Clinical evaluation of two distinct materials for implant-supported interim fixed partial prostheses: An original research

• Main Authors: D Sravanthi (Author), Sareen Duseja (Author), Manawar A Mansoor (Author), Hina N Abdul (Author), T Anjan (Author), Doddy Lokanathan Balaji (Author), Rahul V C. Tiwari (Author)
• Format: Book
• Published: Wolters Kluwer Medknow Publications, 2024-01-01T00:00:00Z.
• Subjects: article
• Online Access: Connect to this object online.

Summary

Aim: This study aimed to evaluate the clinical efficacy of posterior resin implant-supported fixed partial dentures (FPDs) made from two different computer-aided design and computer-aided manufacturing (CAD-CAM) materials: polymethylmethacrylate (PMMA) and polyoxymethylene (POM). Materials and Methods: Twenty-one patients received a total of 49 interim implant-supported FPDs. The same participant received PMMA and POM as part of the control and experimental groups, respectively. The restorations were evaluated 1 week, 3 months, and 6 months after placement. In addition, their functional wear and color stability were assessed. Nonparametric statistics (α = 0.05) were used to analyze the data. Results: The study found that PMMA outperformed POM in surface and color parameters, with more fractures occurring with internal conical connection implants. The color stability analysis showed ΔE*ab values of 7.18 for PMMA and 8.8 for POM, with no significant differences. After 6 months of operation, both materials showed a significant increase in wear, but no significant differences were found within the materials. Conclusion: The study found that PMMA interim implant-supported FPDs outperformed POM in surface and color parameters, while polymer posterior implant-supported FPDs with internal conical connection implants were more fracture-prone.

Item Description

0975-7406
10.4103/jpbs.jpbs_914_23