title: The quasi-three-dimensional marginal leakage of full-coverage crowns: resin coating versus sodium hypochlorite treatment.
abstract: This study compared the effects of various surface treatments and techniques on the marginal leakage of full-coverage crowns using a quasi-three-dimensional evaluation. Crowns were cast using a gold-silver-palladium alloy by means of the lost-wax technique. Twenty-eight recently extracted human molars were divided randomly into four groups according to surface treatment before crown cementation: (1) no pretreatment (negative control), (2) primer (positive control), (3) resin coating and primer, and (4) phosphoric acid, sodium hypochlorite, and primer. All specimens were cemented with composite cement. The lowest marginal leakage was observed in group 4. Variation in marginal leakage between specimens originating from the same tooth was observed.
authors.affiliation: Department of Oral and Maxillofacial Rehabilitation, Okayama University, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan.
authors.forename: Daizo
authors.initials: D
authors.lastname: Kawahara
authors.forename: Atsushi
authors.initials: A
authors.lastname: Mine
authors.forename: Jan
authors.initials: J
authors.lastname: De Munck
authors.forename: Takuo
authors.initials: T
authors.lastname: Kuboki
authors.forename: Yasuhiro
authors.initials: Y
authors.lastname: Yoshida
authors.forename: Kazuomi
authors.initials: K
authors.lastname: Suzuki
authors.forename: Bart
authors.initials: B
authors.lastname: Van Meerbeek
authors.forename: Hirofumi
authors.initials: H
authors.lastname: Yatani
mesh_terms: D000704:Analysis of Variance; D003442:Crowns; D001840:Dental Bonding / Q000379:methods*; D045662:Dental Etching / Q000379:methods*; D003763:Dental Leakage / Q000517:prevention & control*; D003804:Dentin; D017220:Dentin-Bonding Agents; D006801:Humans; D008963:Molar; D019279:Resin Cements; D012973:Sodium Hypochlorite; D018709:Statistics, Nonparametric; D013499:Surface Properties; D019231:Tooth Preparation, Prosthodontic / Q000379:methods*
chemical_list: D017220:Dentin-Bonding Agents; D019279:Resin Cements; D012973:Sodium Hypochlorite