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Disclosing Agent for Resin Composite Based on Adsorption Surface Treatment.
Yara Oweis1,2, Amir El-Hadad1, Mohamed Mezour1
1Faculty of Dentistry, McGill University, Montreal, Quebec H3A 1G1, Canada.
ACS Applied Bio Materials
|January 10, 2022
Summary
A new composite disclosing agent helps dentists identify and remove dental resin composites. Methyl salicylate selectively binds to composite resin, not tooth enamel, aiding precise removal and protecting healthy tooth structure.
Area of Science:
- Dental materials science
- Biomaterials engineering
- Organic chemistry
Background:
- Distinguishing composite resin from tooth structure is crucial for complete removal.
- Incomplete composite removal can damage sound tooth tissues.
- Current methods for identifying resin-composite margins can be challenging.
Purpose of the Study:
- To develop and characterize a novel composite disclosing agent.
- To identify molecules that selectively interact with composite resin.
- To ensure the agent facilitates complete resin removal without damaging tooth structure.
Main Methods:
- Characterization of organic molecule interactions with composite resin and tooth enamel.
- Spectrophotometry and other techniques to verify selective staining.
- Clinical pilot study in orthodontic patients to confirm optimal staining conditions.
Main Results:
- Identified organic molecules with phenyl groups, similar to composite monomers, as potential candidates.
- Methyl salicylate demonstrated selective adsorption to composite resin via Van Der Waals forces.
- The agent did not adsorb to tooth enamel, confirming selectivity.
- Clinical evaluation validated the agent's efficacy in identifying resin boundaries.
Conclusions:
- A novel composite disclosing agent was successfully developed.
- Methyl salicylate acts as an effective primer for the disclosing agent by selectively binding to composite resin.
- This agent facilitates precise composite resin identification and removal, preserving healthy tooth structure.
