Impact of Locator Attachments with Different Retentive Insert Materials on Bite Force in Mandibular Implant Overdenture | ||
| Egyptian Journal of Oral and Maxillofacial Surgery | ||
| Article 3, Volume 12, Issue 4, October 2021, Pages 245-254 PDF (1.4 M) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/omx.2022.109075.1145 | ||
| Authors | ||
| Abdelaziz M.* ; Altonbary Y.; El Mekawy N.; Hegazy A. | ||
| Department of Prosthodontics, Faculty of Dentistry , Mansoura University , Egypt | ||
| Abstract | ||
| .Purpose: To evaluate the impact of locator attachments with different retentive insert materials on bite force in mandibular implant overdenture. Materials and Methods: Eight completely edentulous patients were selected for this study. Each patient received two implants in the canine area of the mandible bilaterally. Patient grouping was performed as follow, group Ι: 4 patients received two locator overdenture attachments with nylon inserts, group ΙΙ: 4 patients received two locator overdenture attachments with PEEK inserts. The bite force was measured with conventional complete denture, after 3 months of overdenture insertion and after 6 months using occlusal force transducer. The surface wear evaluation of PEEK and nylon inserts were done before pick-up, after 3 months and after 6 months of overdenture insertion using scanning electron microscope (SEM). Results: There was significant difference between groupI(nylon insert) and groupII (PEEK insert).Overdentures loaded with PEEK inserts recorded significant increase in bite force values than nylon inserts after 3 months and 6 months of overdenture insertion(P<0.001). Significant wear changes were shown with nylon inserts at (T3) and (T6) rather than PEEK inserts(P<0.001). Conclusion:PEEK inserts in locator attachments provide successful inserts instead of nylon ones providing better biteforce and wear resistence | ||
| Keywords | ||
| implant overdenture; PEEK insert; locator; biteforce | ||
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