DOI:

10.37988/1811-153X_2025_4_181

Effects of partial removable denture design on the composition of the denture surface microbiota

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Authors

  • I.V. Portyannikov 1, postgraduate at the Prosthetic dentistry Department
    ORCID: 0000-0003-0750-5995
  • A.V. Lyamin 1, Doctor of Science in Medicine, professor of the Medical microbiology and immunology Department, Director of the Center for Genetic and Laboratory Technologies
    ORCID: 0000-0002-5905-1895
  • C.C. Komlev 1, Doctor of Science in Medicine, professor of the Prosthetic dentistry Department
    ORCID: 0000-0001-6491-4694
  • I.I. Zanin 1, specialist at the Center for Genetic and Laboratory Technologies
    ORCID: 0009-0008-2721-4152
  • 1 Samara State Medical University, 443099, Samara, Russia

Abstract

Removable partial dentures (RPDs) are widely used, but their colonization by microbial biofilm causes complications (stomatitis, systemic diseases). Denture design, including retention elements, affects biofilm formation; investigating this effect is relevant.
Materials and methods.
Thirty patients were enrolled and divided into 2 groups: 14 with precision attachment RPDs and 16 with traditional clasp-retained RPDs. Swabs were taken from the dentures. Microbiological culture, identification (MALDI-ToF), and statistical analysis were performed.
Results.
A total of 91 microbial species were identified. Significant differences were found between the groups. In patients with precision attachment RPDs, a significant reduction in the isolation frequency and titer of Candida albicans was observed, as well as the titer of Streptococcus constellatus, compared to clasp-retained RPDs.
Conclusion.
Denture design influences the composition of its surface microbiota. Precision attachment RPDs are associated with reduced colonization by C. albicans and S. constellatus, likely due to the minimization of retention elements. This underscores the need for modern designs for the prevention of complications.

Key words:

partial dentures, microbiota, denture design, fixation systems

For Citation

[1]
Portyannikov I.V., Lyamin A.V., Komlev C.C., Zanin I.I. Effects of partial removable denture design on the composition of the denture surface microbiota. Clinical Dentistry (Russia).  2025; 28 (4): 181—185. DOI: 10.37988/1811-153X_2025_4_181

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Received

April 2, 2025

Accepted

October 3, 2025

Published on

December 18, 2025