title: Influence of luting agent translucency on fiber post retention.
abstract: The aim was to assess the influence of cement translucency on the retentive strength of luted fiber posts. Twenty extracted human premolars were randomly divided into four equal groups, based on the combinations of materials to be tested. Two post types of the same size, shape, and chemical composition, but different light-transmission properties [Translucent post (TP) and Opaque post (OP)] were selected. The two post types were luted using the etch-and-rinse, light-curing adhesive in combination with two shades of the same resin cement of markedly different light-transmitting ability [Transparent shade (TS) and Opaque shade (OS)]. Early post retention was assessed using the thin-slice push-out test. Post type did not significantly influence post retention; however, cement translucency emerged as a relevant factor in intraradicular cementation, with the TS achieving higher push-out strengths. The between-factor interaction was also statistically significant; specifically, OP-OS yielded significantly lower retentive strengths than all the other groups. Post translucency did not influence post retention, provided that a highly translucent cement was utilized for luting.
authors: Department of Medical Biotechnologies, University of Siena, Siena, Italy; Clinic for Pediatric and Preventive Dentistry, School of Dentistry, University of Belgrade, Belgrade, Serbia.
authors: Jelena
authors: J
authors: Juloski
authors: Cecilia
authors: C
authors: Goracci
authors: Nino
authors: N
authors: Tsintsadze
authors: Michele
authors: M
authors: Carrabba
authors: Alessandro
authors: A
authors: Vichi
authors: Zoran R
authors: ZR
authors: Vulicevic
authors: Marco
authors: M
authors: Ferrari
mesh_terms: D000293:Adolescent; D000328:Adult; D002484:Cementation / Q000379:methods; D003188:Composite Resins / Q000737:chemistry*; D001840:Dental Bonding; D003764:Dental Materials / Q000737:chemistry*; D017268:Dental Prosthesis Retention; D005898:Glass / Q000737:chemistry; D006801:Humans; D008027:Light; D008422:Materials Testing; D008689:Methacrylates / Q000737:chemistry; D008875:Middle Aged; D011176:Post and Core Technique / Q000295:instrumentation*; D011897:Random Allocation; D019279:Resin Cements / Q000737:chemistry*; D013053:Spectrophotometry / Q000295:instrumentation; D013314:Stress, Mechanical; D055815:Young Adult
chemical_list: D003188:Composite Resins; D003764:Dental Materials; C420130:Excite cement; D008689:Methacrylates; D019279:Resin Cements; C009753:fiberglass; C103502:Variolink
keywords: fiber post; light transmission; push-out bond strength; resin cement; translucency