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학술논문

구치부와 전치부의 교합상태에 관한 연구

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영문명
Occlusal Variations in the Posterior and Anterior Segments of the Teeth
발행기관
대한치과교정학회
저자명
이기수(Ki-Soo Lee) 정규림(Kyu-Rim Chung) 고진환(Jin-Hwan Ko) 구정회(Chung-Hoe Koo)
간행물 정보
『The Korean Journal of Orthodontics』제10권 제1호, 71~79쪽, 전체 9쪽
주제분류
의약학 > 기타의약학
파일형태
PDF
발행일자
1980.12.31
무료

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국문 초록

영문 초록

The purpose of this study was(1) to determine the prevalence of some causes by which dental occlusion might be affected, (2) to determine the prevalence of malocclusion, and types of molar, vertical incisor and horisontal incisor frlationships, and (3) to examine the sex difference in the prevalence ratios, and (4) to determint the between-examiner differences in asseassing types of dental occlusion. The material consisted of 1281 males and 811 females, total 2091 persons, aged 17 to 21 years. Tow examiners who were graduate students in the orthodontic course, examined independently dental occlusion of the material. Before calculating the statistics, the subjects consisted of 156 males and 164 females, total 320 persons, having any one or more causes suspected to affect dental occlusion, was eliminated. Than the remained subjects, 1124 males and 647 females, total 1771 persons, were assessed. The results were as follows 1. The prevalence of some causes by which dental occlusion might be affected was 15.32 per cent. The missing rate of any one or more first molars was 8.85 percent, that of any one or more teeth positioned anterior to the first molar was 3.83 per cent. The prevalence of crossbite of the first molat 0.48 per cent, that of retained primary teeth was 0.77 percent, and that of orthodontic treatment was 0.43 per cent. 2. The rate of between-examiner difference was 12.35 per cent in assessing the types of molar relationship, 18.86 percent in assessing the types of horziontal incisor relationship, and 26.37 percent in assessing the types of horizontal incisor relationship. 3. There was no sex difference in the prevalence ratios of the types of molar relationship . The pervalence of Class I molar relationship was 80.91 percert, that of Class II was 5.03, that of Class II subdivision was 4.01, percent, that of Class III was 5.99 percent and that of Class III subdivision was 4.07 percent. 4. In the prevalence of the types of horizontal incisor felationship, there were no sex differences except that of Class II division 2. The prevalence of Class I horizontal incisor relationship was 73.12 percent, that of Class II division 1 was 12.03 percent, that of Class II division 2 was 6.58 percent in male and 4.33 percent in female, and that of Class III was 9.09 percent. 5. In the pervalence of the types of vertical incisor relationship, there were no sex difference except that of deep bite. the prevalence of open bite was 2.20 per cent, that of edge-to-edge bite was 9.15 percent, that of normal bite was 76.34 percent, and that of deep bite was 14.15 percent in male and 9.12 percent in female. 6. There was no sex difference in the prevalence of malocclusion the prevalence of maloccusion was 82.67 percent and that of normal occlusion was 17.33 percent. 7. There was a tendedcy that when Class I molar relationship vhanged to Class II, incisor-ships were to be larger overjet or upright upper incisors and deep bite, but when that changed to Class III molar relationship, these were to be cross bite and openbite.

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APA

이기수(Ki-Soo Lee),정규림(Kyu-Rim Chung),고진환(Jin-Hwan Ko),구정회(Chung-Hoe Koo). (1980).구치부와 전치부의 교합상태에 관한 연구. The Korean Journal of Orthodontics, 10 (1), 71-79

MLA

이기수(Ki-Soo Lee),정규림(Kyu-Rim Chung),고진환(Jin-Hwan Ko),구정회(Chung-Hoe Koo). "구치부와 전치부의 교합상태에 관한 연구." The Korean Journal of Orthodontics, 10.1(1980): 71-79

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