title: Leakage of a light-activated base: effect of dentin bonding agents.
abstract: This study investigated the sealing properties of Cavalite light-activated base material in conjunction with various dentin bonding agents. Thirty extracted molars were selected and cleaned. Slot preparations with standard dimensions were made. The prepared cavities were filled with Cavalite material after application of the dentin bonding agents Gluma, Prisma Universal Bond, Scotchbond 2, and Tenure. Samples were thermocycled for 180 cycles between 3 degrees C and 60 degrees C, then immersed in 0.05% crystal violet solution for 2 hours. The samples were embedded in clear casting resin, sectioned, and examined with a light microscope. Results indicated that Cavalite material used alone, without a dentin bonding agent, allowed the greatest degree of dye penetration. Cavalite material with Tenure bonding agent had the lowest degree of leakage. Cavalite material used with Scotchbond 2, Gluma, or Prisma Universal Bond bonding agents allowed an intermediate degree of dye penetration. According to an analysis of variance, however, there was no statistical difference in the effects of Tenure, Scotchbond 2, and Gluma bonding agents.
authors.affiliation: Department of Operative Dentistry, University of Iowa, College of Dentistry, Iowa City.
authors.forename: K C
authors.initials: KC
authors.lastname: Chan
authors.forename: E J
authors.initials: EJ
authors.lastname: Swift
mesh_terms: D000180:Acrylic Resins / Q000737:chemistry*; D000269:Adhesives / Q000737:chemistry*; D000704:Analysis of Variance; D003188:Composite Resins / Q000737:chemistry; D001840:Dental Bonding; D003736:Dental Cavity Lining; D003738:Dental Cements / Q000737:chemistry; D003763:Dental Leakage / Q000175:diagnosis / Q000517:prevention & control*; D003793:Dental Restoration, Permanent; D003804:Dentin; D017220:Dentin-Bonding Agents; D005840:Gentian Violet; D005976:Glutaral / Q000737:chemistry; D006801:Humans; D006882:Hydroxyapatites / Q000737:chemistry*; D011109:Polymethacrylic Acids / Q000737:chemistry; D019279:Resin Cements; D012822:Silicon Dioxide / Q000737:chemistry*
chemical_list: D000180:Acrylic Resins; D000269:Adhesives; D003188:Composite Resins; D003738:Dental Cements; D017220:Dentin-Bonding Agents; D006882:Hydroxyapatites; D011109:Polymethacrylic Acids; D019279:Resin Cements; C062652:Prisma Universal Bond; D012822:Silicon Dioxide; C041330:Scotchbond; C044372:Gluma; C061123:Cavalite; D005840:Gentian Violet; D005976:Glutaral