Effect of two Different Bar Materials on the Supporting Structures of Implant-Tissue Supported Mandibular Overdenture
Reham Alaa EL-Sharabasy;
Abstract
The study was carried out to evaluate the marginal bone height around bar attachment in implant retained mandibular overdenture.
Fourteen male patients were selected from among those attending the out-patient clinic, Prosthodontic Department, Faculty of Dentistry, Ain Shams University to participate in this study. Patients were precisely selected and thoroughly examined in an attempt to reduce human variables and to eliminate any factor that might adversely affect the results of this study.
Patients were rehabilitated by mucosa supported maxillary complete denture and implant retained mandibular overdenture. Standard clinical and laboratory techniques were followed for denture construction for all patients. Patients participating in this study were randomly divided into two equal groups:
Group 1: For patients of this group, two dental implants with cobalt-chromium alloy bar attachments were installed in the inter-foraminal area.
Group 2: For patients of this group, two dental implants with zirconium bars fabricated using MAD/MAM technique were installed in the inter-foraminal area.
Surgical installation of the implant was performed under strict aseptic conditions. After three months post-operatively bars were cemented to abutments and dentures were delivered to patients.
Patients were recalled frequently for post-insertion inspection and adjustments. Follow-up visits were scheduled at the time of denture insertion, six, and twelve months after insertion for inspection of the prosthesis and radiographic evaluation of the peri-implant supporting structures. Marginal bone height changes around the implants were evaluated by the cone beam computed tomography.
Results obtained from this study showed:
Crestal bone loss among the two studied groups (Cobalt Chromium and Zirconia bar groups) increases overtime.
Crestal bone loss was lower among Zirconia bar group compared with Cobalt Chromium bar group in all sites.
Fourteen male patients were selected from among those attending the out-patient clinic, Prosthodontic Department, Faculty of Dentistry, Ain Shams University to participate in this study. Patients were precisely selected and thoroughly examined in an attempt to reduce human variables and to eliminate any factor that might adversely affect the results of this study.
Patients were rehabilitated by mucosa supported maxillary complete denture and implant retained mandibular overdenture. Standard clinical and laboratory techniques were followed for denture construction for all patients. Patients participating in this study were randomly divided into two equal groups:
Group 1: For patients of this group, two dental implants with cobalt-chromium alloy bar attachments were installed in the inter-foraminal area.
Group 2: For patients of this group, two dental implants with zirconium bars fabricated using MAD/MAM technique were installed in the inter-foraminal area.
Surgical installation of the implant was performed under strict aseptic conditions. After three months post-operatively bars were cemented to abutments and dentures were delivered to patients.
Patients were recalled frequently for post-insertion inspection and adjustments. Follow-up visits were scheduled at the time of denture insertion, six, and twelve months after insertion for inspection of the prosthesis and radiographic evaluation of the peri-implant supporting structures. Marginal bone height changes around the implants were evaluated by the cone beam computed tomography.
Results obtained from this study showed:
Crestal bone loss among the two studied groups (Cobalt Chromium and Zirconia bar groups) increases overtime.
Crestal bone loss was lower among Zirconia bar group compared with Cobalt Chromium bar group in all sites.
Other data
| Title | Effect of two Different Bar Materials on the Supporting Structures of Implant-Tissue Supported Mandibular Overdenture | Other Titles | تقييم تأثير مادتين مختلفتين لعمل القضيب على عظام الفك الداعمه للأطقم السفليه المتحركه المحموله على الغرسات السنيه | Authors | Reham Alaa EL-Sharabasy | Issue Date | 2016 |
Attached Files
| File | Size | Format | |
|---|---|---|---|
| G13866.pdf | 195.91 kB | Adobe PDF | View/Open |
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