Dental trauma in patients with maxillofacial fractures.
PURPOSE
The purpose of this study was to analyze and evaluate the correlation between dental injuries and the pattern of maxillofacial fractures. The correlation with age, gender, trauma mechanism and type of maxillofacial fracture was also investigated.


MATERIALS AND METHODS
From January 2000 to December 2009, 1131 patients with facial fractures were registered. Of these, 473 presented with associated dental trauma. The information and data collected and analyzed included: age, gender, mechanism of injury, type of facial fracture, type of dental injury, and the relationship between dental injury and facial fracture.


RESULTS
Dental injury was sustained by 473 patients (41.8%), with a total of 2215 injured teeth. Of the 2215 injured teeth, 1191 (53.8%) were in the maxilla and 1024 (46.2%) in the mandible. Fall from a height had the highest risk of dental injuries (OR = 4.145, P = 0.002). The central incisor was the most injured tooth for both the maxilla (388, 36.2%) and mandible (284, 27.7%). The most common type of dental injury was avulsion (1070, 47.4%). More anterior teeth in the maxilla were of crown fracture, avulsion, and intrusion than that in the mandible, whereas more anterior teeth in the mandible were of subluxation and concussion than that in the maxilla. Dental injuries were more prone to occur in patients who sustained only symphysis fractures (OR = 2.817, P < 0.001), only 0.236-fold risk in patients who sustained only mandible angle fracture (P < 0.001).


CONCLUSIONS
The occurrence of dental trauma is significantly related to the pattern and position of the maxillofacial fractures.
['Zhou|Hai-Hua|HH|', 'Ongodia|David|D|', 'Liu|Qi|Q|', 'Yang|Rong-Tao|RT|', 'Li|Zu-Bing|ZB|']
D000059:Accidents D000293:Adolescent D000328:Adult D000367:Age Factors D000368:Aged D000369:Aged, 80 and over D002648:Child D002675:Child, Preschool D002681:China D005260:Female D006801:Humans D007223:Infant D007572:Jaw Fractures D016015:Logistic Models D008297:Male D008875:Middle Aged D015995:Prevalence D012306:Risk D012737:Sex Factors D018677:Tooth Injuries
dental trauma maxillofacial fractures prevalence