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Authors
Abstract(s)
Introdução: A relação entre o apinhamento dentário ântero-inferior e o terceiro
molar inferior sempre foi objeto de estudo e discussão para muitos profissionais.
Ser capaz de identificar uma certa correlação entre este dente e o apinhamento
dentário seria de grande ajuda no tratamento ortodôntico.
Objetivo: Estudar a relação do terceiro molar inferior com o apinhamento
dentário ântero-inferior e consequentemente perceber se as exodontias dos
terceiros molares inferiores seriam uma opção de tratamento válida e justificada.
Material e Métodos: O estudo decorreu de forma observacional, transversal e
descritiva. Foram avaliadas ortopantomografia, telerradiografia de perfil e
modelos de gesso de pacientes que não tivessem feito uso de aparelhos
ortodônticos previamente ao estudo. As variáveis estudadas foram a idade, o
género, o padrão facial, a desarmonia dento-maxilar e a classe esquelética. Os
programas utilizados neste estudo foram o Nemoceph® NX 2017, o Nemotec
para recolher dados da telerradiografia de perfil e o programa SPSS for
Windows®, versão 27, SPSS, EUA – Estados Unidos da América para analisar
estatisticamente os resultados obtidos. Todas as análises estatísticas levaram
em consideração uma significância p=0,05.
Resultados: A amostra foi composta por 50 indivíduos (28 homens e 22
mulheres) entre os 18 e 64 anos. De todas as variáveis estudadas, foi encontrada
uma significância bastante relevante entre a classificação esquelética e o
apinhamento dentário (p=0,69), com as demais variáveis não foi obtida
significância de p<0,05.
Conclusão: O terceiro molar inferior não tem estatisticamente (p=0,244)
influência sobre o apinhamento dentário ântero-inferior, o que pode estar
relacionado com a amostra pequena utilizada neste estudo. Com o nosso estudo
concluímos que não existe indicação da extração do terceiro molar inferior com
o objetivo de evitar o apinhamento dentário ântero-inferior.
Introduction: The relationship between anterior-lower crowding and the mandibular third molar has always been an object of study and discussion for many professionals. Being able to identify a certain correlation between this tooth and crowding would be of great help in orthodontic treatment. Objective: To study the relationship between mandibular third molars and crowding and to determine whether mandibular third molar extractions would be a valid and justified treatment option. Material and Methods: The study was observational, cross-sectional, and descriptive. Orthopantomography, lateral cephalometric radiographs and plaster models of patients who had not used orthodontic appliances prior to the study were evaluated. The variables studied were age, gender, facial pattern, dentomaxillary disharmony, and skeletal class. The programs used in this study were Nemoceph® NX 2017, Nemotec to collect data from the profile teleradiographs and the SPSS for Windows®, version 27, SPSS, USA - United States of America program to statistically analyse the results obtained. All statistical analyses took into consideration a significance p=0.05. Results: The sample was composed of 50 individuals (28 males and 22 females) between the ages of 18 and 64 years. Of all the variables studied, a very relevant significance was found between skeletal classification and dental crowding (p=0.69), with the other variables no significance of p<0.05 was obtained. Conclusion: The third molar does not have statistically significant influence (p=0.244) on crowding, which may be related to the small sample used in this study. With our study we conclude that there is no indication for extraction of mandibular third molars to avoid crowding of the anterior-inferior teeth.
Introduction: The relationship between anterior-lower crowding and the mandibular third molar has always been an object of study and discussion for many professionals. Being able to identify a certain correlation between this tooth and crowding would be of great help in orthodontic treatment. Objective: To study the relationship between mandibular third molars and crowding and to determine whether mandibular third molar extractions would be a valid and justified treatment option. Material and Methods: The study was observational, cross-sectional, and descriptive. Orthopantomography, lateral cephalometric radiographs and plaster models of patients who had not used orthodontic appliances prior to the study were evaluated. The variables studied were age, gender, facial pattern, dentomaxillary disharmony, and skeletal class. The programs used in this study were Nemoceph® NX 2017, Nemotec to collect data from the profile teleradiographs and the SPSS for Windows®, version 27, SPSS, USA - United States of America program to statistically analyse the results obtained. All statistical analyses took into consideration a significance p=0.05. Results: The sample was composed of 50 individuals (28 males and 22 females) between the ages of 18 and 64 years. Of all the variables studied, a very relevant significance was found between skeletal classification and dental crowding (p=0.69), with the other variables no significance of p<0.05 was obtained. Conclusion: The third molar does not have statistically significant influence (p=0.244) on crowding, which may be related to the small sample used in this study. With our study we conclude that there is no indication for extraction of mandibular third molars to avoid crowding of the anterior-inferior teeth.
Description
Keywords
Terceiro molar Erupção dentária Má oclusão Apinhamento dentário Third molar Tooth eruption Malocclusion Tooth crowding