하악 제3대구치의 존재여부 및 매복양상이 하악 우각부 골절과 과두 골절의 발생에 미치는 영향
The impact of the presence and aspect of mandibular third molars to the mandibular angle and condyle fractures
이영주, 송윤정, 홍순민, 채상식, 강현우, 최동주, 박준우,
소속 상세정보
이영주 ( Lee Young-Joo ) - 한림대학교 의과대학 구강악안면외과학교실
송윤정 ( Song Yun-Jung ) - 한림대학교 의과대학 치과보존학교실
홍순민 ( Hong Soon-Min ) - 뉴페이스 치과병원
채상식 ( Chae Sang-Sik ) - 한림대학교 대학원 의학과
강현우 ( Kang Hyeon-Woo ) - 한림대학교 대학원 의학과
최동주 ( Choi Ding-Ju ) - 한림대학교 의과대학 구강악안면외과학교실
박준우 ( Park Jun-Woo ) - 한림대학교 의과대학 구강악안면외과학교실
KMID : 0362720120500090566
Abstract
Purpose : This study evaluated the impact of the presence and aspect of mandibular third molars to the mandible angle fracture or condyle fractures in Korean.
Materials and Methods : A retrospective study was designed for patients attending the division of Oral and Maxillofacial Surgery, Kang-dong sacred heart hospital for treatment of mandibular fracture from January 2006 to September 2010. The primary variable was the presence of mandibular third molar and the secondary variable was the aspects of third molar impaction. Mandibular third molars were classified by the impaction depth and the available space as Pell & Gregory system. Outcome variables were the presence of mandibular angle fracture or condyle fracture. Also the source of trauma, age, sex were studied. Hospital charts, radiographs were used for study. Statistic analysis was done with descriptive statistics, the X2-test, linear-by-linear association. P value under 0.05 was considered significant statistically.
Results : The number of involved patients was 86. The ratio of male to female patients was about 9:1 for angle fracture and 7:3 for condyle fracture. The most common source of trauma was assault for angle fracture and fall down for condyle fracture. The presence of mandibular third molar increased frequency of angle fracture and decreased condyle fracture with larger impaction depth. But available space of mandibular third molar did not show high association with angle or condyle fractures.
Conclusion : Preventive extraction of mandibular third molar is recommended for patients with high risk of angle fracture. Male patients at their third decade or martial artists, police officer could be the case. But it is not recommended for patients with low risk of angle fracture and high risk of condyle fracture relatively. Elder female patients without any symptom on their third molar could be the case.
키워드
Mandible fracture; Molar; third
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