109
13-RS014 54-RS060 95-RS110
14-RS016 55-RS061 96-RS111
15-RS017 56-RS062 97-RS113
16-RS018 57-RS064 98-RS114
17-RS019 58-RS065 99-RS115
18-RS020 59-RS068 100-RS116
19-RS021 60-RS069 101-RS117
20-RS022 61-RS070 102-RS118
21-RS023 62-RS071 103-RS119
22-RS024 63-RS072 104-RS121
23-RS025 64-RS073 105-RS122
24-RS026 65-RS075 106-RS123
25-RS027 66-RS076 107-RS124
26-RS028 67-RS077 108-RS126
27-RS029 68-RS078 109-RS128
28-RS030 69-RS079 110-RS129
29-RS031 70-RS082 111-RS130
30-RS032 71-RS083 112-RS131
31-RS033 72-RS084 113-RS132
32-RS034 73-RS085 114-RS134
33-RS035 74-RS086 115-RS135
34-RS036 75-RS087 116-RS136
35-RS037 76-RS088 117-RS137
36-RS038 77-RS090 118-RS138
37-RS040 78-RS091 119-RS139
38-RS041 79-RS092 120-RS140
39-RS042 80-RS093 121-RS142
40-RS043 81-RS094
41-RS044 82-RS096

List of numbers of included abstracts (2020).

122-RS001 160-RS041 198-RS081
123-RS002 161-RS043 199-RS082
124-RS003 162-RS044 200-RS083
125-RS004 163-RS045 201-RS084
126-RS005 164-RS046 202-RS085
127-RS006 165-RS048 203-RS086
128-RS007 166-RS049 204-RS087
129-RS008 167-RS050 205-RS088
130-RS009 168-RS051 206-RS089
131-RS010 169-RS052 207-RS090
132-RS012 170-RS053 208-RS091
133-RS013 171-RS054 209-RS092
134-RS014 172-RS055 210-RS093
135-RS015 173-RS056 211-RS094
136-RS016 174-RS057 212-RS095
137-RS017 175-RS058 213-RS096
138-RS018 176-RS059 214-RS097
139-RS019 177-RS060 215-RS098
140-RS020 178-RS061 216-RS099
141-RS021 179-RS062 217-RS100
142-RS023 180-RS063 218-RS101
143-RS024 181-RS064 219-RS102
144-RS025 182-RS065 220-RS103
145-RS026 183-RS066 221-RS104
146-RS027 184-RS067 222-RS105
147-RS028 185-RS068 223-RS107
148-RS029 186-RS069 224-RS108
149-RS030 187-RS070 225-RS109
150-RS031 188-RS071 226-RS111
151-RS032 189-RS072 227-RS112
152-RS033 190-RS073 228-RS113
153-RS034 191-RS074 229-RS114
154-RS035 192-RS075 230-RS115
155-RS036 193-RS076 231-RS116
156-RS037 194-RS077 232-RS117
157-RS038 195-RS078 233-RS118
158-RS039 196-RS079 234-RS119
159-RS040 197-RS080 235-RS120

Characteristics of each abstract included.

