The effect of different types of attachment system in implant assisted over denture on rate of resorption of grafted anterior mandible (prospective clinical study) | ||
| Egyptian Journal of Oral and Maxillofacial Surgery | ||
| Article 1, Volume 11, Issue 2, April 2020, Pages 36-43 PDF (495.16 K) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/omx.2020.29369.1063 | ||
| Authors | ||
| Noha Nawar1; Heba Sleem* 2 | ||
| 1Department of Prosthodontic, Faculty of Dentistry, Ain Shams University, Cairo, Egypt | ||
| 2Department of Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Ain Shams University, Cairo, Egypt | ||
| Abstract | ||
| Purpose: Mandibular implant assisted overdentures have been considered as satisfactory treatment plan of mandibular edentulism and might be hindered by limited bone height and or width in interforaminal region which necessitate implementation of bone grafts. However, bone graft resorption is expected after loading where the design of retention system could influence resorption rate. So the objective of this study is to assess the effect of using retention sil versus PEEK matrix as a retention system of overdenture on supporting bone of augmented anterior mandible. Material and Methods: Fourteen patients were randomly assigned into two groups after being subjected to anterior mandibular bone grafting and implant insertion., for group I patients. Implants were loaded by mandibular overdentures using the OLS attachments system (PEEK female) and for group II implants were loaded using silicone matrix (Retention Sil 400) over the locator abutments with its dual retention mechanism. Implant stability was assessed using (osstell). Peri-implant bone loss was radiographically assessed after loading (at 6 months and 1 year intervals). Results: There was no significant increase in implant stability between the two groups. However, group II presents significantly lower bone loss one year after loading (p ≤ 0.01) than group I. Conclusion: It could be concluded that resilient matrix (retention sil) for locator attachment induce less bone resorption than peek matrix in anterior grafted mandibular bone. | ||
| Keywords | ||
| Bone graft; OLS attachment; Over denture; Retention sil | ||
|
Statistics Article View: 197 PDF Download: 793 |
||
