Review
Adhesive bonding with 4-META
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- PMID: 1470541
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Review
Adhesive bonding with 4-META
Oper Dent.
1992.
Abstract
Research into improved adhesion of resins to tooth substrates has found that methacrylates with both hydrophobic and hydrophilic groups, like 4-methacryloxyethyl trimellitate anhydride (4-META), enhance monomer penetration into dentin pretreated with 10% citric acid and 3% ferric chloride (10-3). Scanning and transmission electron microscope (SEM and TEM) examinations revealed the formation of a transitional zone of resin-reinforced dentin, termed the hybrid layer. The 4-META adhesive resin impregnated the exposed collagen bundles with which it entangled to create the hybrid, essential to attaining high tensile bond strengths.
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