Diametral tensile strength of four composite resin core materials with and without centered fiber dowels.
This study evaluated the diametral tensile strength of composite resin core materials with and without fiber dowels. Eight groups were established (n = 20), four with composite resins and four with fiber dowels. Samples were tested using a universal testing machine and evaluated using scanning electron microscopy. One-way ANOVA and a Tukey B-rank order test (P = 0.05) indicated that the tensile values of two of the four composite resins decreased significantly when their matching fiber dowels were introduced.
Schulich School of Medicine and Dentistry, University of Western Ontario, London, Ontario.
Cornel H
CH
Driessen
Donatta Y-J
DY
Ji
Amin S
AS
Rizkalla
Gildo C
GC
Santos
D003188:Composite Resins / Q000737:chemistry*; D003764:Dental Materials / Q000737:chemistry*; D019232:Dental Restoration Failure; D003799:Dental Stress Analysis / Q000295:instrumentation; D006801:Humans; D008855:Microscopy, Electron, Scanning; D011176:Post and Core Technique / Q000295:instrumentation*; D019279:Resin Cements / Q000737:chemistry; D013314:Stress, Mechanical; D013499:Surface Properties; D013718:Tensile Strength
D003188:Composite Resins; C079577:Core paste resin luting agent; D003764:Dental Materials; C423507:PermaFlow; D019279:Resin Cements