To Evaluate Different Soft Tissue Liners, as Functional Impression Materials, by Determining its Effect on Surface Roughness of Dental Stone Over a Time Period: An In-Vitro Study

Volume 3 - Issue 2

Swapnil B Shankargouda¹*, Preena.Sidhu² and Sounyala.N.Rayannavar³

Received: October 01, 2018;   Published: October 09, 2018

DOI: 10.32474/MADOHC.2018.03.000159

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Abstract

a) Purpose: To evaluate, compare and contrast the changes in surface roughness of dental stone casts, recovered from commercially available chair-side soft liners, used as functional impression materials.

b) Methods: Ten disk-shaped denture soft liner samples [18 mm wide × 2 mm thick] were fabricated and dental stone poured over it after zero hours [control], one day, seven days, fourteen days and twenty one days, with a total sample size of 100 obtained from GC SOFT LINER [50 samples] and MOLLOSIL [50 samples] respectively.The dental stone samples were then evaluated for mean surface roughness values [Ra] using a profilometer.

c) Results: Student’s paired t test [p<0.05] and Co-efficient of variance [C.V] test was used for statistical analysis. The mean surface roughness values of MOLLOSIL samples increased gradually and consistently over the period of zero hours to twenty-one days in comparison to the GC SOFT LINER samples.

d) Conclusion: Within the limitations of this study, silicone-based soft tissue liner showed better results than the acrylic-based soft liner in terms of surface roughness, over the period of zero hours to twenty-one days.

Abstract| Introduction| Materials and Methodology| Results| Discussion| Conclusion| References|