Author/Year Systematic review mentioned in the title Objective reported Eligibility criteria reported Reporting of information sources Number of included studies Meta-analysis conducted
Nunes et al., 2019 Yes Yes Not reported Only databases Yes Yes
Reis et al., 2019 Yes Yes Only inclusion Only databases Yes No
Frazão et al., 2019 Yes Yes Only inclusion Only databases Yes Yes
Granja et al., 2019 Yes Yes Unclear Unclear Yes Yes
Lacerda-Santos et al., 2019 Yes Yes Unclear Unclear Yes Yes
Paulo et al., 2019 Yes Yes Not reported Only databases Yes No
Pereira et al., 2019 Yes Yes Not reported Only databases Yes Yes
Cetira-Filho Yes Yes Unclear Only databases Unclear Yes
Novais et al., 2019 Yes Yes Unclear Unclear Yes Yes
Amaral et al., 2019 Yes Yes Not reported Only databases Yes No
Thuller et al., 2019 Yes Yes Only exclusion Only databases Yes Yes
Falcão et al., 2019 Yes Yes Unclear Both Yes Yes
Barbosa et al., 2019 Yes Yes Only inclusion Only databases Yes No
Stringhini-Junior et al., 2019 Yes Yes Unclear Both Yes Yes
Moraes et al., 2019 Yes Yes Only inclusion Both Yes Yes
Alves et al., 2019 Yes Yes Only inclusion Both Yes Yes
Basso et al., 2019 Yes Yes Unclear Only databases Yes Yes
Wembier et al., 2019 Yes Yes Unclear Only databases Yes Yes
Silva et al., 2019 Yes Yes Unclear Both Yes Yes
Bronzato et al., 2019 Yes Yes Unclear Only databases Yes Yes
Albuquerque et al., 2019 Yes Yes Not reported Both Yes No
Castro et al., 2019 Yes Yes Unclear Only databases Yes Yes
Pinto et al., 2019 Yes Yes Unclear Both Yes Yes
Scarsi et al., 2019 Yes Yes Only inclusion Only databases Yes Yes
Campos et al., 2019 Yes Yes Unclear Only databases Yes Yes
Spinola et al., 2019 Yes Yes Not reported Only databases Yes No
Oliveira et al., 2019 Yes Yes Not reported Only databases Yes Yes
Terto et al., 2019 Yes Yes Only exclusion Both Yes Yes
Castilho et al., 2019 Yes Yes Unclear Only databases Yes Yes
Lima et al., 2019 Yes Yes Unclear Unclear No Yes
Andrade et al., 2019 Yes Yes Unclear Only databases Yes Yes
Baroni et al., 2019 Yes Yes Unclear Only databases Yes No
Rende et al., 2019 No Yes Unclear Unclear Yes Yes
Guimaraes et al., 2019 No Yes Not reported Only databases Yes Yes
Fontes et al., 2019 Yes Yes Unclear Only databases Yes No
Dantas et al., 2019 Yes Yes Only inclusion Both Yes Yes
Milani et al., 2019 Yes Yes Unclear Only databases Unclear Yes
Bedran et al., 2019 Yes Yes Not reported Only databases Yes Yes
Cruz et al., 2019 Yes Yes Not reported Unclear Yes Yes
Ribeiro-Lages et al., 2019 Yes Yes Not reported Only databases Yes Yes
Mocchelini et al., 2019 Yes Yes Not reported Only databases Yes Yes
Masson et al., 2019 Yes Yes Unclear Both Yes Yes
Duarte et al., 2019 Yes Yes Not reported Only databases Yes Yes
Seabra et al., 2019 Yes Yes Not reported Both Yes Yes
Nadelman et al., 2019 Yes Yes Only inclusion Only databases Yes No
Messignan et al., 2019 Yes Yes Not reported Only databases Yes Yes
Dantas et al., 2019 Yes Yes Not reported Unclear No No
Gonçalves et al., 2019 No Yes Not reported Only databases Yes Yes
Oliveira et al., 2019 Yes Yes Both Both Yes No
Bellini-Pereira et al., 2019 Yes Yes Only inclusion Both Yes Yes
Prado et al., 2019 Yes Yes Only inclusion Only databases Yes Yes
Pinheiro et al., 2019 Yes Yes Unclear Only databases Yes No
Cardoso et al., 2019 Yes Yes Not reported Both Yes Yes
Farias Junior et al.,2019 Yes Yes Unclear Both Yes No
Silva et al., 2019 Yes Yes Only inclusion Both Yes No
Silveira et al;. 2019 Yes Yes Unclear Unclear Yes No
Nascimento et al., 2019 Yes Yes Unclear Both Yes No
Neves et al., 2019 Yes Yes Unclear Not reported Unclear Yes
