Oper Dent. 1992;Suppl 5:125-30.

Adhesive bonding with 4-META.

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Tokyo Medical and Dental University, Japan.

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.

PMID:: 1470541; [PubMed - indexed for MEDLINE]

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Dentin adhesion of "modified" 4-META/MMA-TBB resin: function of HEMA. [Dent Mater. 1992]
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