1Lecturer, Removable Prosthodontics, Faculty of Dentistry, Pharos University, Alex, Egypt
2Associate Professor, Faculty of Dentistry, Minia University, Minia, Egypt
3Professor, Prosthodontics, Faculty of Dentistry, Minia University, Minia, Egypt
Mandibular conventional denture is no longer the most appropriate first choice of treatment, nowadays implant retained overdentures proved to be a predictable and effective method as compared to complete dentures.
The aim of the present study was to evaluate the effect of using zirconia and metallic bar attachment overdentures on peri-implant supporting tissue clinically for implant-supported overdentures in the mandible during a year period.
Twelve completely edentulous patients had two inter-foraminal implants. The patients divided randomly into two equal groups. Six patients received zirconium bar attachment system and the other group received metallic (Cr-co) bar attachment, modified plaque index was obtained for both groups.
No implants were lost from baseline to a year registration. Metallic bar attachments showed significant plaque accumulation than zirconium bar attachments.
There was better modified plaque index for zirconium bar attachment.
Mandibular overdenture, two implants, zirconium bar, metallic bar
