한국인 성인 하악공의 전후 위치적계측 및 방사선 계측학적 연구

A STUDY OF THE ANTEROPOSTERIOR POSITIONAL AND RADIOGRAPHICAL MEASUREMENT OF THE MANDIBULAR FORAMEN OF THE KOREAN ADULT

It is extreamly important to understand the correct anatomical position of mandibular foramen in surgery of maxillofacial anomalities. The study has been conducted on 66 dried mandibles of Korean adults to determine the anteroposterior relation ship of the mandibular foramen and the location of the inferior alveolar canal. The following results were obtained. 1. The mandibular foramen was found to be located in the third quderent anteposteriorly. 2. The mean dimension from the anterior herder of the mandible to the anterior position of foramen was 16.80㎜, and from the posterior border of mandible to the posterior position of foramen was 8.90㎜. 3. The mean width of the mandibular foramen was 8.50㎜ with the range from 14.30㎜ to 3.30㎜. 4. The mean anterior demension from the midpoint of foramen was 20.66㎜ with the range from 9.20㎜ to 30.20㎜, and the mean posterior demension was 13.43㎜ with the range from 8.10㎜ to 25.10㎜. 5. The midpoint of mandibular foramen was located in posterior to the index line with mean demension of 1.01㎜. In 132 cases, 88 oases(66.6%) were located posteriorly, and only 44 cases(33.33%) were located anteriorly to the index line. 6. The inferior alveolar canal runs nearly midpoint of the buccolingual demension at predetermined index line. The mean distance from the inferior alveolar canal to the medical surface of mandible was 7.26㎜, and to the lateral surface of mandible was 7.67㎜.