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개방교합 경향을 갖는 성인 여성 환자들의 보상양상에 관한 연구
유임학(Eem-Hak Yoo),김동언(Dong-Un Kim) 대한치과교정학회 2002 대한치과교정학회지 Vol.32 No.1
개방교합 경향을 갖고 있으나 보상작용 등에 의해 전치부 개방교합을 보이지 않는 성인 여성환자들의 보상양태를 관찰하여 진단 및 치료계획 수립에 도움을 주고자 본 연구를 시행하였다. 피개교합 심도지수(ODI)가 66이하이며 전치부 개방교합을 나타내는 증례 (50명)를 대조군으로, 피개교합 심도지수(ODI)가 66이하이나 보상작용에 의하여 전치부 개방교합을 보이지 않는 증례(55명)를 실험군으로 하였다. 대조군과 실험군의 평균연령은 각각 23.88 ± 4.53세와 24.7 ± 6.20세이었다. 측모두부방사선 사진을 촬영하였으며 두 군간의 형태학적 치아를 비교하기 위해 41개 항목에 대한 Mx1-SN, Mx1-FH, Mx1-NA(mm), Mx1-APo, PP to Mx6, Mn1-NB(degree), Mn1-NB(mm)에서 통계학적인 유의차가 나타났다. 실험군에서는 감소된 lower face heifht, N-Me, ANS-Me, ANS-Me/N-Me ratio와 상하악전치의 설측 경사 및 후퇴, 대조군에서는 상악 구치의 과맹출이 관찰되었다. The purposes of this study were to observe the compensation pattern of human female adults with openbite tendency and to provide the decision criteria of the diagnosis and treatment planning for those patients. Fifty patients with anterior openbite and fifty-five patients without anterior openbite patients were selected as a control and a test group. ODI of the all patients was below 66. Mean ages of the control and the test group were 23.88 ± 4.53 and 24.7 ± 6.20 years, respectively. Lateral cephalograms were taken and forty-one variables were measured. To identify the morphological differences between the groups, statistical analyses were performed. Statistically significant differences were found in the measured variables of lower face height, N-Me, ANS-Me, ANS-Me/N-Me ratio, Mxl-SN, Mxl-FH, Mxl-NA(mm), Mxl-APo, PP to Mx6, Mnl-NB(degree), Mnl-NB(mm). The test group showed decreased lower face height, N-Me, ANS-Me, ANS-M -Me ratio, more uprighted and retruded maxillo-mandibular incisors. Overeruption of the maxillary first molar was found in the ontrol group.
박정하(Jung-Ha Park),황경균(Kyung-Gyun Hwang),김용재(Yong-Jae Kim),우순섭(Soon-Seop Woo),유임학(Eem-Hak Yoo),심광섭(Kwang-Sup Shim) 대한구강악안면외과학회 2003 대한구강악안면외과학회지 Vol.29 No.4
The contour of mandibular angle is important for facial esthetics in the oriental population, because the wide and square face is thought to have had an unhappy life. A prominent mandibular angle produces a characteristics quardrangle, coase, and muscular appearance. So, uni- or bi-lateral mandibular angle reduction is usually performed. However, there is little guideline for bi-lateral angle reduction. So, this study was to investigate the pattern of Korean mandibular angle for bi-lateral mandibular angle reduction as guideline. This study was included 66 adult men and women over 19 years old who are having the normal mandibular angle. We measured the posterior border, angle, and inferior border of mandible using cephalometric view. The results of study was as followed : 1. The ratio of posterior mandible was 96.6, 97.3% in male, and 103.0, 106.0% in female. 2. The ratio of mandibular angle(R1-Go/R1-R2) was 120.2% in male, and 117.3% in female. 3. The ratio of inferior mandible(D5, 6, 7, E, F, G/D4) was 97.3, 90.9, 79.5, 65.2, 57.8, 46.9% in male, and 98.5, 91.2, 80.5, 67.6, 59.1, 50.2 % in female. The results of this study should be useful to decide accurate amount of reduction.
기능성 및 골격성 전치부 반대교합 환자의 형태학적 차이점에 관한 연구
유임학,김태선 대한치과교정학회 2001 대한치과교정학회지 Vol.31 No.4
본 연구의 목적은 기능성 및 골격성 전치부 반대교합 환자에 대한 형태학적 차이점을 비교하는 것이다. 전치부의 기능성 반대교합을 보이는 28증례와 골격성 반대교합을 보이는 31증례를 각각 실험군과 대조군으로 삼았다. 실험군자 대조군의 평균연령은 9.6±1.8세와 9.8±1.9세이었다 측모두부방사선 사진을 촬영하였으며 두 군간의 형태학적 차이를 비교하기 위해 49개 항목에 대한 계측 및 통계학적인 분석을 시행하였다. 계측항목 중 cranial deflection, maxillary depth, ANB, convexty, NPo-AB, APDI, Mx 1-SN, Mx 1-NA angle, Mx 1-NA, Md 1-NB angle and Md 1-NB에서 통계학적인 유의차가 나타났다. 실험군에서는 Class III로의 성장 가능성, 상악골의 전방위치, 상하악골간의 전후방적 부조화 감소, 상악 중절치의 후퇴, 직립 및 하악 중절치의 전돌, 순측경사를 보였다. (주요 단어 : 형태학적 차이, 기능성 전치부 반대교합, 골격성 전치부 반대교합) The purpose of this study was to compare the dento-skeletal characteristics between functional and skeletal anterior cross-bite patients. Twenty-eight functional anterior cross-bite patients and thirty-one skeletal anterior cross-bite patients were selected as a test and a control group. Mean ages of the test and the control group were 9.6±1.8 and 9.8±1.9, respectively. Lateral cephalograms were taken. Forty-nine cephalometric variables were measured and statistical analysis was performed to find the morphological differences between the groups. Statistically significant differences were found in the cephalometric variables of cranial deflection, maxillary depth, ANB, convexity, NPo-AB, APDI, Mx 1-SN, Mx 1-NA angle, Mx 1-NA, Md 1-NB angle and Md 1-NB. The test group showed more Class III growth potential, more protruded maxilla, lesser maxillo-mandibular difference, more uprighted and retruded maxillary central incisor, more labially tipped and protruded mandibular central incisor. ※ Key words : Morphological differences, Funtional anterior cross-bite, Skeletal anterior cross-bite