title: Retentive properties of threaded split-shaft posts with titanium-reinforced composite cement.
abstract: The retention of posts in tooth roots is vital to the success of the restoration. This study compared the retention of posts of various sizes and diameters cemented with a titanium-reinforced composite cement with that of posts previously reported cemented with zinc phosphate cement. Four groups made up of 10 samples each were used and retention values were compared using a universal testing machine. Two-way analysis of variance and the Newman-Keuls multiple range comparison test were performed. Larger diameter posts cemented with titanium cement had better retention than similar posts cemented with zinc phosphate cement. The statistical increase in retention for the larger size posts is probably the result of the deeper channels (threads) in the dentin and the higher cohesive strength for the titanium-reinforced composite resin.
authors.affiliation: Essential Dental Laboratories, S. Hackensack, N.J.
authors.forename: B I
authors.initials: BI
authors.lastname: Cohen
authors.forename: S
authors.initials: S
authors.lastname: Condos
authors.forename: B L
authors.initials: BL
authors.lastname: Musikant
authors.forename: A S
authors.initials: AS
authors.lastname: Deutsch
mesh_terms: D003188:Composite Resins / Q000737:chemistry*; D003738:Dental Cements / Q000737:chemistry*; D003799:Dental Stress Analysis; D003781:Denture Retention; D006801:Humans; D011176:Post and Core Technique; D011475:Prosthesis Failure; D019279:Resin Cements; D013499:Surface Properties; D013718:Tensile Strength; D014025:Titanium / Q000737:chemistry*; D015036:Zinc Phosphate Cement / Q000737:chemistry
chemical_list: D003188:Composite Resins; D003738:Dental Cements; C079579:Flex-Flow cement; D019279:Resin Cements; D015036:Zinc Phosphate Cement; D014025:Titanium