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STUDY ON THE ANATOMICAL POSITION OF MANDIBULAR CANAL USING COMPUTED TOMOGRAPHY IN MANDIBULAR PROGNATHISM PATIENTS  

Lee, Dong-Hyun (Department of Oral & Maxillofacial Surgery, Daegu Fatima Hospital)
Kim, Jae-Won (Department of Oral & Maxillofacial Surgery, Daegu Fatima Hospital)
Lee, Su-Youn (Department of Oral & Maxillofacial Surgery, Daegu Fatima Hospital)
Kim, Jae-Hyun (Department of Oral & Maxillofacial Surgery, Daegu Fatima Hospital)
An, Sang-Heon (Department of Oral & Maxillofacial Surgery, Dongguk University Gyeongju Hospital)
Lee, Sang-Han (Department of Oral & Maxillofacial surgery, School of Dentistry, Kyungpook National University)
Jang, Hyun-Jung (Department of Oral & Maxillofacial surgery, School of Dentistry, Kyungpook National University)
Publication Information
Maxillofacial Plastic and Reconstructive Surgery / v.31, no.6, 2009 , pp. 510-518 More about this Journal
Abstract
Purpose: In this study, we analyzed and compared the anatomical position of the mandibular canal in normal occlusion and mandibular prognathism patients. Patients and Methods: Computed tomography image from 58 patients were divided into normal occlusion group and mandibular prognathism group, and each measurement were taken in the each measuring points(2nd premolar, 1st molar, 2nd molar, 3rd molar, ramus). Measurements were statistically analyzed by student's t-test. Results: BC (Thickness of the buccal cortex) value was 2.3~2.7 mm, CB (Distance from the canal to the lingual aspect of the buccal cortex) value was 1.3~4.3 mm, MC (Diameter of the canal) value was 3.2~3.8 mm, LI (Distance from the canal to the lingual aspect of the lingual cortex) value was 2.0~3.7 mm, TM (Thickness of the total mandible) value was 9.5~12.9 mm and CM (Distance from the canal to the inferior border of the mandible) value was 6.9~17.5 mm. Conclusion: In the comparison between two groups, there was statistically significant difference in CB value of 2nd, 3rd molar between normal occlusion and mandibular prognathism, and other value in the rest of the measuring points didn't show statistically significant difference.
Keywords
Mandibular canal; Computed tomography; Mandibular prognathism;
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Times Cited By KSCI : 1  (Citation Analysis)
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