Abstract
Introduction. An accurate impression is necessary for construction of any dental prosthesis. Accurate impressions depend on identifying the applications that do or do not fit each material's characteristics. Materials used without adequate knowledge of their characteristics can impair a successful outcome. The objective of this systemic review is to compare and evaluate the different techniques and there use in fixed partial denture prosthodontics. Materials and methods. The published literature was electronically searched using, Science direct, Wiley online library, Pub med, and Cochrane library. These were then complimented by manual search, to identify clinical trials on different techniques and materials used in fixed partial denture prosthesis impressions. All the studies carried out a standard method of the assessment for better means of impression were used to do this comparison study. Results and discussion. The search provided 19163 titles. There were subsequently found to be 257 papers related to subject of study out of which 116 papers had carried out clinical trials. Out of these 116 papers 37 papers passed the quality assessment and adhered to the inclusion criteria. Conclusion. There are vast numbers of impression techniques available in the field of fixed partial prosthodontics. Each and every technique has its own advantages and disadvantages, but still no impression technique is superior with all the qualities inherent in it and will be universally claimed superior. It is the role of operator to select the appropriate technique for a particular clinical condition by evaluating the various factors that include the trays available, the time required, the salivary flow and its interference, the span of the restoration whether single unit crown and short span bridges or a long span bridgework, the critical areas to be recorded and finally the economy.