하악과두 골절의 임상통계학적 연구

A CLINICAL AND STATISTICAL STUDY OF CONDYLAR FRACTURE OF MANDIBLE

This is a retrospective study on condylar fracture of mandible. The study based on a series of 112 patients who had treated for the fractures of mandibular condyle on KyungHee Dental Hospital from January , 1989 to August. 1997. We studied the age and sex distributions, causes of fractures, location of fractures and so on. The results as follows; 1. The ratio of male:female was 4:1, and the highest frequency of condylar fractures was registered among patients aged to 21 to 30 years. 2. The most common cause of condylar fracture was fall-down(47.7%), followed in incidence by direct-blow(27.9%) and traffic accidents(20.7%). 3. Subcondylar fracture had highest incidence(50%), and followed by condyle head(27.4%) and condylar neck(22.6%). 4. 9.7% of condylar fractures had occurred bilaterally, and in cases of bilateral condylar fractures, condyle head fracture(58.33%) was highest incidence. 5. Mandibular symphysis was most commonly involved in condylar fracture(63.4%), and 27.7% of condylar fractures had not any other mandibular fractures.