title: Microleakage of a new dental adhesive comparing microfilled and hybrid resin composites.
abstract: The objective of this study was to evaluate the in vitro microleakage of a new adhesive system, Syntac. Class V preparations were cut at the cementoenamel junction in 20 extracted bovine incisors and 20 extracted human incisors. One group of 10 human and 10 bovine teeth was restored with Syntac and a microfilled posterior resin composite; the other group was restored with Syntac and a hybrid resin composite. Microleakage was evaluated at 1 week with a 45Ca radioisotope method. No statistically significant differences between human and bovine substrates were found with either resin composite. The Syntac/hybrid resin restorations leaked less than did the Syntac/microfilled resin restorations at the gingival (dentin) margin in the bovine teeth; however, this difference was not statistically significant.
authors.affiliation: Department of Restorative Dentistry, University of Mississippi Medical Center, Jackson 39216, USA.
authors.forename: J G
authors.initials: JG
authors.lastname: Fitchie
authors.forename: A D
authors.initials: AD
authors.lastname: Puckett
authors.forename: G W
authors.initials: GW
authors.lastname: Reeves
authors.forename: J H
authors.initials: JH
authors.lastname: Hembree
mesh_terms: D000179:Acrylates; D000180:Acrylic Resins; D000818:Animals; D002417:Cattle; D003188:Composite Resins / Q000737:chemistry*; D003763:Dental Leakage; D003793:Dental Restoration, Permanent / Q000379:methods*; D017220:Dentin-Bonding Agents; D006801:Humans; D011140:Polyurethanes; D019279:Resin Cements; D018709:Statistics, Nonparametric
chemical_list: D000179:Acrylates; D000180:Acrylic Resins; C029012:Composite Dental Resin; D003188:Composite Resins; D017220:Dentin-Bonding Agents; D011140:Polyurethanes; D019279:Resin Cements; C078484:Syntac dentine adhesive; C073466:Prisma APH; C040415:heliobond