Dental Press Journal of Orthodonticshttps://www.scielo.br/journal/dpjo/feed/2024-02-09T20:16:35.737000ZVol. 29 No. 1 - 2024WerkzeugImpact of orthodontic treatment on OHRQoL of adolescents: a longitudinal study10.1590/2177-6709.29.1.e2423136.oar2024-02-09T20:16:35.737000Z2020-08-09T06:48:27.903000ZGUERINO, PaulaORTIZ, Fernanda RuffoMARQUEZAN, MarianaARDENGHI, Thiago MachadoFERRAZZO, Vilmar Antônio
<em>Guerino, Paula</em>;
<em>Ortiz, Fernanda Ruffo</em>;
<em>Marquezan, Mariana</em>;
<em>Ardenghi, Thiago Machado</em>;
<em>Ferrazzo, Vilmar Antônio</em>;
<br/><br/>
ABSTRACT Objective: The aim of this study was to evaluate the extent to which orthodontic treatment need is perceived by the patients and by the orthodontist, as well as the possible impacts on the OHRQoL (Oral Health-Related Quality of Life) over the course of conventional orthodontic treatment in adolescent patients. Methods: The sample consisted of 55 adolescents. The perception of patients and orthodontists relative to the malocclusion was evaluated by the IOTN (Index of Orthodontic Treatment Need). The OHRQoL was evaluated by the Child-OIDP (Child-Oral Impacts on Daily Performances) questionnaire before the conventional orthodontic appliance was bonded (T0); and at the following time intervals: after one week (T1), one month (T2), three months (T3), six months (T4), and after the end of orthodontic treatment (T5). Results: Adolescents who had large orthodontic treatment needs had a poor OHRQoL, according to their self-perception (p=0.003) and according to the orthodontist’s perception (p<0.001), when compared with patients with small and moderate needs. There was statistically significant difference in the OHRQoL between the time intervals T0 and T1 (p=0.021), T2 and T3 (p<0.001), T3 and T4 (p=0.033), and T0 and T5 (p<0.002). At the end of treatment, all evaluated participants reported an improvement in OHRQoL. Conclusions: It was concluded that adolescents and orthodontists agreed with regard to the perception of orthodontic treatment need. In the first week and in the first month of orthodontic treatment, there was a negative impact on the OHRQoL. After three months, an improvement of OHRQoL was detected, which has progressed over time.Impact of fixed orthodontic retainers on oral health-related quality of life: a longitudinal prospective study10.1590/2177-6709.29.1.e242317.oar2024-02-09T20:16:35.737000Z2020-08-09T06:48:27.903000ZMEDINA, Melany Clarissa GámezSANTOS, Cibelle Cristina Oliveira dosLIMA, Beatriz OliveiraFERREIRA, Marina BosiNORMANDO, David
<em>Medina, Melany Clarissa Gámez</em>;
<em>Santos, Cibelle Cristina Oliveira Dos</em>;
<em>Lima, Beatriz Oliveira</em>;
<em>Ferreira, Marina Bosi</em>;
<em>Normando, David</em>;
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ABSTRACT Objective: The aim of the present study was to assess the impact of orthodontic retainers on oral health-related quality of life (OHRQoL) in the short and long terms after orthodontic treatment. Methods: Data from 45 patients up to three years after orthodontic treatment (T0) were analyzed. Patients were reassessed four years (T1) after T0. OHRQoL was measured using the OHIP-14 (Oral Health Impact Profile-14) questionnaire. The presence of a fixed retainer in the upper and/or lower arches, sex, and age were the predictive variables evaluated at T0 and T1. The occurrence of retainer fracture at T0 was clinically evaluated. Due to the COVID-19 pandemic, clinical examination on T1 was not possible, so the OHIP-14 and the self-perception of changes in teeth position and fracture of retainers were examined using an on-line questionnaire. Results: At the initial examination, the presence of upper retainers had a negative impact on quality of life (p=0.018). The OHIP-14 value increased significantly from T0 to T1 (p=0.014), regardless of the presence of retainers. The fracture or debonding of the retainer reported by the patient was the only variable that had a negative impact on OHRQoL (p=0.05). Conclusion: The use of fixed upper retainers suggests a negative impact on the quality of life of the orthodontic patient after the end of orthodontic treatment. This impact, however, is negligible in the long term, except when associated with fracture or debonding. This study emphasizes the need for continuous follow-up of orthodontic patients during the retention period.Effect of different palatal expanders with miniscrews in surgically assisted rapid palatal expansion: A non-linear finite element analysis10.1590/2177-6709.29.1.e2423195.oar2024-02-09T20:16:35.737000Z2020-08-09T06:48:27.903000ZKOÇ, OsmanKOÇ, NagihanJACOB, Helder Baldi
<em>Koç, Osman</em>;
<em>Koç, Nagihan</em>;
<em>Jacob, Helder Baldi</em>;
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ABSTRACT Introduction: Surgically assisted rapid palatal expansion (SARPE) has been the treatment of choice in subjects presenting skeletally mature sutures. Objective: The purpose of this study was to analyze stress distribution and displacement of the craniofacial and dentoalveolar structures resulting from three types of palatal expanders with surgical assistance using a non-linear finite element analysis. Material and Methods: Three different palatal expanders were designed: Model-I (tooth-bone-borne type containing four miniscrews), Model-II (tooth-bone-borne type containing two miniscrews), and Model-III (bone-borne type containing four miniscrews). A Le Fort I osteotomy was performed, and a total of 5.0 mm palatal expansion was simulated. Nonlinear analysis (three theory) method (geometric nonlinear theory, nonlinear contact theory, and nonlinear material methods) was used to evaluate stress and displacement of several