Document Type

Article

Publication Date

7-2016

Abstract

Objectives: This study was conducted to evaluate whether maxillary conventional complete denture or narrow diameter implant retained maxillary overdenture is more compatible on opposing crestal bone height surrounding mini implants retaining mandibular overdenture. Materials and Methods: Fourteen male completely edentulous patients received mandibular overdentures retained by four one piece mini implants with ERA attachments placed anterior to the mental foramen. Patients were randomly divided into two groups: Group I received opposing maxillary conventional complete denture and Group II received opposing maxillary overdenture retained by four one piece narrow diameter implants with ball attachments placed in the anterior maxilla. Once patients were comfortable to the prostheses, they were placed on zero, six and twelve months follow-up periods using cone beam computed tomography. Measurements were taken on crestal bone height surrounding the mandibular mini implants then the results were statistically analysed. Results: There was decrease in crestal bone height surrounding the mandibular mini implants in both studied groups where Group II showed statistically significant higher crestal bone resorption than Group I after one year follow-up period. Conclusion: Maxillary conventional complete denture is more compatible on the opposing crestal bone height surrounding mini implants retaining mandibular overdenture than narrow diameter implant retained maxillary overdenture

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