Relationship between mandibular condyle and angle fractures and the presence of mandibular third molars
마득현, 김수관, 문성용, 오지수, 유재식,
소속 상세정보
마득현 ( Mah Deuk-Hyun ) - 조선대학교 치의학전문대학원 구강악안면외과학교실
김수관 ( Kim Su-Gwan ) - 조선대학교 치의학전문대학원 구강악안면외과학교실
문성용 ( Moon Seong-Yong ) - 조선대학교 치의학전문대학원 구강악안면외과학교실
오지수 ( Oh Ji-Su ) - 조선대학교 치의학전문대학원 구강악안면외과학교실
유재식 ( You Jae-Seek ) - 조선대학교 치의학전문대학원 구강악안면외과학교실
KMID : 0355620150410010003
Abstract
Objectives: We retrospectively evaluated the impact of mandibular third molars on the occurrence of angle and condyle fractures.
Materials and Methods: This was a retrospective investigation using patient records and radiographs. The sample set consisted of 440 patients with mandibular fractures. Eruption space, depth and angulation of the third molar were measured.
Results: Of the 144 angle fracture patients, 130 patients had third molars and 14 patients did not. The ratio of angle fractures when a third molar was present (1.26 : 1) was greater than when no third molar was present (0.19 : 1; odds ratio, 6.58; P<0.001). Of the 141 condyle fractures patients, the third molar was present in 84 patients and absent in 57 patients. The ratio of condyle fractures when a third molar was present (0.56 : 1) was lower than when no third molar was present (1.90 : 1; odds ratio, 0.30; P<0.001).
Conclusion: The increased ratio of angle fractures with third molars and the ratio of condyle fractures without a third molar were statistically signif-cant. The occurrence of angle and condyle fractures was more affected by the continuity of the cortical bone at the angle than by the depth of a third molar. These results demonstrate that a third molar can be a determining factor in angle and condyle fractures.
키워드
Bone fracture; Trauma; Tooth
원문 및 링크아웃 정보
등재저널 정보