3. 치근단 낭종의 침범은 치근단 부위를 포함한 경우가 전체의 92.2%로 가장 많았으며, 난형 및 타원형인 원형의 치근단 낭종이 전체의 88.7%이었고, 치근단 낭종을 둘러싸고 있는 완전한 과골 변연이 있는 경우가 전체의 66.8%이었다.
4. 치근단 낭종에 의해서 침범된 하나 또는 그 이상의 치근 흡수가 있는 경우가 전체의 55.2%이었으며, 침범된 하나 또는 그 이상의 치아 이동이 있는 경우가 전체의 23.1%이었다.
CLINICO-RADIOLOGICAL STUDY OF RADICULAR CYST OF THE JAW
Sung Youn Choi, D.D.S.
Department of dental science, Graduate School, Yonsei University
(Directed by Associate Prof. Han Pyong Kim, D.D.S., M.S.D., Ph.D.)
The author analysed clinically and radiologically 319 radicular cysts which were
proven histologically in Infirmary College of Dentistry Yonsei University and Seoul
National University Hospital from 1965 to 1983, and which occurred in 167 males and
139 females between the ages of 6 and 70.
This analysis was undertaken to discover the frequency and distribution of the
radicular cysts with regard to the age and sex, the chief complaints of the
patients, the regions, the radiographical appearances, the tooth changes, and the
anatomical structures involved by the lesions.
The obtained results were as follows:
1. The most frequently involved age group for the radicular cysts was the third
decade of the patients, and the greatest number 69.9 per cent occurred between the
ages of 11 and 40 years. The statistical analysis did not show any significant
difference between male and female(P>0.05).
2. The frequently involved region for the radicular cysts was orderly the
maxillary anterior region(44.9 per cent), the mandibula. anterior region(15.9 per
cent), the maxillary premolar region(14.8 per cent), and the mandibular premolar
region(11.0 per cent). The maxillo-mandibular ratio of the radicular cysts was
about 7:3. The statistical analysis did not show any significant difference between
right and left sides(P>0.05).
3. The greatest number was 92.2 per cent, which were involved in apical portions
of the radicular cysts, 88.7 per cent of the radicular cysts were found in the
round shapes which were oval and elliptical, and 66.8 per cent of the radicular
cysts were observed with the completely hyperostotic borders.
4. The radicular cysts caused the root resorption in 55.2 per cent and the
migration of the involved tooth or teeth in 23.5 per cent respectively.
[영문]
The author analysed clinically and radiologically 319 radicular cysts which were proven histologically in Infirmary College of Dentistry Yonsei University and Seoul National University Hospital from 1965 to 1983, and which occurred in 167 males and
139 females between the ages of 6 and 70.
This analysis was undertaken to discover the frequency and distribution of the radicular cysts with regard to the age and sex, the chief complaints of the patients, the regions, the radiographical appearances, the tooth changes, and the anatomical structures involved by the lesions.
The obtained results were as follows:
1. The most frequently involved age group for the radicular cysts was the third decade of the patients, and the greatest number 69.9 per cent occurred between the ages of 11 and 40 years. The statistical analysis did not show any significant
difference between male and female(P>0.05).
2. The frequently involved region for the radicular cysts was orderly the maxillary anterior region(44.9 per cent), the mandibula. anterior region(15.9 per cent), the maxillary premolar region(14.8 per cent), and the mandibular premolar region(11.0 per cent). The maxillo-mandibular ratio of the radicular cysts was about 7:3. The statistical analysis did not show any significant difference between right and left sides(P>0.05).
3. The greatest number was 92.2 per cent, which were involved in apical portions of the radicular cysts, 88.7 per cent of the radicular cysts were found in the round shapes which were oval and elliptical, and 66.8 per cent of the radicular cysts were observed with the completely hyperostotic borders.
4. The radicular cysts caused the root resorption in 55.2 per cent and the migration of the involved tooth or teeth in 23.5 per cent respectively.