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Silicone impression materials and latex gloves. Is interaction fact or fallacy?
Yaman Walid1, Ziad Al-Ani, Robin Gray
1King's College London Dental Institute, UK.
Dental Update
|June 23, 2012
Summary
Latex inhibits polyvinyl siloxane impression materials, delaying their setting. This review examines the evidence and provides clinical recommendations for accurate dental impressions.
Area of Science:
- Dental Materials Science
- Polymer Chemistry
Background:
- Polyvinyl siloxane (PVS) impression materials are widely used in dentistry.
- Latex is a common material encountered in clinical settings.
- Potential interactions between latex and PVS can affect impression accuracy.
Purpose of the Study:
- To investigate the inhibitory effect of latex on the setting of PVS impression materials.
- To review the scientific evidence supporting or refuting this interaction.
- To discuss the clinical implications for indirect restoration fabrication.
Main Methods:
- Literature review of scientific publications.
- Analysis of studies examining PVS setting times in the presence of latex.
- Evaluation of evidence for and against latex inhibition.
Main Results:
- Evidence suggests latex can indeed inhibit the setting of PVS materials.
- Sulfur compounds in latex are implicated as the inhibitory agents.
- Inconsistent findings exist, necessitating careful clinical consideration.
Conclusions:
- Accurate PVS impressions are crucial for successful indirect restorations.
- Understanding latex inhibition is vital for predictable clinical outcomes.
- Recommendations for minimizing inhibition are provided.
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