Nunes et al., 2019 Yes Yes Unclear Only databases Unclear No
Lins et al., 2019 No Yes Not reported Only databases Yes Yes
Farias et al., 2019 Yes Yes Unclear Only databases Yes No
Dietrich et al., 2019 Yes Yes Unclear Both Yes No
Polmann et al., 2019 Yes Yes Not reported Only databases Yes No
Maran et al., 2019 Yes Yes Not reported Only databases Yes Yes
Lima et al., 2019 No Yes Unclear Both Yes No
Martini et al., 2019 Yes Yes Not reported Only databases Yes No
Antonio et al., 2019 Yes Yes Only inclusion Only databases Yes No
Né et al., 2019 Yes Yes Unclear Unclear Yes No
Fidalgo et al., 2019 Yes Yes Unclear Only databases Yes No
Nascimento et al., 2019 No Yes Not reported Only databases Yes Yes
Bacchin et al., 2019 Yes Yes Not reported Only databases Yes No
Roithmann et al., 2019 Yes Yes Unclear Both Yes Yes
Maroli et al., 2019 Yes Yes Both Only databases Yes No
Carneiro-Campos et al., 2019 Yes Yes Only inclusion Both Unclear Yes
Brunetto et al., 2019 Yes Yes Unclear Both Yes Yes
Minatel et al., 2019 Yes Yes Not reported Only databases Yes No
Lemos et al., 2019 Yes Yes Not reported Unclear Yes Yes
Silva et al., 2019 Yes Yes Unclear Both Yes Yes
Barcelos et al.,2019 Yes Yes Only exclusion Both Yes No
Gomez et al., 2019 Yes Yes Not reported Both Yes No
Magalhães et al., 2019 Yes Yes Not reported Only databases Yes No
Sarmento et al., 2019 Yes Yes Unclear Both Yes No
Barbosa et al., 2019 Yes Yes Not reported Unclear Yes Yes
Lhano et al., 2019 Yes Yes Unclear Only databases Unclear Yes
Oliveira et al., 2019 Yes Yes Not reported Both Yes Yes
Nascimento et al., 2019 No Yes Not reported Only databases Yes Yes
Oliveira et al., 2019 Yes Yes Unclear Only databases Yes Yes
Silva et al., 2019 Yes Yes Both Only databases Yes Yes
Dutra et al., 2019 Yes Yes Not reported Only databases Unclear Yes
Macedo-Filho et al., 2019 Yes Yes Unclear Both Yes Yes
Oliveira et al., 2019 Yes Yes Not reported Unclear Yes Yes
Kammer et al.,2019 Yes Yes Not reported Unclear Yes Yes
Berretta et al., 2019 Yes Yes Only inclusion Unclear Yes No
Diniz et al., 2019 Yes Yes Unclear Unclear Yes No
Reis et al., 2019 Yes Yes Unclear Unclear Yes No
Silveira et al;. 2019 Yes Yes Only inclusion Unclear Yes Yes
Martins et al., 2019 Yes Yes Not reported Unclear Yes Yes
Jerônimo et al., 2019 Yes Yes Unclear Unclear Yes Yes
Rosa et al., 2019 Yes Yes Unclear Both Yes Yes
Lago et al., 2019 Yes Yes Unclear Both Yes Yes
Haas et al., 2019 No Unclear Unclear Only databases Yes Yes
Melo et al., 2019 Yes Yes Unclear Unclear Yes No
Lavôr et al., 2019 Yes Yes Unclear Unclear Yes No
Oliveira et al., 2019 Yes Yes Unclear Both Yes No
Paulo et al., 2019 Yes Yes Unclear Unclear Yes Yes
Lisboa et al., 2019 Yes Yes Not reported Only databases Yes No
Martins et al., 2019 Yes Yes Only inclusion Only databases Yes No
Campos et al., 2019 Yes Yes Not reported Only databases No No
Rolim et al., 2019 Yes Yes Unclear Both Yes Yes
Silva et al., 2019 Yes Yes Unclear Only databases Yes Yes
Campos et al., 2019 Yes Yes Not reported Unclear Unclear No
Souza et al., 2019 Yes Yes Unclear Only databases Yes Yes
Miranda et al., 2019 Yes Yes Not reported Only databases Yes Yes
Raymundo et al., 2019 Yes Yes Not reported Only databases No Yes
Caldas et al., 2019 Yes Yes Not reported Both Yes No
Miranda et al., 2019 Yes Yes Unclear Only databases Yes No
Alvarenga et al., 2019 Yes Yes Not reported Unclear Yes Yes
Santos et al., 2019 No Yes Not reported Only databases Yes No
Rendohl et al., 2019 Yes Yes Only inclusion Both No Yes
Limírio et al., 2019 Yes Yes Not reported Both Yes Yes
Borges et al., 2019 Yes Yes Not reported Not reported Yes Yes
