[Research of chewing efficiency in patients with extensive acquired defects of the upper jaw after resections of nasopharyngeal zone tumors and various terms of orthopedic rehabilitation].

The aim of the study was to estimate how the quality and terms of rational dental orthopedic treatment affects masticatory efficiency in patients using obturators after extensive resections of nasopharyngeal area tumors. The analysis of indicators of masticatory efficiency in dynamics with the use of masticatory probe of V.N.