The quasi-three-dimensional marginal leakage of full-coverage crowns: resin coating versus sodium hypochlorite treatment.
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.
Kawahara
Daizo
D
Department of Oral and Maxillofacial Rehabilitation, Okayama University, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan.
Mine
Atsushi
A
De Munck
Jan
J
Kuboki
Takuo
T
Yoshida
Yasuhiro
Y
Suzuki
Kazuomi
K
Van Meerbeek
Bart
B
Yatani
Hirofumi
H
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*
D017220:Dentin-Bonding Agents; D019279:Resin Cements; D012973:Sodium Hypochlorite