Effect of surface roughness on amalgam repair using adhesive systems.
The objective of this in vitro study was to evaluate the effect of three surface treatments and two adhesive systems on the shear bond strength of old and freshly placed amalgam. The results suggested that the intact amalgam showed a significantly higher strength than repaired groups and the strongest repaired specimens were made when the amalgam surfaces were roughened with a diamond bur or microetcher. The adhesive systems showed no significant differences on bond strength with the same superficial texture.
Giannini
Marcelo
M
Department of Restorative Dentistry, Piracicaba School of Dentistry, UNICAMP, Piracicaba, SP, Brazil. giannini@fop.unicamp.br
Paulillo
Luis Alexandre Maffei Sartini
LA
Ambrosano
Gláucia Maria Bovi
GM
D000704:Analysis of Variance; D003723:Dental Amalgam; D001840:Dental Bonding / Q000379:methods*; D019232:Dental Restoration Failure; D003793:Dental Restoration, Permanent / Q000379:methods*; D017220:Dentin-Bonding Agents; D008422:Materials Testing; D008689:Methacrylates; D019279:Resin Cements; D019233:Retreatment; D033081:Shear Strength; D018709:Statistics, Nonparametric; D013499:Surface Properties
D017220:Dentin-Bonding Agents; D008689:Methacrylates; D019279:Resin Cements; C084018:Scotchbond Multi-Purpose; C100742:All-Bond 2; D003723:Dental Amalgam; C092423:Permite C