Impressions for Multiunit Implant Supported Prosthesis: A Simple and Innovative Technique

Abstract

Making of impression is an integral part of fabrication of prosthesis. Quality of impression material and technique used to fabricate will influence fit of prosthesis. The precise transfer of the spatial relationships of implants from the mouth to the master cast with an impression is the first and crucial step to ensure passive fit of implant framework. As passivity of prosthesis is mandatory for implant supported fixed prosthesis, failure to achieve the same will lead to considerable stresses to screw retained prosthesis which leads to loosening of prostheses and screw fracture. Making of impression in multiple unit implant cases becomes even more crucial. To achieve accurate impression in previous study has emphasised on the importance of splinting impression copings together for multiunit implant impression. Various researches have been done regarding use of different splinting materials and impression materials. Use of die stone has never been attempted as impression material for implant impressions. In this article, authors have put forth an innovative technique of using rigid and non rigid impression material without any splinting technique or rather using die stone impression material itself as a splinting material to make impression in an implant supported prosthesis.

Keywords

• die stone
• misfit
• passive
• splinting