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PubMed2003

Influence of positions on the incidence and severity of maxillofacial injuries in vehicular crashes [corrected].

The objective of this study was to determine the influence of positions on the incidence and severity of maxillofacial injuries in vehicular crashes. Two hundred and fifty cases of RTA were seen and studied from October 1999 to May, 2000. They comprised 72.8% males and 27.2% females with a male to female ratio of 2.7:1. The age range was 1 to 80 years with a mean age of 40 years. The most common vehicle involved in RTA was the mini bus, 34.3% followed by motorcycle, 26.5%. Middle seat passengers, drivers and motorcycle passengers and riders sustained more and severe injuries during crashes. The mandible was more frequently fractured at the symphysis (24.6%) than at any other site while the maxilla was frequently fractured at the zygomatic bone and arch (10.8%). More injuries occurred in the age range of 20-30 years and these accounted for 31.8% of the cases. Only 6 occupants of motor vehicles wore seat belts before accident while no motorcycle rider or passenger wore any helmet. In conclusion, drivers, middle seat occupants of a vehicle, motorcycle passenger and riders sustained more and severe injuries than back seat occupants.

Abbreviated Injury Scale↗
PubMed1988

California mandatory seat belt law: the effect of recent legislation on motor vehicle accident related maxillofacial injuries.

This study evaluated the effects of the California mandatory seat belt law on prevention of motor vehicle accident (MVA)-related maxillofacial injuries. The records of 950 MVA-related injury victims treated at San Francisco General Hospital during comparable 3-month periods in 1985 (451) and 1986 (499) were reviewed to assess the effect of seat belt legislation on reduction of maxillofacial trauma. No significant difference was found in the injury severity scores between the two study periods. In addition, this study did not confirm the reported beneficial effect of seat belt legislation on reduction of MVA-related facial injuries in California. This finding was attributed to poor compliance with the law (50.3% compliance rate).

Accidents, Traffic↗
PubMed1977

Dental aspects of maxillofacial injuries.

The chief progress of maxillofacial surgery in recent years has been the preservation and the retention of functional tissue. The recent advances in microvascular and reimplantation surgery are examples. Similarly the preservation of the masticatory apparatus is best served by the retention of all viable components. Additional benefits derived from this approach include the facilitation with alignment of the bony fragments, proper occlusion of the teeth and maintenance of the vertical relationship between the upper and lower jaws; in addition to the restoration of appearance and the functions of mastication and speech. Although injuries of the teeth and their supporting stuctures at first glance may seem to be simple problems, frequently they turn out to be complicated. The most common injury is partial avulsion of the alveolar bone with loss of attached teeth, which may produce a severe defect in the jaw bone. During healing there is additional resorbtion of alveolar bone, which is quite a normal physiologic phenomenon. Therefore, the eventual defect is likely to be more severe yet. For this reason more concern should be shown for these lesser injuries.

Dentition↗
PubMed1989

Patterns of maxillofacial injuries in restrained and unrestrained motor vehicle crash victims.

Safety belts reduce the frequency and severity of injuries sustained in motor vehicle crashes. Since the head and face are the most frequently injured anatomic regions in motor vehicle crash victims, the use of active restraints should lessen these injuries. This study was undertaken to examine the ability of safety belts to prevent and alter the pattern of maxillofacial injuries. During a 6-month period beginning February 1, 1987, 613 motor vehicle crash victims presented alive to the Trauma Center at the University of Tennessee Medical Center at Knoxville and were entered into this study. There were 254 restrained victims (R), 290 unrestrained (UR), and 69 who were excluded for lack of sufficient data regarding restraint usage. Unrestrained victims tended to be younger (mean age: UR = 27.9, R = 31.7; p less than 0.03), and more often male (UR = 65% vs. R = 51%; p less than 0.03). Irrespective of position within the vehicle, the mean number of facial lacerations per person was less in the restrained group (R = 0.31, UR = 0.76; p less than 0.03). This injury reduction was more pronounced in front seat occupants (R = 0.27, UR = 0.82; p less than 0.03). Furthermore, a smaller proportion of the lacerations in the restrained group were categorized as complex, i.e., involving more than skin and subcutaneous tissue (R = 5.0%, UR = 15.9%; p less than 0.03). The pattern of skeletal injuries was also significantly different.(ABSTRACT TRUNCATED AT 250 WORDS)

Accidents, Traffic↗
PubMed2002

Maxillofacial injuries related to work accidents: a new concept of a hospital-based full electronic occupational trauma surveillance system.

The objective of this study was to investigate the occurrence of occupational maxillofacial injuries using a newly installed relational database. Twenty-six injuries were identified out of 28,624 patients admitted to the emergency unit during a 12 month period. Falls from height or being struck by moving objects were common causes of these injuries. Two-thirds of those identified were construction workers. This paper demonstrates the power of modern databases to identify specific occurrences that may provide the basis for prevention in the future.

Accidents, Occupational↗