Diagnostic accuracy of cone-beam CT compared with panoramic images in predicting retromolar canal during extraction of impacted mandibular third molars
Med. oral patol. oral cir. bucal (Internet)
; 20(1): e74-e81, ene. 2015. ilus, tab
Article
en En
| IBECS
| ID: ibc-132060
Biblioteca responsable:
ES1.1
Ubicación: BNCS
ABSTRACT
OBJECTIVES:
The clinical significance of the existence of a retromolar canal and of its neurovascular content is not yet clear. The aim of the present study was to assess the visibility, diameter and course of the mandibular retromolarcanal(MRC) using cone beam computed tomography (CBCT) scan -had been taken for pre-operative radiographic evaluation of impacted mandibular third molars- compared to panoramic radiographs. StudyDESIGN:
Subjects eligible for study enrollment were those who underwent preoperative CBCT scan for the extraction of impacted mandibular third molars were determined to be extremely close to the mandibular canal on panoramic radiographs. Radiographs were screened for the presence and course of retromolar canals, and linearmeasurements.RESULTS:
947hemimandibles in 632 patients were examined. A total of 253 MRCs (144 left, 109 right) were detected with CBCT images (26.7%). Only 29 of these canals were also seen on the corresponding panoramic radiographs. Most MRCs had a vertical course (type VI, 28.46%), followed by slightly curved (type I, 26.09%). The visibility of the MRC on the OPGs, according to the increase in the diameter, was not statistically significant for both sides(p >.05).Statistically difference were found for the width at the point of origin from the mandibular canal (p .037),the mean distance from the MRC to the second molar (p .042) and height of MRC when compared the gender.CONCLUSIONS:
The findings suggest that the MRC isn't a rare anatomical structure. This study therefore clearly establishes the incidence and importance of the MRC. The detection of the presence of the MRC using CBCT maybe crucial for extraction of mandibular third molars
Texto completo:
1
Colección:
06-national
/
ES
Base de datos:
IBECS
Asunto principal:
Extracción Dental
/
Diente Impactado
/
Radiografía Dental
/
Mandíbula
/
Tercer Molar
Tipo de estudio:
Diagnostic_studies
/
Etiology_studies
/
Prognostic_studies
/
Risk_factors_studies
Límite:
Humans
Idioma:
En
Revista:
Med. oral patol. oral cir. bucal (Internet)
Año:
2015
Tipo del documento:
Article