Adhesive Bonding of Various Materials to Hard Tooth Tissues. V. The Effect of a Surface-active Comonomer on Adhesion to Diverse Substrates

¹ American Dental Association, National Bureau of Standards, Washington, D.C.

The surface-active comonomer NPG-GMA (the adduct of N-phenylglycine and glycidyl methacrylate) did not improve bonding between a dental resin and surfaces of bovine tendon (predominantly collagen).

The evidence to date suggests that the mechanism by which the NPG-GMA coupling agent improves bonding between a methacrylate resin and hard tooth tissues may be primarily by interaction with the mineral phase rather than with the organic phase of the tooth structures.

The use of a 10 per cent acetone solution resulted in stronger bonds to dentin and enamel than did a 5 per cent ethanol solution of NPG-GMA.