Reis et al., 2020 Yes Yes Unclear Only databases Yes No
Gonçalves et al., 2020 Yes Yes Unclear Both Yes Yes
Vidigal et al., 2020 Yes Yes Not reported Unclear Yes Yes
Leal et al., 2020 Yes Yes Not reported Both Yes No
Silva et al., 2020 No Yes Unclear Both Yes No
Rosatto et al., 2020 Yes Yes Not reported Unclear Yes No
Sarmento et al., 2020 Yes Yes Not reported Unclear Yes No
Matos et al., 2020 Yes Yes Not reported Unclear Yes No
Gabriel et al., 2020 Yes Yes Not reported Unclear Yes Yes
Dias-Junior et al., 2020 Yes Yes Unclear Only databases Yes Yes
Nóbrega et al., 2020 Yes Yes Unclear Only databases Unclear Yes
Sponchiado-Júnior et al., 2020 Yes Yes Unclear Only databases Yes No
Martins et al., 2020 Yes Yes Unclear Only databases Yes No
Pirovani et al., 2020 Yes Yes Unclear Both Yes No
Feitosa et al., 2020 Yes Yes Only inclusion Only databases Yes No
Salomão et al., 2020 Yes Yes Only inclusion Only databases Yes Yes
Kwiatkowski et al., 2020 Yes Yes Unclear Both Yes No
Lopes et al., 2020 Yes Yes Unclear Only databases Yes No
Soares et al., 2020 Yes Yes Not reported Only databases Yes No
Né et al., 2020 Yes Yes Unclear Only databases Yes Yes
Carvalho et al., 2020 Yes Yes Unclear Only databases Yes No
Araujo et al., 2020 Yes Yes Not reported Only databases Yes No
Silver et al., 2020 Yes Yes Only inclusion Only databases Yes Yes
Schoeffel et al., 2020 Yes Yes Only inclusion Unclear Yes Yes
Muknickas et al., 2020 Yes Yes Unclear Only databases Unclear No
Rezende et al., 2020 Yes Yes Unclear Both Yes No
Oliveira et al., 2020 Yes Yes Only inclusion Both Yes Yes
Cruz et al., 2020 Yes Yes Not reported Unclear Yes Yes
Oliveira et al., 2020 Yes Yes Both Both Yes No
Martins et al., 2020 Yes Yes Not reported Only databases Yes Yes
Mocchelini et al., 2020 Yes Yes Not reported Only databases Yes Yes
Miyahira et al., 2020 Yes Yes Unclear Only databases Yes Yes
Machado et al., 2020 Yes Yes Only inclusion Both Yes No
Miranda et al., 2020 Yes Yes Only inclusion Both Yes No
Soares et al., 2020 Yes Yes Unclear Both Yes No
Pintor et al., 2020 Yes Yes Only inclusion Both Yes No
Camatta et al., 2020 Yes Yes Unclear Only databases No Yes
Sanglard et al., 2020 Yes Yes Not reported Both Yes No
Haibara et al., 2020 Yes Yes Unclear Both Yes No
Fontes et al., 2020 Yes Yes Unclear Only databases Yes No
Latieri et al., 2020 Yes Yes Unclear Both Yes No
Bonzanini et al., 2020 Yes Yes Not reported Both Yes Yes
Soares et al., 2020 Yes Yes Not reported Only databases Yes Yes
Neves et al., 2020 Yes Yes Not reported Only databases Yes No
Inocêncio et al., 2020 No Yes Unclear Unclear Unclear Yes
Figueiredo et al., 2020 Yes Unclear Unclear Both Unclear No
Rodrigues et al., 202 Yes Yes Unclear Both Unclear No
Jácome-Santos et al., 2020 Yes Yes Not reported Both Yes No
Sant ´Anna et al., 2020 Yes Yes Not reported Only databases Yes Yes
Sant’anna et al., 2020 Yes Yes Unclear Unclear Yes Yes
Mattos et al., 2020 Yes Yes Unclear Both Yes Yes
Silveira-Júnior et al., 2020 Yes Yes Not reported Only databases Yes No
Caetano et al., 2020 Yes Yes Unclear Only databases Yes No
Figueiredo et al., 2020 Yes Yes Only inclusion Only databases No Yes
Naal et al., 2020 Yes Yes Unclear Both Yes No
Tardelli et al., 2020 Yes Yes Only inclusion Both Unclear No
Lopes et al., 2020 Yes Yes Only inclusion Both Unclear Yes
Kunz et al., 2020 No Yes Unclear Only databases Yes Yes
Uehara et al., 2020 Yes Yes Both Only databases Yes No
Limírio et al., 2020 Yes Yes Not reported Both Yes Yes
Sanches et al., 2020 Yes Yes Not reported Both Yes Yes
Veloso et al., 2020 Yes Yes Only inclusion Only databases Yes Yes
