Comparative assessment of two filling materials as restorative options for tooth-tissue supported overdentures: A Split- mouth Randomized Trial

Document Type : Original Article

Authors

1 Associate professor, Department of prosthodontics, Faculty of Dentistry. October University for Modern Sciences and Arts, Giza, Egypt.

2 Lecturer, Department of Endodontics, Faculty of Dentistry. October University for Modern Sciences and Arts, Giza, Egypt.

3 Lecturer, Department of Prosthodontics, Faculty of Dentistry. October University for Modern Sciences and Arts, Giza, Egypt.

4 Assistant lecturer, Restorative Department, Faculty of Dentistry. October University for Modern Sciences and Arts, Giza, Egypt.

5 Associate professor of Prosthodontics, Faculty of oral and Dental Medicine, Delta University for Science and Technology

10.21608/adjc.2025.327391.1647

Abstract

Abstract
Aim: The idea of tooth tissue supported overdentures is considered as an alternative to extraction of remaining teeth. The difference in clinical outcome between amalgam and nano-hybrid resin composite as filling material for the overdenture abutments, yet has not been emphasized, thus further research is required to confirm the ideal filling material in prepared endodontically treated abutment teeth.
Methods: 28 patients with bilateral remaining canines or premolars in the maxillary or mandibular arch were enrolled in the study. Dome shaped preparations of the abutments were performed. The amalgam and composite restorations were randomly assigned to either the right or left remaining abutments, then conventional steps of overdenture fabrication and insertion were accomplished. Patients were followed up for 3 years.
Results: A non -statistically significant difference was revealed in the wear depth of the two restoration P value <0.001. However, A statistically significant higher survival survival rate of nano-hybrid composite was revealed. P value= 0.387
Conclusion: Nano-hybrid resin composite can be used successfully as filling material for overdenture abutments.

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