A prospective survey of percutaneous injuries in orthodontists.

This national survey provides documentation regarding typical orthodontic practice patterns in the United States, including the prevalence of percutaneous injuries. The sample reflects a similar geographic distribution of the population as a whole, with more practitioners located in areas with higher populations. Most practitioners in this sample were in solo full-time practice, averaging 35 hours per week, and treating patients for 47 weeks per year. A 20-day prospective period was used to collect data regarding exposure to percutaneous injuries. The study identified a mean percutaneous injury rate of 0.085 during a 20-day period for practicing orthodontists, a value that can be extrapolated to slightly less than one (0.99) percutaneous injury per orthodontist per year. The majority of these injuries (84%) occurred outside the mouth. This rate is approximately one third the rate reported for dentists in general practice.