title: Microleakage of resin composites with wet versus dry bonding.
abstract: 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.
authors.affiliation: Department of Operative Dentistry, University of Iowa, Iowa City.
authors.forename: M A
authors.initials: MA
authors.lastname: Vargas
authors.forename: E J
authors.initials: EJ
authors.lastname: Swift
mesh_terms: 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
chemical_list: 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