Premium
Inferior alveolar canal course: a radiographic study
Author(s) -
Liu Tie,
Xia Bing,
Gu Zhiyuan
Publication year - 2009
Publication title -
clinical oral implants research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.407
H-Index - 161
eISSN - 1600-0501
pISSN - 0905-7161
DOI - 10.1111/j.1600-0501.2009.01736.x
Subject(s) - radiography , magnification , molar , medicine , mandible (arthropod mouthpart) , panoramic radiograph , orthodontics , dentistry , radiology , computer science , botany , biology , computer vision , genus
Objectives: To describe the morphology and course of the inferior alveolar canal (IAC) as it appears in digital panoramic radiographs. Materials and methods: Three hundred and eighty‐six digital rotational panoramic radiographs (OPG) were studied using the Clinview Software (6.1.3.7 version, Instrumentarium). Among the 386 radiographs, 86 radiographs with 5‐mm steel balls were used to calculate the magnification. Results: The average magnification of radiographs in this study was 7.24±7.55%. The course of IAC as seen in the panoramic radiograph may be classified into four types: (1) linear curve, 12.75%, (2) spoon‐shaped curve, 29.25%, (3) elliptic‐arc curve, 48.5%, and (4) turning curve, 9.5%. On panoramic radiographs, the IAC appeared closest to the inferior border of the mandible in the region of the first molar. In relation to the teeth, on panoramic radiographs, the IAC appeared closest to the distal root tip of the third molar and furthest from the mesial root tip of the first molar. Conclusion: In the OPG, there are four types of IAC: linear, spoon shape, elliptic‐arc, and turning curve. The data found in the study may be useful for dental implant, mandibule surgery, and dental anesthesia. The limitations of the panoramic radiograph in depicting the true three‐dimensional (3D) morphology of the IAC are recognized, computed tomography (CT) and cone beam (CB)3D imaging being more precise.