OBJECTIVE: @entity174 are not common and carry different clinical features when compared with adults. To clarify the differences of aetiology and patterns of @entity174 in paediatric @entity1 , a clinical retrospective analysis was performed. @entity1 : One hundred seventy-four paediatric @entity1 younger than 16 years of age treated in the First Department of Oral and Maxillofacial Surgery, Osaka University Dental Hospital during a 15-year period were analysed. STUDY DESIGN: Age, sex, @entity174 patterns, incidence, common locations of the mandibular @entity174 and treatment were studied according to the @entity1 ' charts and radiographs. RESULTS: The ratio of @entity1 to @entity1 was 2:1 and the largest age subgroup was 15-years old. The most common cause of injury was bicycle accidents (26%), followed by falls (25%). The distribution of causes and ages revealed that the incidence of the fall-related @entity130 decreased in @entity1 older than 10 years, and assaults became a common cause in @entity1 older than 12 years. The yearly distribution showed a decrease of the group between 6 and 10 years and of bicycle-related accidents in the last 5-year period (1992-1996). @entity174 were most common (56%), followed by @entity174 (31%). Condylar @entity174 was common in @entity1 younger than 14 years, especially in those below 6 years. @entity174 of the mandibular angle were the most common in those above 13 years. CONCLUSION: These results document that the aetiological characters and patterns of paediatric maxillofacial @entity174 gradually shifted towards those found in adolescents.

@entity174 : their aetiological characters and XXXX patterns.

@entity1 :: ('9606', 'Species') :: ['children', 'patients', 'PATIENTS', 'girls', 'boys'] @entity130 :: ('MESH:D014947', 'Disease') :: ['injuries'] @entity174 :: ('MESH:D050723', 'Disease') :: ['fractures', 'fractures of the alveolar process', 'Mandibular fractures', 'Paediatric maxillofacial fractures', 'Fractures', 'fracture']
@entity174 :: (MESH:D050723,Disease) :: ['fracture']
