Abstract
This paper describes the main aspects of the uncertainty in orthodontics, including the uncertainty in the choice of the optimal strategy for treating a patient. In the article the basic concepts of the theory of decision making under uncertainty, the analysis of the main methods of selecting solutions, presents the results of the diagnostic algorithm of orthodontic abnormalities and determine the optimal strategy for the correction of anomalies of dental system based on the calculation criteria for decision making under uncertainty. Also, the results of the collection and processing of statistical information about patients with dentoalveolar anomalies.

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