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VOLUME 13 , ISSUE 4 ( October-December, 2023 ) > List of Articles


Dimensional Stability of Maxillofacial Prosthetic Room Temperature Vulcanized Silicones after Various Disinfection Protocols: An In Vitro Study

Neha Parmar, Sareen Duseja

Keywords : Alcohol disinfectant, Coronavirus disease of 2019, Dimensional stability, Herbal disinfectant, Maxillofacial prosthesis

Citation Information : Parmar N, Duseja S. Dimensional Stability of Maxillofacial Prosthetic Room Temperature Vulcanized Silicones after Various Disinfection Protocols: An In Vitro Study. Int J Prosthodont Restor Dent 2023; 13 (4):210-215.

DOI: 10.5005/jp-journals-10019-1428

License: CC BY-NC 4.0

Published Online: 30-12-2023

Copyright Statement:  Copyright © 2023; The Author(s).


Purpose: To determine the influence on the dimensional stability of silicone specimens treated with water, soap water, alcohol, and herbal disinfectant for 45 days. Materials and methods: A total of 80 test specimens were prepared from room temperature vulcanizing (RTV) silicones using a metal die according to the American Dental Association (ADA) specification no. 19 and divided into four groups (n = 20). Each group's samples were treated with a different disinfectant solution (normal water, soap water, herbal disinfectant, and alcohol disinfectant) twice a day for 45 days. Dimensional stability was analyzed by stereomicroscope in intervals of every 15 days. Repeated measure analysis of variance (ANOVA), one-way ANOVA, and post hoc Tukey test were used for statistical analysis. Results: Initially, alcohol disinfectant causes more shrinkage of silicone, while herbal disinfectant results in less shrinkage of silicone prosthesis. Dimensional stability measurements of samples treated with normal water (24.91, 24.84, and 24.72 mm), soap water (24.94, 24.91, and 24.73 mm), herbal-based disinfectant (24.9, 24.87, and 24.78 mm), and alcohol disinfectant (24.96, 24.93, and 24.75 mm) at 15, 30, and 45 days, respectively revealed significant shrinkage of RTV silicones over time in each group (p < 0.05). Conclusion: Herbal disinfectant can be a favorable disinfectant for maintaining dimensional stability of RTV silicone in comparison to soap water as well as alcohol-based disinfectant.

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