Abstract: The purpose of this review was to identify and analyze the main characteristics of the 100 most-cited papers in the field of endodontic therapy in primary teeth. A search for the most-cited articles was conducted in the Clarivate Analytics Web of Science ‘Core-Collection’ (WoS-CC) database up to December 2020. Papers were ranked in descending order, by number of citations, and each paper was matched with the citation count on Scopus and Google Scholar. Two independent reviewers selected the most-cited papers and analyzed it according to the number and density of citations, year and journal of publication, authors, countries and contributing institutions, study design, topic of the paper, and keywords. Spearman’s correlation and Poisson regression were used to determine associations between the number of citations and study characteristics. The citation count varied from 15 to 135 (WoS-CC), 8 to 141 (Scopus), and 14 to 317 (Google Scholar). Of the 306 contributing authors, most paper contributions were from Sakai VT, Oliveira TM, and Machado MAAM (5 each). Most of the papers originated from the USA (n=21) and Brazil (n=18). Randomized trials were the most common study design (n=32), and “pulpotomy” was the most frequently used keyword (n=35). Poisson regression showed that the number of citations decreased by 1.5% each year, and increased by 9.7% for each unit of impact factor. This bibliometric analysis highlighted papers, authors, and institutions that have contributed to endodontic therapy in primary teeth. Common terms of interest in this research area was also identified, representing the first bibliometric analysis on this subject.

Resumo Objetivos: descrever os resultados perineais de mulheres que tiveram parto na água e fora da água. Métodos: estudo transversal e quantitativo desenvolvido em um hospital público de Setúbal, Portugal. A população foi de mulheres que participaram do "Projeto Parto na Água", no período de 2011 a 2014, que deram à luz na água e fora da água. Foram selecionadas para o estudo 104 mulheres de acordo com os critérios de inclusão estabelecidos. Os grupos foram comparados de acordo com as seguintes variáveis: demografia, informação obstétrica, assistência ao parto e resultados perineais. Os dados foram analisados no software Stata(r), com estatísitica descritiva e bivariada (qui-quadrado e teste de Fisher). Resultados: foram estudados os prontuários de 73 mulheres que deram à luz na água e 31 mulheres que deram à luz fora da água. Os partos na água foram significativamente associados a menos lacerações perineais, menores taxas de episiotomia e menor tempo de parto. Conclusão: os resultados do estudo sugerem que o parto na água tem um efeito protetor contra lacerações perineais severas de terceiro ou de quarto grau durante a expulsão fetal na água.

Abstract Objectives: to describe the perineal outcomes of women who had delivered in water and out of water. Methods: a cross-sectional and quantitative study developed in a public hospital in Setúbal, Portugal. The population was of women who participated in the "Water Birth Project" in the period from 2011 to 2014, which gave birth in water and out of water. 104 women were selected according to established inclusion criteria. The groups were compared according to the following variables: demographics, obstetric information, delivery care and perineal outcomes. The data were analyzed in the Stata(r) software, with descriptive and bivariate statistics (chi-square and Fisher's test). Results: the medical records of 73 women who gave birth in water and 31 women who gave birth out of water were studied. Water deliveries were significantly associated with fewer perineal lacerations, lower rates of episiotomy, and shorter delivery time. Conclusions: the results of the study suggest that childbirth in water has a protective effect against severe third or fourth degree perineal tears, during fetal expulsion in water.