Published Paper


Comparative Evaluation of the Post Set Hydrophilicity of Commercially Available Elastomeric Impression Materials An Invitro Study

Kirti Bakale, Vidya K Shenoy, Sharanya Adhikari, Jalis Ayesha Khan, Abdul Ajees Abdul Salam, Blessy Bangera
India
Page: 779-783
Published on: 2023 June

Abstract

Introduction: A clear understanding of the hydrophilic properties of elastomericim pression materials post setting, is of paramount importance to obtain accurate casts. Objective: The post set hydrophilicity of elastomeric impression materials has not been fully established. The purpose of this study was to measure and compare the contact angle of three elastomeric impression materials with water after setting. Materials and method: The hydrophilic properties of set polyether and two vinylpolysiloxane (VPS) impression materials were analyzed with respect to their water contact angle measurements. Impression discs were made using a metal die and ring. Deionized ultra-filtered water was placed on each disc and contact-angle measurements were made at 0, 15, 30, 45 and 60 s using sessile drop method. Results: The data were analyzed using repeated ANOVA. A one way ANOVA was carried out to determine the comparison between the groups followed by post hoc Tukeys test. Repeated measures ANOVA was done for the comparison within the groups followed by a pairwise comparison using Bonferroni’s adjustment. The level of significance was set at P< 0.05. The mean values of contact angles for polyether were significantly lower than both the vinyl polysiloxanes (VPS) at all measurement times.There was no significant difference amongst the contact angle measurements of VPS materials. Conclusion: Within the limitations of this study, commercially available PE was more hydrophilic compared the tested elastomeric impression materials.

 

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