Dimensional stability of polyvinyl siloxane impression material reproducing the sulcular area
| Autor: | Noga Harel, Guy Levy, Raphael Pilo, Tamar Brosh, Yehuda Ganor, Shifra Levartovsky |
|---|---|
| Rok vydání: | 2013 |
| Předmět: |
Dental Impression Technique
Materials science Siloxanes Dental Impression Materials Gingiva Dental Abutments Finish line Models Dental Impression Negative deviation Polyvinyl siloxane Materials Testing Polymer chemistry Linear Models Ceramics and Composites Humans Polyvinyls Gingival sulcus General Dentistry Abutment (dentistry) Biomedical engineering |
| Zdroj: | Dental Materials Journal. 32:25-31 |
| ISSN: | 1881-1361 0287-4547 |
| DOI: | 10.4012/dmj.2012-046 |
| Popis: | The dimensional stability of a thin intra sulcular impression material reproducing the preparation finish line was evaluated. Impressions were taken of a stainless-steel master model of a simulated abutment with a 'gingival sulcus' using Express regular, Express fast and Aquasil. The putty-wash two-step technique was applied with spacer thicknesses of 0.5, 1 and 1.5 mm. Mid mesiodistal and bucco-lingual measurements were taken directly from the sulcular impression material after 0.5, 2, 24, 48 and 72 h via a Toolmaker's microscope. The discrepancies between the measurements of the impression material and the master model were calculated. The discrepancies changed significantly over time (p |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|