title: Diametral tensile strength of composite core material with cured and uncured fiber posts.
abstract: The aim of this study was to determine the influence of different types of posts and post head designs on the fracture resistance of a composite resin core material using the diametral tensile strength (DTS ). Seventy-five disc specimens were prepared using a composite core and prefabricated glass fiber posts and were divided into four test groups and one control group (n=15). The use of fiber posts reduced the DTS of the composite core material; the DTS value of the control material was significantly higher (p=0.05) than all of the test groups.
authors: Department of Dental Materials and Prosthodontics, Sao Jose dos Campos Dental School, Sao Paulo State University, Sao Jose dos Campos, SP, Brazil.
authors: Sheila Pestana
authors: SP
authors: Passos
authors: Maria Jacinta M C
authors: MJ
authors: Santos
authors: Omar
authors: O
authors: El-Mowafy
authors: Amin S
authors: AS
authors: Rizkalla
authors: Gildo Coelho
authors: GC
authors: Santos
mesh_terms: D003188:Composite Resins / Q000737:chemistry*; D003764:Dental Materials / Q000737:chemistry*; D017267:Dental Prosthesis Design; D003799:Dental Stress Analysis / Q000295:instrumentation; D005898:Glass / Q000737:chemistry*; D006801:Humans; D008422:Materials Testing; D055668:Photochemical Processes; D058105:Polymerization; D011108:Polymers / Q000737:chemistry; D011176:Post and Core Technique / Q000295:instrumentation*; D013314:Stress, Mechanical; D013696:Temperature; D013718:Tensile Strength; D013997:Time Factors; D014867:Water / Q000737:chemistry
chemical_list: D003188:Composite Resins; D003764:Dental Materials; D011108:Polymers; C496140:everStick; C009753:fiberglass; C509952:fiberglass reinforced polymers; D014867:Water