抄録
From 1976 to 1984, 126 cases with angular fractures of the mandible were treated in Department of Oral Surgery, Sapporo Medical College Hospital. These were analysed clinicostatistically and the following results were obtained:
1) Age of patients distributed widely with peak of second and first (74.6%).
2) Fight injuries were the most frequent (32.5%) followed by traffic accidents (27.8%), athletic injuries (18.3%), work accidents (11.9%), and falls (9.5%).
3) Wisdom teeth were 88.3% of the line of angular fractures of the mandible and the extraction of wisdom teeth in the line of angular fractures of the mandible were carried out in 46.0%.
4) The procedure of wisdom teeth in the line of angular fractures of the mandible must be decided for each individual case, i. e., vitality, periodontal disease, luxation and positions of these teeth and degree of displacement of the bone fragment.
