title: Laboratory evaluation of phosphate ester bonding agents.
abstract: Two dentin bonding agents that contain phosphorus esters, (Clearfil Photo Bond and Panavia), and a bonding agent for porcelain, (Clearfil Porcelain Bond), have been introduced for bonding to enamel, dentin, amalgam, cast metal alloys and porcelain. The shear bond strengths were determined to enamel (Procedure A), to dentin (Procedure B), to amalgam (Procedure C), of amalgam to dentin (Procedure D), to cast metal alloy (Procedure E) and to porcelain (Procedure F). Also the quantitative microleakage of Class V restorations in cementum (dentin) was evaluated (Procedure G). The components were applied as directed by the manufacturer and a light-cured resin composite for posterior teeth, (Clearfil Photo Posterior) used. The mean +/- SD of the shear bond strengths recorded in MPa were: A = 24.15 +/- 3.65; B = 11.30 +/- 3.12; C = 13.77 +/- 3.42; D = 4.26 +/- 0.92; E = 17.84 +/- 3.19; F = 13.45 +/- 4.12. The quantitative microleakage (G) was 0.55 +/- 0.34 mg dye/restoration.
authors.affiliation: Faculdade de Odontologia, Bauru, Brazil.
authors.forename: M H
authors.initials: MH
authors.lastname: Souza
authors.forename: D H
authors.initials: DH
authors.lastname: Retief
authors.forename: C M
authors.initials: CM
authors.lastname: Russell
authors.forename: F R
authors.initials: FR
authors.lastname: Denys
mesh_terms: D000704:Analysis of Variance; D002858:Chromium Alloys; D003188:Composite Resins; D003722:Dental Alloys; D003723:Dental Amalgam; D001840:Dental Bonding; D003738:Dental Cements / Q000737:chemistry*; D003743:Dental Enamel; D003763:Dental Leakage; D003776:Dental Porcelain; D003804:Dentin; D017220:Dentin-Bonding Agents / Q000737:chemistry; D004952:Esters; D005069:Evaluation Studies as Topic; D006801:Humans; D008422:Materials Testing; D008855:Microscopy, Electron, Scanning; D010710:Phosphates; D019279:Resin Cements; D013718:Tensile Strength
chemical_list: D002858:Chromium Alloys; C076805:Clearfil Porcelain Bond; D003188:Composite Resins; D003722:Dental Alloys; D003738:Dental Cements; D017220:Dentin-Bonding Agents; D004952:Esters; D010710:Phosphates; D019279:Resin Cements; D003776:Dental Porcelain; C074669:Clearfil Photo Bond; C036886:tytin; C036884:Rexillium III; D003723:Dental Amalgam; C072674:Clearfil Posterior; C052304:Panavia EX