World Journal of Dentistry

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VOLUME 13 , ISSUE 5 ( September-October, 2022 ) > List of Articles


Effect of Disinfectants on Dimensional Stability of Two Elastomeric Impression Materials: An In Vitro Study

Keywords : Dimensional stability, Disinfectant, Elastomeric materials, Impression

Citation Information : Effect of Disinfectants on Dimensional Stability of Two Elastomeric Impression Materials: An In Vitro Study. World J Dent 2022; 13 (5):489-492.

DOI: 10.5005/jp-journals-10015-2068

License: CC BY-NC 4.0

Published Online: 22-07-2022

Copyright Statement:  Copyright © 2022; The Author(s).


Aim: The aim of the current research was to evaluate the results of two different disinfectants on the dimensional stability of two elastomeric impression materials. Materials and methods: A total of 120 samples were prepared in the present study. In accordance with the American Dental Association (ADA) specification number 19, a uniform stainless steel master die was constructed. In the current research, Imprint™ impression materials such as vinyl polysiloxanes (VPS) as well as a polyethers (PE), Impregum™, were used and manipulated as per the manufacturer's recommendations. To accomplish disinfection, 60 samples of either material were procured and allocated at random to one of the three groups: control group, 2% glutaraldehyde (GA) group, and 5.25% sodium hypochlorite (NaOCl) group. A stereomicroscope with 20× magnifying power was employed in the evaluation of the dimensional stability along with the aid of image investigation software. Results: In VPS impression material, most dimension-related changes were noted with control group at 0.80 ± 0.02 in pursuit by 2% GA use at 0.43 ± 0.08. The lowest changes in the dimensions were noted with 5.25% NaOCl use at 0.36 ± 0.01. In PE impression material, most dimension-related changes were noted with control group at 0.84 ± 0.09 in pursuit by 2% GA use at 0.49 ± 0.05. The lowest changes in the dimensions were noted with the use of 5.25% NaOCl group at 0.43 ± 0.05. The differences amid the groups using ANOVA were found to be statistically significant with a p <0.001. Conclusion: The results of this research indicate that either of the two elastomeric impression supplies that is VPS and PE showed little dimensional changes when subjected to immersion in two different disinfectants. Prolonged storage of samples disinfected with 5.25% hypochlorite and 2% GA may be utilized in the clinical set-up as the ensuing dimensional changes that result are quite less. Clinical significance: Infection control has raised a significant alarm for the dental practitioner lately due to increasing communicable diseases. A route of possible infection could be through dental impressions that on being taken out of the mouth get laced with microbes present in the patient's saliva as well as blood. Therefore, it is necessary to identify an appropriate disinfectant that would have lowest unfavorable effect on the dimensional exactness of elastomeric impression materials.

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