title: Dentinal wall adaptation of thermoplasticized gutta-percha in the absence or presence of smear layer: a scanning electron microscopic study.
abstract: The dentinal adaptation of injected thermoplasticized gutta-percha and thermoplasticized gutta-percha resulting from Ultrafil and Thermafil systems was evaluated by scanning electron microscopy and compared with adaptation obtained with the lateral condensation of gutta-percha. Each method was evaluated with and without the smear layer removed. Scanning electron microscopic observations showed the thermoplasticized gutta-percha resulting from either system to have better dentinal wall adaptation than lateral condensation of gutta-percha in either the absence or presence of the smear layer. In the absence of smear layer, the adaptation of gutta-percha was improved in all groups. Although sealer was used, removing the smear layer was found to enhance the ability of the thermoplasticized gutta-percha to enter the patent tubules.
authors.affiliation: Department of Endodontics, Marmara University, Faculty of Dentistry, Istanbul, Turkey.
authors.forename: N
authors.initials: N
authors.lastname: Gençoğlu
authors.forename: S
authors.initials: S
authors.lastname: Samani
authors.forename: M
authors.initials: M
authors.lastname: Günday
mesh_terms: D003786:Dental Pulp Cavity / Q000648:ultrastructure; D003804:Dentin / Q000648:ultrastructure*; D006171:Gutta-Percha / Q000737:chemistry; D006801:Humans; D008855:Microscopy, Electron, Scanning; D012389:Root Canal Obturation / Q000379:methods*; D016369:Smear Layer; D013499:Surface Properties
chemical_list: D006171:Gutta-Percha