title: Coronal leakage inhibition in endodontically treated teeth using resin-coating technique.
abstract: The purpose of this study was to evaluate coronal leakage inhibition using a resin-coating technique after endodontic treatment. Thirty-six human incisors were cut at the cementoenamel junction, and endodontic obturations were performed. The specimens were randomly divided into three groups according to post space preparation (10 mm depth), resin coating, and temporization. For the resin coating, the dentin surface was coated with either a combination of Clearfil SE Bond and Protect Liner F (SE/PLF) or RZII (RZ). Then, the specimens were stored in 37 degrees C distilled water for 24 hours and placed in 1% methylene blue solution for 48 hours. After which, the specimens were sectioned faciolingually along the root canal and the length of dye penetration was measured from the cementoenamel junction. Three-way ANOVA revealed that the dye penetration scores were influenced by post space preparation, resin coating, and temporization. Resin coating with RZ significantly reduced the dye penetration score and SE/PLF completely eliminated dye penetration.
authors.affiliation: Cariology and Operative Dentistry, Department of Restorative Sciences, Graduate School, Tokyo Medical and Dental University, Japan. maruoka.ope@tmd.ac.jp
authors.forename: Rena
authors.initials: R
authors.lastname: Maruoka
authors.forename: Toru
authors.initials: T
authors.lastname: Nikaido
authors.forename: Masaomi
authors.initials: M
authors.lastname: Ikeda
authors.forename: Tomoyasu
authors.initials: T
authors.lastname: Ishizuka
authors.forename: Richard M
authors.initials: RM
authors.lastname: Foxton
authors.forename: Junji
authors.initials: J
authors.lastname: Tagami
mesh_terms: D000704:Analysis of Variance; D001840:Dental Bonding / Q000379:methods*; D003763:Dental Leakage / Q000517:prevention & control*; D017220:Dentin-Bonding Agents / Q000627:therapeutic use*; D006801:Humans; D019279:Resin Cements / Q000737:chemistry*; D019553:Tooth, Nonvital / Q000628:therapy*
chemical_list: D017220:Dentin-Bonding Agents; D019279:Resin Cements