Pacheco RMA, Rodríguez PMA

Language: Spanish
References: 13
Page: 150-153
PDF size: 177.12 Kb.

ABSTRACT

Background: Mandible occupies the second place in frequency as site of facial fractures. Most frequent causes are automobile accidents and violent assaults. Characteristics of fractures depend on factors as anatomical structures with weak areas or the existence of non-erupted third molars.
Objective: To determine most frequent causes of mandibular fractures in patients treated at the Hospital Central Militar de Mexico, as well as the affected anatomical regions.
Material and methods: Retrospective study of cases with diagnosis of mandibular fracture, since January 1, 1997, until December 31, 2001. Cases with data of age, genre, site of the fracture and cause of the traumatism were included.
Results: Forty-one patients (39 male and two female) with ages were between 17 and 57 years (mean of 29.9). Most frequent cause of fracture was urban violence (41%), followed by car accident (29%), fall accidents (17%), sport injuries (5%), firearm wound (5%), and auto running down (3%). Most affected anatomical place was mandibular angle (33.8%), followed by mandibular symphysis (30.8%). Male gender suffered most of the trauma (95%).
Conclusion: Results coincide with similar studies. Existence of an impacted third molar increases incidence of these fractures significantly.

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