Comparison of Linear Dimensional Accuracy Between One Step and Two-step Impression Technique Using Polyvinyl Siloxane Impression Material

Objectives: This study compares the linear dimensional accuracy between one step and two-step impression techniques using polyvinyl siloxane material. Methodology: The Randomized controlled trial was done in Department of Prosthodontics, FMH College Medicine Dentistry Lahore Pakistan Council for Science Industrial Research Lahore. All samples which fall under inclusion criteria were included. Samples divided into two groups, i.e., Group 1 (single-step technique) & 2 (two-step technique). impression's longitudinal length inter-line distance measured to assess outcome i-e accuracy. Result: A total 60 with impressions material made. technique seen 5 (8.33%) 13(21.66%) samples, respectively, (p=0.011). Conclusion: Compared one-step technique, higher uses