Journal of Conservative Dentistry
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Year : 2004  |  Volume : 7  |  Issue : 3  |  Page : 122-127

Evaluation Of Dimensional Stability Of Polyvinyl Siloxane Impression Materials Over A Period – An Invitro Study



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S Devalla


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This invitro study carried out on typhodont teeth, evaluated the dimensional stability of four different polyvinyl siloxane impression materials that include Provil-novo, Express, Aquasil and Virtual over a period of five days. Ten impressions of each of these materials were poured immediately, ten after 24 hrs. and ten after 5 days. The change in dimension was measured at reference point, which is present on master model. The result showed Aquasil to be the most and Provil-nova to be the least dimensionally stable.


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