Tensile bone strength of Panavia Ex to a Ni-Cr alloy using different surface treatments.
Panavia Ex resin has been claimed to require only air abrasion of the alloy with 50 micrometers aluminum oxide particles to reach acceptable bond strength values. This study discusses the consequences of changes in the type of air abrasion and surface oxidation of the alloy. Thirty pairs of discs of a Ni-Cr alloy were treated by three methods: 1) air abrasion with 50 micrometers aluminum oxide (control); 2) air abrasion with glass beads; 3) air abrasion with a mixture of aluminum oxide and glass beads (ratio 1:1). The Tukey test showed statistical differences only for air abrasion with glass beads.
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Hospital de Reabilitacão, Faculdade de Odontologia, USP, Bauru, SP, Brasil.
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D000388:Air; D000537:Aluminum Oxide; D000704:Analysis of Variance; D002858:Chromium Alloys / Q000737:chemistry; D001840:Dental Bonding / Q000379:methods; D003738:Dental Cements; D003775:Dental Polishing / Q000379:methods*; D005898:Glass; D008422:Materials Testing; D009532:Nickel / Q000737:chemistry; D010710:Phosphates; D019279:Resin Cements; D013499:Surface Properties; D013718:Tensile Strength
D002858:Chromium Alloys; D003738:Dental Cements; D010710:Phosphates; D019279:Resin Cements; D009532:Nickel; C052304:Panavia EX; D000537:Aluminum Oxide