DOI:

10.37988/1811-153X_2020_2_96

Clinical efficacy of three-unit fixed partial dentures attached to tilted abutment teeth

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Authors

  • S.D. Arutyunov 1, PhD in Medical Sciences, full professor of the Dentistry diseases propaedeutics Department
  • Y.N. Kharakh 1, assistant at the Dentistry diseases propaedeutics Department
  • 1 Moscow State University of Medicine and Dentistry, 127473, Moscow, Russia

Abstract

The article presents a new, minimally invasive technique for replacing defects in the dentitions with a three-unit fixed bridge, which provides the ability to maintain the abutment teeth vital during their convergence towards the defect. Objectives: evaluate the effectiveness of the proposed design of a three-unit fixed bridge with a horizontal path of way what determined the following objectives: comparative analysis of their two-year survival rate (service life) and comparing three-unit zirconium dioxide fixed bridge prostheses made by computer milling, which are the modifications we proposed with designs made using traditional technology. Materials and methods. One three-unit fixed bridge was fixed to each of the 63 patients (mean age 34±4 years) in the main group. Monitoring of indicators of hygiene index (OHI‑S), periodontal indices (PBI and CAL), as well as the results of functional studies (digital occlusiography, periotestometry, ultrasound dopplerography), was carried out. The obtained results were compared with the results of 65 patients (mean age was 46.8±12 years) from a study by M.S. Chaar et al. [27]. Results. A positive improvement in the periodont of the abutment teeth, stabilization of the process, the absence of negative impact of the proposed designs was revealed in patients of the main group. The result of the analysis was a statistically insignificant difference in the survival rate of the proposed modified designs (95.200±0.027%, p<0.05) compared with the traditional prostheses (100%, p<0.05). Conclusions. Comparable durability of therapeutic prostheses in the main and control groups allows us to judge the effectiveness of the developed design of the three-element bridge.

Key words:

tilted abutment teeth, three-unit fixed bridge

For Citation

[1]
Arutyunov S.D., Kharakh Y.N. Clinical efficacy of three-unit fixed partial dentures attached to tilted abutment teeth. Clinical Dentistry (Russia).  2020; 2 (94): 96—103. DOI: 10.37988/1811-153X_2020_2_96

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Published on

July 25, 2020