상·하악 전치부의 근관치료에 사용되는 시술길이 (Working Length)에 관한 통계학적 연구 = A STATISTICAL STUDY ON WORKING LENGTH OF UPPER AND LOWER ANTERIOR TEETH IN ENDODONTIC TREATMENT

다국어 초록 (Multilingual Abstract)

This study was undertaken to obtain the average canal length of upper & lower anterior teeth which was important in canal length measuring procedure of endodontic treatment. It was based upon 827 out-patients who had endodontic treatment on their upper & lower anterior teeth at the Department of Operative Dentistry, Dental Infirmary, Yonsei Medical Center from February, 1978 to June, 1984. The 1249 teeth of these patients were devided into sex and age groups. The root canal length of these teeth were measured.
The following results were obtained;
1. The mean root canal length of upper & lower anterior teeth were as follows;
Upper central incisors : 21.8mm
Upper lateral incisors : 21.0mm
Upper canines : 24.1mm
Lower central incisors : 18.6mm
Lower lateral incisors : 19.9mm
Lower canines : 22.6mm
2. There was no significant difference in root canal length between sex. (p>0.05)
3. There was no significant difference in toot canal length between age groups. (p>0.05)
4. The distribution of upper central incisors showed the highest distribution followed by upper lateral incisors and lower central incisors between 10 to 40 year old age groups, and there was no significant difference in the rest of the age groups.
There was no significant difference in sex distribution, which was 49.5% for males and 50.4% for females. The number of the upper anterior teeth was 74.3% of all the specimens and the lower anterior 25.7%, and 40.6% of all the specimens were upper central incisors.

목차 (Table of Contents)

• Ⅰ.서 론
• Ⅱ.연구재료 및 방법
• 가.연구재료
• 나,연구방법
• Ⅲ.연구성적
• Ⅳ.총괄 및 고찰
• Ⅴ.결 론