Analysis of reasons for visit in completely edentulous patients requiring repeat prosthetic rehabilitation

Abstract

Background: Complete laminar dentures are currently the most common prosthetic rehabilitation approach in completely edentulous patients. However, acrylic resin, the primary structural material used in these dentures, has certain well-known disadvantages. Identifying the primary reasons for visit in patients requiring replacement of acrylic complete laminar dentures will help determine the best course of action for improving this type of prosthetic rehabilitation.

Aim: To assess the reasons for visit in patients requiring replacement of complete laminar dentures.

Materials and methods: Between 2021 and 2022, a comprehensive dental examination was performed in completely edentulous patients who had previously used complete laminar dentures and needed to replace them. The primary factors determining the need for replacement dentures of this type were identified, and their frequency during specific time periods was assessed. The risk of functional defects, mechanical failures, and poor esthetic condition was calculated. Nonparametric analysis (chi-squared test) was used to assess statistical differences between the parameters. The frequency of a specific reason for visit was assessed using relative risk (RR) with a 95% confidence interval (CI).

Results: Mechanical failure was the main reason for visit (63.3%) in completely edentulous patients requiring replacement of complete laminar dentures within three years after the dentures were manufactured. After three years of wearing these dentures, the risk of mechanical failure and functional defects significantly increases by 1.8 times (RR=1.4; 95% CI: 0.9–1.9) and 1.6 times (RR=1.6; 95% CI: 1.1–2.6), respectively (p <0.05), with approximately equal frequency (47.8% and 43.7%, respectively). When wearing these dentures for more than six years, visits due to functional defects become the most common (58.3%).

Conclusion: The service life of complete laminar dentures is directly associated with the reasons for visit for their replacement. The increased risk of functional defects, such as impaired fixation and stabilization, necessitates developing a set of measures for the prevention of maxillary ridge and mandibular alveolar bone atrophy, as well as dystrophic changes of the mucosa in the denture-supporting area.

Keywords

complete laminar dentures / repeat prosthetic rehabilitation / removable dentures

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