韓國人 乳齒列期 兒童의 機能的 峻合分析에 關한 硏究
A Study on the Functional Occlusal Analysis of the Deciduous Dentition in Korean Children
소속 상세정보
최남기(崔南基)/Choi Nam-Ki
양규호(梁圭鎬)/Yang Kyu-Ho
KMID : 0358919870140010001
Abstract
結 論
건강하고 치아 우식증이 없으며 하악기능장애가 없는 만 3년 5개월부터 6년 7개월된 유치
열기 아동 50명 (남자 20명, 여자 30명)을 대상으로 頭部를 背側屈曲 (dorsal flexion) 하는
동안 긴장성경반사에 대한 筋電圖를 관찰하고 경석고모형과 두부방사선규격사진 계측을 시
행하고 상호 연관성을 조사하여 다음과 같은 결과를 얻었다.
#초록#
The present study was aimed to clarify a desirable occlusion of the deciduous
dentition by evaluating the relationship among cephalometric, cast model and
electromyographic analyses on tonic neck reflex. The subjects examined were fifty
children (20 males and 30 females) with deciduous dentition from 3.5 to 6.7 years of age
and without dental caries and any mandibular functional disorder.
The following results were obtained:
1. In the electromyogram of masticatory muscles on tonic neck reflex during dorsal
flexion, 20 children were classified as unbalanced type showing the difference between
right and left side muscles and 30 children as balanced type showing no bilateral
difference.
2. Unbalanced type showed greater values than balanced type in terms of overbite,
overjet, and vertical overlapping of deciduous canine, and lower values than balanced
type in terms of the ratio of the lower to the upper arch length.
3. Ho difference was noted between two types in terms of terminal plane, occlusal
wear and sagittal relationship of deciduous canine.
4. In the angular measurement of cephalometric analysis, ANB angle showing the
anteroposterior relationship of maxillomandibular basal bone was greater in unbalanced
type than that of balanced type.
5. In the linear ineasurelnent, the mandibular length of unbalalanced type was shorter
than that of balanced type.
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