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前齒長徑에 關한 X-線學的硏究
ROENTGENOLOGIC INVESTIGATIOINS FOR THE ANTERIOR TOOTH LENGTH

치과방사선 1973년 3권 1호 p.53 ~ 57

조원표,

소속 상세정보

조원표 ( ) - 서울대학교 대학원 치의학과 치과방사선학 전공

KMID : 0378219730030010053

Abstract

The author measured the length of crown, root and tooth on the filems which was taken by intraoral bisecting technic with meash plate on the films.
The films were taken from the dry skulls, dentiform and patients who had to be removed their upper incisors and the other patients who adimitted for dental care.
rom this serial experiment the results was made as follows;
1. By using the film distortion in the oralcavity, the real tooth length can be measured easily on the film surfaces.
2. It can be avoided the film distortion in the oral cavity when taking the film using the mesh plate and film together.
3. When measuring the film, length of crown was elongated and length of root was shortened.
4. When using the well-trained bisecting technic, the real tooth length can be measured directly on the intraoral film.