PHOTO-ANALYSIS EVALUATION FOR DIMENSIONAL ACCURACY OF DIFFERENT IMPRESSION MATERIALS FOR COMPLETELY EDENTULOUS MAXILLARY RIDGES (CLINICAL STUDY)

Background: In complete denture prosthodontics, an edentulous arch precise reproduction through the secondary impression is necessary for denture retention and esthetics. Variance in the supporting oral structures nature and quality demands utilizing various accurate border molding and ultimate impression materials to attain successful prosthesis. Objectives: Tophoto-analytically evaluate and compare the dimensional accuracy of four dissimilar final maxillary completely edentulous impressions fabricated from two dissimilar border molding and secondary impression materials. Materials and Methods: Ten completely edentulous patients were nominated rendering to inclusion criteria and received complete dentures. For each patient, four dissimilar secondary maxillary impressions were constructed and divided into four groups owing to the border molding and impression materials utilized. All impressions were transferred into type IV dental stone, and casts were all snapped through a digital camera with fixed and repeatable stipulations. All photos attained were presented into computer software. Two dimensions were possessed for individual cast and compared. Results: An insignificant difference was apparent among all groups concerning parameters as P=0.06 and angles as P=0.053. Data were collected, tabulated, and statistically investigated utilizing Statistical Package for Scientific Studies16 ®, Graph pad Prism, and Windows Excel. Conclusion: However, recent elastomeric Putty and Medium rubber base impression materials almost possess equivalent means of dimensional accuracy in contrast with the conventional ones. But still, Greenstick compound and Zn/O Eugenol impression paste are insignificantly more dimensionally accurate in fabricating final impressions for completely edentulous patients.