Year : 2021

Volume : Volume 12

Issue : Issue 5

Address for correspondence :
Dr. Kaushik Kumar Pandey
kaushik.pandey05@gmail.com

Abstract

Background: This study aims to compare and evaluate the effectiveness of different border molding and final impression materials on the retention of heat cure maxillary denture bases. Materials and Methods: Fifteen completely edentulous subjects including male and female were used in the study with in the age range of 40–65 years of age. A total number of 45 samples were collected and divided into three groups (A, B, and C), consisting of 15 samples each. Border molding with three different materials was performed with low fusing impression compound, polyvinyl siloxane, and combination of above two. Effectiveness of above three border molding materials was evaluated by score criteria. Heat cure trial denture bases were fabricated after the wash impression with zinc oxide eugenol in Group A and light body in Groups B and C, respectively, were taken. Master casts were poured on which heat cure trail denture base and retention was measured with the help of force meter spring dynamometer after placing a loop in the maxillary record bases was fabricated. Result: Statistical analysis was conducted using Kruskal–Wallis test, ANOVA and Tukey’s post hoc analysis. There was a statistically significant difference between the three groups (P < 0.05) and Group B showed the highest effectiveness and retentive values. Conclusion: Comparing the three different materials, polyvinyl siloxane (Putty) showed the highest efficiency in terms of score criteria. Heat cure trial denture bases produced by Group B showed the highest mean retentive values followed by Group C and Group A. Keywords: Border molding, Putty, Retention, force meter.