Effect of Infection Control Aids on Polymerization Inhibition of Polyvinyl Siloxane Impression Materials e An Invitro Study

Hegde, Veena (2013) Effect of Infection Control Aids on Polymerization Inhibition of Polyvinyl Siloxane Impression Materials e An Invitro Study. Indian Journal of Dentistry, 4 (1). pp. 18-21.

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Objectives: To evaluate the effect of infection control aids (latex gloves in contact with surfactants) upon polymerization during manipulation of different types of polyvinyl siloxane impression materials. Materials: Three types of polyvinyl siloxane impression materials, (Examix, Affinis and Aquasil Ultra) were tested under four surface treatment conditions (alcohol, water, soap/ water and unexposed glass surface as control) with two types of latex gloves (powdered and powder free). This resulted in a 3 � 4 � 2 experimental design of 24 cells with 20 specimens each. Methods: PVS impression material was expressed onto the glass surface conditioned with surfactant resulting in specimens (n ¼ 20). The specimens were lifted from the testing surface at the applicable time, and the contact areas were examined independently by 2 of the authors to subjectively determine whether polymerization inhibition had occurred.Polymerization inhibition frequency was calculated for each group, and chi-square analysis and fissures exact test were used to determine whether there was a statistically significant relationship between polymerization inhibition in any of the study conditions (P < 0.05).Results: The results of this data showed significant increase in the polymerization inhibition of Examix and Affinis along with glove/alcohol combination. Comparison of the powdered/powder free glove groups found that there is no significant difference between these groups. Conclusion/clinical significance: Use of latex gloves along with alcohol should be avoided (simulation can happen during clinical practice) while manipulating olyvinyl impression materials.

Item Type: Article
Uncontrolled Keywords: Polymerization inhibition; Polyvinyl siloxane; Latex gloves; Surfactants; Infection control
Subjects: Dentistry > MCODS Manipal > Prosthodontics
Depositing User: KMC Manipal
Date Deposited: 04 Dec 2013 06:12
Last Modified: 04 Dec 2013 06:12
URI: http://eprints.manipal.edu/id/eprint/137893

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