Abstract
Introduction: The antero-lower dental crowding as well as its interaction with the lower third molar continues to be an object of study for several professionals. Identifying whether there is influence of this tooth with crowding is an asset for the study of orthodontic treatment plans. Objective: to find statistical results that relate the lower third molar to lower anterior dental crowding and the possible option of performing prophylactic extraction of lower third molars.Material and Methods: The study was observational, cross-sectional and descriptive. Orthopantomography, lateral teleradiography and plaster models of patients who had not made use of fixed apparatus prior to the study were evaluated. The variables studied were age, gender, facial pattern, dento-maxillary disharmony and skeletal class. The programs used in this study were Nemoceph® NX 2017, Nemotec to collect profile teleradiography data and SPSS for Windows®, version 27, SPSS, USA – United States of America to statistically analyze the results obtained. All statistical analyzes took into account a significance p=0.05. Result: 50 subjects were studied (29 women and 21 men) at a mean age of 23 years old (± 5.23 years). Of all the variables studied, a positive significance of the third molar with the Angle molar class (p=0.22) and inclination of the lower incisor (p=0.49) was found, with the other variables no significance was obtained in which p < 0.05. Conclusion: The mandibular third molar has no statistically significant (p=0.182) influence on mandibular anterior crowding, which may be related to the small sample size used in this study. Thus, concluding that there would be no indication of prophylactic extraction of the lower third molar in order to avoid antero-lower dental crowding.
Date of Award | 19 Jul 2022 |
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Original language | Portuguese |
Awarding Institution |
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Supervisor | Susana Paula Fernandes Machado da Silva (Supervisor) & Ana Paula Rodrigues Rocha Amorim Martins Peres (Co-Supervisor) |
Keywords
- Third molar
- Tooth eruption
- Malocclusion
- Tooth crowding
Designation
- Mestrado em Medicina Dentária