Acid-base properties of adhesive dental polymers.
The surface energetics of three resins (polymethylmethacrylate, polyhydroxyethylmethacrylate, and Bis-GMA/triethyleneglycoldimethacrylate) commonly used in adhesive interactions with tooth hard tissues were evaluated according to the Fowkes acid-base theory of interfacial interactions. From the measurement of the contact angle of test acidic and basic liquids on the sample surfaces, the acid-base contribution to the work of adhesion was evaluated. Results show that polyhydroxyethylmethacrylate is a comparatively strong Lewis base, a finding that can explain the important role played by this material in the formulation of dentin adhesive.
Morra
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Nobil Bio Ricerche Strada, Villafranca d'Asti, Italy.
D000268:Adhesiveness; D000704:Analysis of Variance; D017438:Bisphenol A-Glycidyl Methacrylate / Q000737:chemistry; D003188:Composite Resins / Q000737:chemistry*; D017220:Dentin-Bonding Agents / Q000737:chemistry*; D017886:Durapatite / Q000737:chemistry; D006863:Hydrogen-Ion Concentration; D008422:Materials Testing; D008689:Methacrylates / Q000737:chemistry; D008768:Methylmethacrylates / Q000737:chemistry; D011092:Polyethylene Glycols / Q000737:chemistry; D011102:Polyhydroxyethyl Methacrylate / Q000737:chemistry; D011109:Polymethacrylic Acids / Q000737:chemistry*; D013499:Surface Properties; D013500:Surface Tension; D017155:Wettability
D003188:Composite Resins; D017220:Dentin-Bonding Agents; D008689:Methacrylates; D008768:Methylmethacrylates; D011109:Polymethacrylic Acids; C020946:triethylene glycol dimethacrylate; D011102:Polyhydroxyethyl Methacrylate; D011092:Polyethylene Glycols; D017438:Bisphenol A-Glycidyl Methacrylate; C005044:hydroxyethyl methacrylate; D017886:Durapatite