Nikolov V. V., Korol D. M., Zaporozhchenko I. V., Korol M. D.


About the author:

Nikolov V. V., Korol D. M., Zaporozhchenko I. V., Korol M. D.



Type of article:

Scentific article


The method for investigating the masticatory efficiency in patients with gingival retraction performed before prosthetics is presented in the paper. It provided the most accurate clinical assessment of masticatory efficiency by simplifying the process, reducing its labour content, and, therefore, increasing the level of its effectiveness. Depending on the method of dental care provided, patients were distributed into 2 groups. The first trial group included 29 patients with gingival retraction of abutment teeth for the fixed dentures carried out applying diathermocoagulation. The second trial group included 25 patients with gingival retraction performed with “Ultrahak” floss, “Ultradent”, Inc. (USA), which can be of several sizes. The authors also developed a method for studying the functional state of the masticatory muscles, which made it possible to accumulate and analyze the information obtained, simplify the evaluation of investigation results, to provide improvement of the accuracy and reliability of the data obtained and degree of the research effectiveness. According to the investigation results it was determined that the right-side and left-side mastication data differed insignificantly from each other. The force of masticatory movements is known to be differed in men and women, so the activity of the chewing efficacy of the patients was studied considering their gender. The right-side mastication prevailed in men of the first trial group, and amounted to 5.24 ± 0.01 scores, while in case of left-side mastication this index was only 5.09 ± 0.15 scores. In women of the first trial group the right-side mastication was also preferable (5.34 ± 0.07 scores), whereas the cases with left-side chewing accounted for 5.17 ± 0.08 scores. The right-side mastication according to data obtained was more preferable in women of the second trial group than in men; it made up 5.23 ± 0.09 scores and 5.18 ± 0.13 scores, respectively. It was found that the patients of the first trial group with the right-side mastication demonstrated 0.06 scores greater chewing efficiency than in the second one, while in case of left-side mastication the second trial group presented with 0.06 scores more than the first trial group patients.


gingival retraction, prosthetics, masticatory efficiency


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Publication of the article:

«Bulletin of problems biology and medicine» Issue 2 (144), 2018 year, 369-372 pages, index UDK 616.311.2-089:616.314-089.28/29-631]-036.8