title: Evaluation of microleakage in tenure-based restorations.
abstract: This study evaluates the effects of six composite resins, which use three different curing systems, on the ability of Tenure to resist microleakage. The curing systems were a photoinitiated dual-cure system, a dual-cure system, and light-cure systems. A total of 39 human molars were used. Following 2,000 cycles on a thermocycler, specimens were exposed to 0.2 percent basic fuchsin dye for 24 hours and then examined for microleakage. Results indicated that the composite resin plays an important role in the ability of a restorative system to resist microleakage. The photoinitiated dual-cure system produced significantly less microleakage than light-activated systems. No difference in microleakage was found between light-activated systems and the dual-cure system.
authors.affiliation: Dental Hospital, The Fourth Military Medical University, Xian, P.R. China.
authors.forename: X Y
authors.initials: XY
authors.lastname: Yu
authors.forename: E L
authors.initials: EL
authors.lastname: Davis
authors.forename: R B
authors.initials: RB
authors.lastname: Joynt
authors.forename: G
authors.initials: G
authors.lastname: Wieczkowski
mesh_terms: D003188:Composite Resins; D001840:Dental Bonding; D003738:Dental Cements; D003763:Dental Leakage / Q000517:prevention & control*; D006801:Humans; D009566:Nitrates; D017942:Nitric Acid; D010070:Oxalates
chemical_list: D003188:Composite Resins; D003738:Dental Cements; D009566:Nitrates; D010070:Oxalates; C061140:Tenure Dentin Conditioner; D017942:Nitric Acid