Effect of Different Viscosity and Tear Strength of Polyvinyl Siloxane Impression Material on the Accuracy of Dental Implant Impressions | Abstract

International Journal of Medical Research & Health Sciences (IJMRHS)
ISSN: 2319-5886 Indexed in: ESCI (Thomson Reuters)


Effect of Different Viscosity and Tear Strength of Polyvinyl Siloxane Impression Material on the Accuracy of Dental Implant Impressions

Author(s):Yagthan Mohammed Haider, Norehan Mokhtar and Zubaida Tariq Najim

Introduction: The impression material accuracy is necessary for its direct effect on the precision of the impression of dental implants. Aims: This study aims to evaluate the effect of viscosity and tearing strength of 4 syringable polyvinyl siloxane impression materials (light body panasil, medium body silginat, medium body monopren, and heavy body panasil) all were manufactured by Kettenbach, Germany on the precision of dental implant impressions. Materials and methods: To evaluate the dental implant impression accuracy a polyvinyl siloxane was used with different types of viscosity and tear strength, and then the impression has been compared with the master cast which has been fabricated from the acrylic resin as a lower dental arch. For this, 4 parallel Straumann dental implant analogs, manufactured in Switzerland, were used. About 20 impressions were fabricated from each group (n=20) of the materials. To measure the impressions accuracy, the distance between each pair of analogs was measured using a digital microscope (Dino-Lite Digital Microscope, UK). Results: It was found that the tear strength of silginat (medium body) is higher than that of the rest of materials and the tear strength of monopren (medium body) is the least compared to the rest of the materials. Conclusion: Finally, it was concluded that the different viscosities and tear strength of polyvinyl siloxane impression material have no significant effect on the accuracy of the dental implant impressions.

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