Microleakage of resin composites with wet versus dry bonding.
OBJECTIVE
To evaluate the effects of wet and dry bonding on microleakage of Class V composite restorations.


METHODS
Cavity preparations were made in the buccal and lingual surfaces of 25 extracted human third molars. Half of each preparation was in enamel and the other half was in cementum/dentin. The preparations were randomly assigned to five groups for bonding with Scotchbond Dual-Cure (control), Scotchbond Multi-Purpose, or All-Bond 2. Scotchbond Multi-Purpose and All-Bond 2 were applied using both wet and dry techniques. All preparations were restored with a microfill composite after bonding. The specimens were thermocycled 300 times between 5 degrees and 55 degrees C and were subjected to a silver nitrate staining technique to detect marginal leakage.


RESULTS
Specimens bonded with All-Bond 2 and Scotchbond Multi-Purpose had significantly less leakage than the control. However, there was no statistically significant difference between wet and dry bonding techniques for either material.
Vargas
M A
MA
Department of Operative Dentistry, University of Iowa, Iowa City.
Swift
E J
EJ
D000704:Analysis of Variance; D003188:Composite Resins; D001840:Dental Bonding / Q000379:methods*; D003763:Dental Leakage; D018772:Dental Marginal Adaptation; D017220:Dentin-Bonding Agents; D006801:Humans; D008689:Methacrylates; D019279:Resin Cements; D018709:Statistics, Nonparametric; D014867:Water
C074864:All-Bond system; D003188:Composite Resins; D017220:Dentin-Bonding Agents; D008689:Methacrylates; D019279:Resin Cements; C084018:Scotchbond Multi-Purpose; D014867:Water; C074741:Silux Plus