DOI:

10.37988/1811-153X_2024_4_132

Microrelief of dental implants when using a scaffold based on a collagen matrix

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Authors

  • S.V. Sirak 1, Doctor of Science in Medicine, full professor of the Dentistry Department
    ORCID: 0000-0002-4924-5792
  • A.V. Arutyunov 2, Doctor of Science in Medicine, associate professor and head of the General dentistry Department
    ORCID: 0000-0001-8823-1409
  • M.G. Perikova 1, PhD in Medical Sciences, associate professor of the Dentistry Department
    ORCID: 0000-0001-7004-3581
  • V.N. Lenev 1, PhD in Medical Sciences, associate professor of the Dentistry Department
    ORCID: 0009-0000-5738-5501
  • N.I. Bykova 2, PhD in Medical Sciences, associate professor of the Dentistry Department
    ORCID: 0000-0002-0573-7242
  • O.N. Risovannaya 2, Doctor of Science in Medicine, associate professor of the of Dentistry Department
    ORCID: 0000-0001-9585-4444
  • V.B. Shovgenov 1, postgraduate at the General dentistry Department
    ORCID: 0009-0004-8520-1246
  • A.A. Ovsyannikova 1, PhD in Medical Sciences, associate professor of the General dentistry Department
    ORCID: 0000-0003-1262-1472
  • I.I. Kartashevsky 1, laboratory assistant at the General dentistry Department
    ORCID: 0000-0001-5725-6902
  • 1 Stavropol State Medical University, 355017, Stavropol, Russia
  • 2 Kuban State Medical University, 350063, Krasnodar, Russia

Abstract

The surface of the dental implant, having a developed microrelief and pronounced roughness, contributes to better biological compatibility with the bone tissue, reduces the risk of rejection. Properly selected microrelief of the dental implant can reduce the risk of bacterial contamination and development of inflammatory processes, thus contributing to the prevention of peri-implantitis. The aim is to carry out the comparative experimental analysis of the microrelief and elemental composition of the threaded part of the dental implants used with the scaffold on the basis of the collagen matrix.
Materials and methods.
Six year-old sheep (rams) were used and 12 dental implants were placed under the radiologic control. Depending on the type of implants the animals were divided into 3 groups: I — 4 implants Mis (Israel) made of titanium alloy with reduced content of oxygen, nitrogen, carbon and iron (Ti6Al4V ELI) together with scaffold on the basis of collagen matrix; II — Osstem (South Korea) with ultrahydrophilic surface of TS-III CA series together with scaffold on the basis of collagen matrix; III (control) — machine-processed implants Endure (USA). At 3 months after surgery, metal-ceramic crowns were fabricated and inserted into the bite. After 12 and 24 months the implants were removed together with the surrounding tissues and sent for microscopic and histologic examination.
Results.
On the cutting surface of the implants of group I and II the highly organized bone tissue was revealed, the composition of which was dominated by oxygen, carbon, calcium and phosphorus. In the samples of the control group the coarse-fiber tissue with high content of carbon and oxygen was found, which is more typical for the unformed bone tissue. Osseointegration with bone to dental implant surfaces in Group I and in Group II (316.4 and 288.7 kN; p<0.001) was stronger than fixation to machine-processed titanium (78.4±10.4 kN; p<0.002). This was confirmed by a much higher force required to separate the implant from the bone, as well as by a greater number of retention points of bone tissue contacts with the surface of the dental implant.
Conclusion.
The use of the dental implants with the developed microrelief and modified surface together with the scaffold on the basis of the collagen matrix provides more complete osseointegration in comparison with the dental implants of the machine processing. It is confirmed by the histologic picture and microelement composition at operation of the dental implants during 12 and 24 months. In the same terms in the control group qualitative characteristics and microelement composition of the samples of dental implants testified to the low level of mineralization.

Key words:

dental implant, surface, osseointegration, microrelief, scaffold, experiment, microelement composition

For Citation

[1]
Sirak S.V., Arutyunov A.V., Perikova M.G., Lenev V.N., Bykova N.I., Risovannaya O.N., Shovgenov V.B., Ovsyannikova A.A., Kartashevsky I.I. Microrelief of dental implants when using a scaffold based on a collagen matrix. Clinical Dentistry (Russia).  2024; 27 (4): 132—139. DOI: 10.37988/1811-153X_2024_4_132

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Received

April 21, 2024

Accepted

November 10, 2024

Published on

December 17, 2024