Journal article
Thickness of buccal bone in the mandible and its clinical significance in mono-cortical screws placement. A CBCT analysis


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Publication Details
Author list: Al-Jandan BA, Al-Sulaiman AA, Marei HF, Syed FA, Almana M
Publisher: Elsevier
Publication year: 2013
Journal: International Journal of Oral and Maxillofacial Surgery
Journal name in source: INTERNATIONAL JOURNAL OF ORAL AND MAXILLOFACIAL SURGERY
Volume number: 42
Issue number: 1
Start page: 77
End page: 81
Number of pages: 5
ISSN: 0901-5027
Web of Science ID: 000315013500013
PubMed ID: 22824249
Scopus ID: 84872021192


The aim of this study was to determine the safest length of monocortical screws that can be inserted for the treatment of mandibular fractures following Champy's technique. Fifty cone-beam computed tomography (CBCT) scans of hemi-mandibles were studied. Linear measurements were taken from the buccal cortical plate to the tooth apex, from the canine to the second premolar, and from the buccal cortical plate to the tooth apex and the inferior alveolar canal in the molar area. The minimum values of the horizontal distances both at the level of the apex and the inferior alveolar canal at the second molar were found to be 4 mm, which is greater than those of the first molar. At the canine; first premolar and second premolars, the minimum values of the horizontal distances at the level of the apex was found to be 2 mm, 2.33 mm and 2 mm, respectively. Stabilizing miniplates using 4 mm screws both at the level of the apex and the inferior alveolar canal is safe in the second molar area, anterior to this, there is a risk of injury to tooth root and inferior alveolar nerve.

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Keywords
buccal bone thickness, cone beam computed tomography, mandible fracture, miniplates, monocortical screws, root injury

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Last updated on 2019-09-10 at 15:20