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하악골 실험병소에 관한 방사선학적 연구
EXPERIMENTAL STUDY OF ARTIFICIALLY PRODUCEDBONE LESIONS IN HUMAN MANDIBLE -Radiologic and Densitometric Eva1uation-

치과방사선 1987년 17권 1호 p.107 ~ 122

이영호, 김종배,

소속 상세정보

이영호 ( ) - 서울대학교 치과대학 구강악안면방사선학
김종배 ( ) - 서울대학교 치과대학 치과방사선학교실

KMID : 0378219870170010107

Abstract

8개의 하악골에서 얻은 57개 골절편에 형성한 131예의 실험병소에 대한 방사선학적 분석
및 농도분석결과 다음과 같은 결론을 얻었다.
1. 41.3%(54예)에서 해면골내 병소의 확인이 가능하였다.
2. 치근단 병소가 일반 골내 병소보다 해면골내에서의 확인률이 높았다.
3. 치근단 병소의 경우 대구치병소에서 해면골내 병소확인률이 가장 높았으며, 일반 골내
병소의 경우 치조골부위 병소가 하악체하방부 병소에 비해 발견이 용이하였다.
4. 75.6%(103예)에서 치밀골 침범없이도 병소확인이 가능하였다.
5. 육안적으로 방사선학적 변화를 판독할 수 없는 해면골내 병소의 변화상을 ,농도계를 사
용함으로써 정확히 측정할 수 있었으며, 특히 일반 골내병소에서의 해면골내 변화상을 관찰
하는데 있어 유용하였다.
#초록#
The purpose of this study was three-fold: to reexamine whether periapical and central
lesions can be detected on the radiograph when they are in the cancellous bone, to
investigate regional differences in radiographic visualization of the lesion, and to compare
the interpretation of radio-graphs by densitometric analysis with the visual interpretation
of the same radiographs.
Forty-nine apical lesions and eighty-two central lesions were made in 8 mandibles
and radio-graphed serially while being enlarged and deepened. All radiographs were
evaluated by three dental radiologists. Each lesion was scored of 3 to 0, based on the
radiographic appearances.
Special radiographs of 15 apical and central lesions were analysed by densitometer and
the results were compared with the scores which were previously assigned by three
examiners.
From this study the following conclusions could be drawn;
1. Experimental lesions confined to cancellous bone were detected on the radiographs in
41.3% of the cases.
2. Visualization of periapical lesions in cancellous bone was more apparent than that of
central lesions in cancellous bone.
3. Visualization of the periapical lesions confined to cancellous bone was highest in
molar teeth, and detection of the central lesions in alveolar portion was easier than
those in lower portion of mandibular body area.
4. It was possible to detect the experimental lesions without cortical plate involvement
in 78.6% of the all lesions.
5. Densitometric analysis of radiographs could reproducibly distinguish bone changes,
especially of central lesions in cancellous bone.