Accuracy in the Diagnosis of the Mental Nerve Loop. A Comparative Study Between Panoramic Radiography and Cone Beam Computed Tomography/ Precision en el Diagnostico del Bucle del Nervio Mental. Estudio Comparativo entre Radiografia Panoramica y Tomografia Computadorizada de Haz Conico

Dental implant and chin osteotomy are executed on the mandible body and the mental nerve is an important anatomical limit. The aim of this research was to know the position of the mental nerve loop comparing result in panoramic radiography and cone beam computed tomography. We analyzed 94 hemimandib...

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Bibliographic Details
Published in:International journal of morphology 2015-03, Vol.33 (1), p.327
Main Authors: do Couto-Filho, Carlos Eduardo Gomes, de Moraes, Paulo Hemerson, Alonso, Maria Beatriz Carrazzone, Haiter-Neto, Francisco, Olate, Sergio, de Albergaria-Barbosa, Jose Ricardo
Format: Article
Language:Spanish
Subjects:
Activities of daily living
CAT scans
Dental implants
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Summary:Dental implant and chin osteotomy are executed on the mandible body and the mental nerve is an important anatomical limit. The aim of this research was to know the position of the mental nerve loop comparing result in panoramic radiography and cone beam computed tomography. We analyzed 94 hemimandibles and the patient sample comprised female and male subjects of ages ranging from 18 to 52 years (mean age, 35 years) selected randomly from the database of patients at the Division of Oral Radiology at Piracicaba Dental School State University of Campinas; the anterior loop (AL) of the mental nerve was evaluated regarding the presence or absence, which was classified as rectilinear or curvilinear and measurement of its length was obtained. The observations were made in the digital panoramic radiography (PR) and the cone beam computed tomography (CBCT) according to a routine technique. The frequencies of the AL identified through PR and CBCT were different: in PR the loop was identified in 42.6% of cases, and only 12.8% were bilateral. In contrast, the AL was detected in 29.8% of the samples using CBCT, with 6.4% being bilateral; Statistical comparison between PR and CBCT showed that the PR led to false-positive diagnosis of the AL in this sample. According to the results of this study, the frequency of AL is low. Thus, it can be assumed that it is not a common condition in this population. KEY WORDS: Panoramic radiography; Cone-beam computed tomography; Mental nerve loop. Implantes dentales y la osteotomia de menton son realizadas en el cuerpo mandibular y el nervio mental es un importante limite anatomico. El objetivo de esta investigacion es conocer la posicion del bucle del nervio mental comparando resultados entre radiografia panoramica y tomografia computadorizada de haz conico (TCHC). Fueron analizadas 94 hemimandibulas; la muestra de pacientes de sexo feminino y masculino con edades fluctuando entre 18 y 52 anos (edad media, 35 anos) seleccionados de la base de datos de pacientes de la Division de Radiologia de la Facultad de Odontologia de Piracicaba, Universidad Estadual de Campinas; el bucle anterior (BA) del nervio mental fue evaluado segun su presencia o ausencia, el cual fue clasificado como rectilineo o curvilineo obteniendose el largo total del bucle; las observaciones fueron realizadas en radiografias panoramicas digitales (RP) y en TCHC de acuerdo a tecnicas de rutina. La frecuencia de identificacion del BA en RP y TCHC fue diferente: en la PR
ISSN:0717-9367