Evaluación radiográfica de la profundidad de las terceras molares y su proximidad con el nervio dentario inferior en pacientes de 18 a 35 años atendidos en la clínica docente UPC
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AuthorsVera García, Leslie
AdvisorsZuiko Felix, Alfredo
Clasificación de Pell y Gregory
Universidad Peruana de Ciencias Aplicadas
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Citation1. Vera García L. Evaluación radiográfica de la profundidad de las terceras molares y su proximidad con el nervio dentario inferior en pacientes de 18 a 35 años atendidos en la clínica docente UPC [Internet]. Universidad Peruana de Ciencias Aplicadas (UPC); 2017. Available from: http://hdl.handle.net/10757/621903
AbstractObjective: To relate the depth of the third molars and their proximity to the inferior dental nerve according to the classifications of Pell and Gregory and Abu-el naaj in population that attend a Clinical Teaching Odontology of Lima, Peru. Materials and Methods: A retrospective, descriptive and cross-sectional study was carried out to analyze panoramic radiographs of patients seen at outpatient clinic during the years 2011-2016. The evaluation was performed by a single calibrated evaluator. Data were analyzed using frequencies and medians. To perform associations, the chi square test and fisher were used. Results: A sample of 978 patients was included, with a median age of 23 years (interquartile range: 21 to 25); 51.6% were women. The results found for the category with the highest risk of exodontia in the two classifications were: for Pell Gregory: 8.4% on the left side of the mandible. Abu-el- naaj: Type II B 2.2% right side and 3% left side of the mandible, Type III: 0% right and left side of the mandible. According to the two classifications, differences in depth were found for male gender (Pell and Gregory Class A: 30.4% vs. 26.8% female, p = <0.001). In addition, according to the association of both classifications referring to the proximity of the dental nerve was observed the type IIB of Abu-el naaj in greater relation with class B of Pell and Gregory 2.04%; p= <0.001. Conclusion: In the study, a higher prevalence of Class A was found: 30.4% in men, which presented lower third molar depth compared to women. In addition, a higher ratio of class B to type IIB was found.
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