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Epidemiologic
studies of TMD pain require attention to the general principles
of epidemiologic research, as well as to issues generic to studying
symptomatic conditions, and issues specific to this particular
clinical pain condition. Careful case definition, choice of the
appropriate study design, and attention to practical and logistical
details can result in studies capable of answering a range of
questions about the distribution of TMD pain in the population,
its natural history and risk factors for onset and continuation
of these problems.
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