Cone-beam computed tomography measurement of the position of the inferior alveolar nerve canal in mandibular prognathism.
- Author:
Sung Hun YUN
1
;
Ji Young PARK
;
Young Kyung KO
;
Je Uk PARK
;
Sung Woon PYO
Author Information
1. Department of Oral and Maxillofacial Surgery, College of Medicine, The Catholic University of Korea, Korea. spyo@catholic.ac.kr
- Publication Type:Original Article
- Keywords:
Cone beam computed tomography;
Inferior alveolar nerve(obstructive sleep apnea);
Mandibular prognathism
- MeSH:
Cone-Beam Computed Tomography;
Female;
Humans;
Male;
Mandibular Nerve;
Prognathism
- From:Journal of the Korean Association of Oral and Maxillofacial Surgeons
2009;35(1):26-30
- CountryRepublic of Korea
- Language:English
-
Abstract:
BACKGROUND AND OBJECTIVES: To determine the anatomic position of the inferior alveolar nerve (IAN) canal in patients with mandibular prognathism using the cone-beam CT (CBCT). MATERIALS AND METHODS: Fifty rami from 25 patients were evaluated. The images were taken by i-CAT and reconstructed 3-dimensionally using the Simplant 11 program. The linear distances between the IAN canal to the buccal cortex (a, a* and a**), from the IAN canal to the alveolar crest (b and b*) and the anterior margin (b**) and finally the buccal cortical thickness (c, c* and c**) were measured at three reference planes (VP, OP and HP). RESULTS: On the left side, the average distance of a, b and c were 7.12, 15.96 and 3.60 mm on the VP plane, respectively. On the OP, the distance of a*, b* and c* was 6.11, 8.83 and 2.63 mm. For the HP, the distance of a**, b** and c** was 4.84, 10.11 and 2.30 mm. On the right side, the distance of a, b and c, on the VP, was 7.10, 16.13 and 3.42 mm, respectively. On the OP, the distance of a*, b* and c* was 4.77, 8.75 and 2.68 mm. On the HP, the distance of a*, b* and c** was 4.55, 9.84 and 2.38 mm. Regarding the difference between genders, the distance in male's was longer than female's on the VP (p=0.019), and was thicker in males than females on the HP (p=0.002). CONCLUSION: The CBCT data provided accurate information about the location and course of the IAN.