Cone-beam Computed Tomography Measurement of the Position of the Inferior Alveolar Nerve Canal in Mandibular Prognathism

• 발행기관: 대한구강악안면외과학회
• 저자명: Sung-Hun Yun Ji-Young Park Young-Kyung Ko Je-Uk Park Sung-Woon Pyo
• 간행물 정보: 『대한구강악안면외과학회지』대한구강악안면회과학회지 제35권 제1호, 26~30쪽, 전체 5쪽
• 주제분류: 의약학 > 내과학
• 파일형태: PDF
• 발행일자: 2009.02.28

영문 초록

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.

키워드

Cone beam computed tomography Inferior alveolar nerve Mandibular prognathism