Oliveira et al., 2020 Yes Yes Only inclusion Unclear Yes Yes
Ortiz et al., 2020 Yes Yes Only inclusion Unclear Yes No
Scherer et al., 2020 Yes Yes Not reported Both Yes Yes
Andrade et al., 2020 Yes Yes Unclear Only databases Yes No
Martini et al., 2020 Yes Yes Not reported Only databases Unclear Yes
Valesan et al., 2020 Yes Yes Unclear Unclear Yes Yes
Oliveira et al., 2020 Yes Yes Not reported Unclear Yes Yes
Santos et al., 2020 Yes Yes Not reported Only databases Yes Yes
Corso et al., 2020 Yes Yes Not reported Only databases Yes Yes
Gama et al., 2020 Yes Yes Unclear Unclear Yes No
Pinto et al., 2020 Yes Yes Unclear Both Yes No
Parize et al., 2020 Yes Yes Not reported Unclear Yes No
Sabatini et al., 2020 Yes Yes Unclear Unclear Yes No
Camarini et al., 2020 Yes Yes Not reported Not reported No No
Sakuma et al., 2020 Yes Yes Not reported Unclear Yes Yes
Silva et al., 2020 Yes Yes Not reported Only databases No Yes
Santaella et al., 2020 Yes Yes Not reported Only databases Yes No
Guerra et al., 2020 Yes Yes Not reported Not reported Yes Yes
Munhoz et al., 2020 No Yes Not reported Only date Yes No
Ibarra et al., 2020 Yes Yes Not reported Not reported Yes No
Ribeiro et al., 2020 Yes Yes Not reported Both Yes No
Galdino et al., 2020 Yes Yes Not reported Only databases Yes Yes
Magrin et al., 2020 Yes Yes Unclear Unclear Yes No
Souza et al., 2020 Yes Yes Not reported Both Yes Yes
Borges et al., 2020 Yes Yes Only inclusion Both Yes Yes
Magalhães et al., 2020 Yes Yes Both Only databases Yes No
Martinho et al., 2020 No Yes Not reported Unclear Unclear Yes
Souza et al., 2020 Yes Yes Unclear Both Yes Yes
Resende et al., 2020 Yes Yes Unclear Only databases Yes Yes
Langa et al., 2020 Yes Yes Unclear Unclear Yes Yes
Basso et al., 2020 No Yes Unclear Only databases Yes No
Oliveira et al., 2020 Yes Unclear Not reported Unclear Yes Yes
Campos et al., 2020 Yes Yes Not reported Both Unclear Yes
Albuini et al., 2020 Yes Yes Unclear Not reported Yes No
Koch et al., 2020 Yes Yes Unclear Only databases Yes No
Soares et al., 2020 Yes Yes Unclear Unclear Unclear Yes
Jakymiu et al., 2020 Yes Unclear Unclear Both Yes No
Peinado et al., 2020 Yes Yes Not reported Only databases Yes No
Domingues et al., 2020 Yes Yes Unclear Only databases Yes No
Barbosa et al., 2020 Yes Yes Unclear Both Yes No
Vieira et al., 2020 Yes Yes Not reported Unclear Yes Yes
Santos et al., 2020 Yes Yes Not reported Only databases Yes No
Macedo et al., 2020 Yes Yes Not reported Unclear Yes Yes
Dini et al., 2020 Yes Yes Not reported Not reported Unclear Yes
Macena et al., 2020 Yes Yes Not reported Only databases Yes Yes
Spessato et al., 2020 Yes Yes Not reported Both Yes Yes
Baccaro et al., 2020 Yes Yes Only inclusion Both Unclear No
Silva et al., 2020 Yes Yes Not reported Both Yes Yes
Linhares et al., 2020 Yes Yes Only inclusion Only databases No No
Ribeiro et al., 2020 Yes Yes Not reported Only databases Yes No
Bezerra et al., 2020 Yes Yes Not reported Unclear Yes Yes
Dias et al., 2020 No Yes Not reported Both Yes Yes

Edited by

Editor: Dr Altair A. Del Bel Cury

Publication Dates

  • Publication in this collection
    15 Apr 2022
  • Date of issue
    2022

History

  • Received
    14 July 2021
  • Accepted
    27 Oct 2021
Creative Common - by-nc 4.0
This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License, which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Faculdade de Odontologia de Piracicaba - UNICAMP Avenida Limeira, 901, cep: 13414-903, Piracicaba - São Paulo / Brasil, Tel: +55 (19) 2106-5200 - Piracicaba - SP - Brazil
E-mail: brjorals@unicamp.br
Acompanhe os números deste periódico no seu leitor de RSS