title: Microleakage of root restorations.
abstract: This study evaluated the microleakage of various restorative materials placed in root surfaces. A minimum of 20 freshly extracted single-rooted teeth were used for each combination of restorative materials. Four preparations were made on the root surface and each restored with a different material. After thermocycling in dye, the root was cut transversely in several sections through the restoration, and microscopically examined to record the microleakage at the interface between restorative materials and tooth. Results indicated that fewer composite resin specimens allowed microleakage into dentin as compared with either amalgam or glass ionomer materials.
authors.affiliation: Department of Restorative Dentistry, School of Dentistry, Medical College of Georgia, Augusta 30912-0200.
authors.forename: K K
authors.initials: KK
authors.lastname: Wenner
authors.forename: C W
authors.initials: CW
authors.lastname: Fairhurst
authors.forename: C F
authors.initials: CF
authors.lastname: Morris
authors.forename: I K
authors.initials: IK
authors.lastname: Hawkins
authors.forename: R D
authors.initials: RD
authors.lastname: Ringle
mesh_terms: D003188:Composite Resins; D003722:Dental Alloys; D003723:Dental Amalgam; D001840:Dental Bonding; D003763:Dental Leakage / Q000175:diagnosis*; D003764:Dental Materials; D003793:Dental Restoration, Permanent; D003804:Dentin / Q000648:ultrastructure; D005899:Glass Ionomer Cements; D006801:Humans; D008298:Maleates; D012394:Rosaniline Dyes; D013499:Surface Properties; D014092:Tooth Root
chemical_list: D003188:Composite Resins; D003722:Dental Alloys; D003764:Dental Materials; D005899:Glass Ionomer Cements; D008298:Maleates; D012394:Rosaniline Dyes; C033470:Dispersalloy; D003723:Dental Amalgam; C040964:Ketac-Fil; C049240:aurafill