Bacterial accumulation of different telescopic crowns: (PEEK) versus Cobalt-Chromium telescopes in implant-supported mandibular overdenture. | ||||
| Minia Journal of Medical Research | ||||
| Volume 32, Issue 2, April 2021, Page 91-98 PDF (734.12 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/mjmr.2021.231551 | ||||
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| Authors | ||||
| Ahmad Sh. Abd El Azeem; Ahmad G. Ahmad Hassan; Emad M. Tolba Agamy | ||||
| Department of Prosthetic Dentistry, Faculty of Dentistry, Minia University | ||||
| Abstract | ||||
| Abstract Purpose: The purpose of this study is to compare bacterial accumulation between telescopic over dentures fabricated by two different materials: PEEK ( Polyetheretherketone) and Cobalt-Chromium copings. Material &Methods: Ten completely edentulous patients were selected from the Outpatient Clinic of the Prosthodontics Department; Faculty of Dentistry, Minia University. Strict inclusion/exclusion criteria were applied. Also, all required investigations were done for all patients. Each patient received two implants in the canine regions bilaterally. Implants in all participating patients were from the same manufacture having the same design and overdenture superstructure. The only difference was in telescopic coping material. The patients were randomly divided according to type of telescopic crowns into: Group (1): Patients received overdentures with cobalt chromium telescopic copings (CAD/CAM wax copings were constructed then these copings were transformed to Co/Cr by usual casting procedures). After six months all cobalt chromium copings were replaced by PEEK copings. Group (2): Patients received overdentures with PEEK (polyetheretherketone ) telescopic copings fabricated by CAD/CAM. After six months all PEEK copings were replaced by cobalt chromium copings. The patients were recalled after 6 months and 1 year during which, the bacterial samples were isolated and the corresponding microbial alteration in the restored material were evaluated and data recorded and expressed as CFU/ml. Results: PEEK telescopic copings had greater affinity for bacterial accumulation more than metallic copings, and the differences were statistically significant. | ||||
| Keywords | ||||
| implant-supported overdenture; telescopes; PEEK; bacterial accumulation; CAD/CAM crowns | ||||
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