한국인 상악 중절치의 교모에 관한 연구 = A Study on the attrition of maxillary central incisors in Korean

다국어 초록 (Multilingual Abstract)

This study was aimed to helf the construction of esthetic dental prosthesis by investigation of the factors affecting on the attrition position and attrition angle of maxillary central incisors.

Therefore, 158 complete cast of maxillary and mandibular extracted from the students
of K. junior college were subjected for this study.

And results through the study are as follows.

1. Through-out mesiodistal attrition area of the right central incisor were as follows.
1) It showed that square type arch and ovoid type arch is the highest frequence in
attrition of all incisal edge, and tapering type arch is the highest frequence in attrition
of distal area of incisal edge, by dental arch type, (p<0.05)
2) It showed that overlap of 1. Oxx below and 4. Ixx above is the highest frequ-ence in attrition of mesial area of incisal edge, and overlap of 1. 1-2m and 3. 1-4ra is the highest frequence in attrition of all incisal edge: and overlap of 2.1-3x is the highest frequence in attrition of distal area of incisal edge, by vertical overlap (p<0.01),​ and Horizontal overlap (p<0.001)
3) Sex, address, and incisal guide angle; did not affect significantly to throughout

2. Throughout mesiodistal attrition area of left central incisal were as follows.
1) It showed that square type arch and tapering type arch is the highest frequence in attrition of mesial area of incisal edge, and ovoid type arch is the highest frequence in attrition of all incisal edge, by dental arch type (p<0.001).
2) It showed that overlap of 1. Omx below is the highest frequence in attrition of mesial area of incisal edge, and overlap of 1.1-32 and 4. lmm above is the highest frequence in attrition of distal area of incisal edge, and overlap of 3. 1-4na is the high-est frequence in attrition of all incisal edge, by vertical overlap (p<0.001).
3) It showed that overlap of 4. Ona below is the highest frequence in attrition of mesial area of incisal edge, and overlap of 4. 1x above is the highest frequence in attrition of medium area of incisal area, by Horizontal overlap (p<0.001).
4) Sex, address, and dental arch type, did not affect significantly to throughout mesiodistal attrition, statistically.

3. Throughout labiolingual attrition area of right central incisor were as follows.
1) It showed that overlap of 2. Om below is the highest frequence in attrition of incisal area including labioincisal, and overlap of 2. luz above is the highest frequence
in attrition of linguoincisal area, by vertical overlap (p<0.05).
2) It showed that overlap of lux below and 2. I am above is the highest frequence in attrition of linguoincisal area and overlap 1. 1-2n is the highest frequence in attrition of incisal area including labioincisal, by Horizontal overlap (p<0.001).
3) It showed that incisal guide angle of 10 degree below, 31-50degree, and 71 degree above, is the highest frequence in attrition of linguoincisal area, and incisal guide angle of 11-30 degree, and 51-70 degree is the highest frequence in attrition of incisal area including labioincisal, by incisal guide angle (p <0.05).
4) Sex, address, and dental arch type, did not affect significantly to labioincisal mesiodistal attrition, statistically attrition, statistically.

4. Throughout labioincisal attrition area of left central incisal were as follows.
1) It showed that overlap of Ian below is the highest frequence in attrition of inci-sal area including labioincisal and overlap of 1. Ima above is the highest frequence in attrition of linguoincisal area, by vertical overlap<0.01) and Horizontal overlap (p<0.05).
2) It showed that incisal guide angle of 51-70 degree is the highest frequence in attrition of insisal area including labioincisal, and incisal guide angle of 50 degree below and 71 degree above is the highest frequence in attrition of linguoincisal area, by incisal guide Angle (p<0.001).
3) Sex, address, and dental arch type, did not affect significantly to labioincisal
attrition, satistically.

5. The average attrition angle of right central incisor were 25-12.49 degree.
It was as follow that attrition angle have a bigger than it of average of right central incisor. Square type and tapering type by dental arch type, and overlap of 2. I am above by vertical overlap, and Horizontal overlap, and incisal guide angle of 10 degree below, 31-50 degree, 70 degree above by incisal guide Angle.

6. The average attrition angle of left central incisal were 2512.40 degree. It was as follow that attrition angle have a bigger than it of average of left central incisal.
Tapering type arch by dental arch type, and overlap of 2. 1x above by vertical overlap and Horizontal overlap, and incisal guide angle of 31-50 degree, and 71 degree by incisal guide angle.

목차 (Table of Contents)

• I.序論​
• II. 연구방법
• 1. 연구재료
• 2. 연구방법
• 3. 분석방법
• III. 연구성적
• 1. 연구대상자의 특성별 분포
• 2. 근원심적 교모 부위​
• IV. 고찰
• 1. 연구 자료에 대하여
• 2. 연구 방법에 대하여
• 3. 연구 성적에 대하여
• V. 결론