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Biological evaluation of a polyvinyl siloxane impression material
Gabriela Mazzanti1, Claudia Daniele, Beatrice Tita
1Department of Pharmacology of Natural Substances and General Physiology, University La Sapienza, Rome, Italy.
Summary
This study found that the new Ghenesil polyvinyl siloxane impression material exhibits negligible primary skin irritation in rabbits. The material was tested according to ISO 10993-10 standards, showing a Primary Irritation Index (PII) of 0.06.
Area of Science:
- Biocompatibility testing
- Dermatology
- Materials science
Background:
- Dental impression materials require rigorous biocompatibility assessment.
- Polyvinyl siloxane (PVS) is a common material in dentistry.
- Evaluating new PVS formulations for potential skin irritation is crucial for patient safety.
Purpose of the Study:
- To assess the primary skin irritant properties of a novel polyvinyl siloxane impression material, Ghenesil.
- To determine the biocompatibility of Ghenesil through dermatological testing in a preclinical model.
Main Methods:
- The study followed UNI EN ISO 10993-10 guidelines for primary skin irritation testing.
- Three New Zealand White rabbits were used, with the material applied to clipped skin sites.
- Skin irritation was evaluated over 72 hours, calculating the Primary Irritation Index (PII).
Main Results:
- The Ghenesil polyvinyl siloxane impression material demonstrated a Primary Irritation Index (PII) of 0.06.
- This PII value indicates a very low level of skin irritation.
Conclusions:
- The tested polyvinyl siloxane impression material (Ghenesil) can be considered to have negligible primary skin irritation.
- These findings support the safety profile of Ghenesil for applications involving skin contact.