craniofacial and dentoalveolar structures. Results: Regardless of the maxillary expander device type, surgically assisted rapid palatal expansion produces greater anterior maxillary expansion than posterior (ANS ranged from 2.675 mm to 3.444 mm, and PNS ranged from 0.522 mm to 1.721 mm); Model-I showed more parallel midpalatal suture opening pattern - PNS/ANS equal to 54%. In regards to ANS, Model-II (1.159 mm) and Model-III (1.000 mm) presented larger downward displacement than Model-I (0.343 mm). PNS displaced anteriorly more than ANS for all devices; Model-III presented the largest amount of forward displacement for PNS (1.147 mm) and ANS (1.064 mm). All three type of expanders showed similar dental displacement, and minimal craniofacial sutures separation. As expected, different maxillary expander designs produce different primary areas and levels of stresses (the bone-borne expander presented minimal stress at the teeth and the tooth-bone-borne expander with two miniscrews presented the highest). Conclusions: Based on this finite element method/finite element analysis, the results showed that different maxillary expander designs produce different primary areas and levels of stresses, minimal displacement of the craniofacial sutures, and different skeletal V-shape expansion.Occlusion development after premature loss of deciduous anterior teeth: preliminary results of a 24-month prospective cohort study10.1590/2177-6709.29.1.e2423285.oar2024-02-09T20:16:35.737000Z2020-08-09T06:48:27.903000ZNADELMAN, PatriciaVARGAS, Eduardo Otero AmaralMARAÑÓN-VÁSQUEZ, Guido ArtemioVOLLÚ, Ana LúciaPITHON, Matheus MeloCASTRO, Amanda Cunha Regal deMAIA, Lucianne Cople
<em>Nadelman, Patricia</em>;
<em>Vargas, Eduardo Otero Amaral</em>;
<em>Marañón-Vásquez, Guido Artemio</em>;
<em>Vollú, Ana Lúcia</em>;
<em>Pithon, Matheus Melo</em>;
<em>Castro, Amanda Cunha Regal De</em>;
<em>Maia, Lucianne Cople</em>;
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ABSTRACT Objective: This study aimed to evaluate occlusion development after premature loss or extraction of deciduous anterior teeth, by means of a prospective cohort study. Methods: Fifteen infants and children aged 1 to 5 years old were longitudinally assessed (with loss or extraction of deciduous anterior teeth [n = 9], and without tooth losses [n = 6]). Photographs and dental casts at the baseline and after 24 months of follow-up were performed. Dental casts were scanned, and linear measurements were made on the digitalized models (missing tooth space, arch perimeter, arch length, arch width, intercanine length and intercanine width). The t-test was used for groups comparisons (α = 0.05). Results: Individuals’ mean age at baseline was 2.93 (± 1.18) years. No statistically significant differences were observed in the missing tooth space in the group with tooth loss during the 24 months of follow-up (p > 0.05). Arch perimeter, arch length, arch width, intercanine length and intercanine width did not show differences between the groups (p > 0.05). Qualitative photographic evaluation revealed other changes in the dental arches and occlusion, such as exfoliation and eruption of deciduous teeth, eruption of permanent teeth, self-correction or establishment of malocclusion, among others. Conclusion: The results suggest that the premature loss of deciduous anterior teeth does not affect the perimeter, length and width of the dental arches; however, other alterations that lead to malocclusion could be established.Civil liability of orthodontists and aligner manufacturers in the treatment with orthodontic aligners10.1590/2177-6709.29.1.e24spe12024-02-09T20:16:35.737000Z2020-08-09T06:48:27.903000ZPINHEIRO, Isabela SalesGUEDES, Cleverson Raymundo SbarziAPOLINÁRIO, Analina BragaFARIA, Fernanda Ramos deMOTA JÚNIOR, Sergio LuizPHITON, Matheus MeloCAMPOS, Marcio José da SilvaVITRAL, Robert Willer Farinazzo
<em>Pinheiro, Isabela Sales</em>;
<em>Guedes, Cleverson Raymundo Sbarzi</em>;
<em>Apolinário, Analina Braga</em>;
<em>Faria, Fernanda Ramos De</em>;
<em>Mota Júnior, Sergio Luiz</em>;
<em>Phiton, Matheus Melo</em>;
<em>Campos, Marcio José Da Silva</em>;
<em>Vitral, Robert Willer Farinazzo</em>;
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ABSTRACT Introduction: The use of clear aligners as an alternative to fixed orthodontic appliances has become popular due to the aesthetic demands of adult patients seeking orthodontic treatment. However, orthodontists’ lack of knowledge about the legal consequences of their activities, and the lack of solid scientific evidence raise concerns regarding civil liability in this type of treatment. Marketing campaigns of manufacturing companies often exaggerate promises of results, and ignore the lack of scientific evidence. Patients, as consumers, are protected by the Consumer Protection Code, whereas orthodontists are considered treatment providers. Therefore, they can be held liable for damage caused to patients, whether by subjective or objective fault. Objective: This article aims to identify the civil responsibilities of orthodontists and aligner manufacturing companies, by means of a literature review, providing basic legal guidance to help professionals protect themselves from possible lawsuits related to treatment with orthodontic aligners. Conclusions: The study highlights the importance of knowledge of legal notions in treatments with orthodontic aligners by orthodontists, who should legally safeguard themselves through individual written contracts, avoiding obligation of results. In addition, in cases of legal claims, it is possible that the manufacturing companies are jointly and severally liable for possible damages claimed by the patient.