title: An in-vitro comparative study of the retention of grooved and flat endodontic posts in treated root canals using two different types of cements.
abstract: This study evaluated and compared the retentive capability of performed cast posts in endodontically treated premolar teeth using the following: 1--smooth versus grooved post design 2--surface treatment of the root canals with either 17% EDTA followed by 2.25% Naocl or using Naocl only. 3--cementation of the posts with either polycarboxylate cement or C & B Metabond. Cast metal posts were made, cemented in root canals and divided into groups representing combinations of variables. The force required for post removal were recorded and statistically analysed. The results indicated that cementation of the grooved cast metal post with polycarboxylate cement after removal of the smear layer was the most retentive system. More over C & B Metabond resin cement with any post design in presence or absence of smear layer gave high retentive values.
authors.affiliation: Crown and Bridge Dep., Faculty of Oral and Dental medicine, Cairo University.
authors.forename: A N
authors.initials: AN
authors.lastname: Mohammed
authors.forename: R E
authors.initials: RE
authors.lastname: Seif
authors.forename: M
authors.initials: M
authors.lastname: Wahbi
mesh_terms: D001641:Bicuspid; D001896:Boron Compounds / Q000627:therapeutic use*; D002484:Cementation; D003738:Dental Cements / Q000627:therapeutic use*; D017267:Dental Prosthesis Design / Q000706:statistics & numerical data; D005069:Evaluation Studies as Topic; D006801:Humans; D066298:In Vitro Techniques; D008689:Methacrylates / Q000627:therapeutic use*; D008768:Methylmethacrylates / Q000627:therapeutic use*; D011076:Polycarboxylate Cement / Q000627:therapeutic use*; D011176:Post and Core Technique / Q000295:instrumentation* / Q000706:statistics & numerical data; D012390:Root Canal Therapy / Q000379:methods; D018709:Statistics, Nonparametric
chemical_list: D001896:Boron Compounds; D003738:Dental Cements; D008689:Methacrylates; D008768:Methylmethacrylates; D011076:Polycarboxylate Cement; C049495:Super-bond