Effect of infection control aids on polymerization inhibition of polyvinyl siloxane impression materials e An invitro study

Mundathaje, Mahesh and 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. pp. 18-21. ISSN 0975-962X

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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 polyvinyl impression materials.

Item Type: Article
Uncontrolled Keywords: Polymerization inhibition Polyvinyl siloxane Latex gloves Surfactants Infection control
Subjects: Dentistry > MCODS Mangalore > Prosthodontics
Depositing User: KMCMLR User
Date Deposited: 10 Jul 2014 10:30
Last Modified: 10 Jul 2014 10:30
URI: http://eprints.manipal.edu/id/eprint/140073

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