Mechanical properties of roots combined with prefabricated fiber post.
This study examined the mechanical properties of roots combined with prefabricated fiber post. Three types of specimens were evaluated: (1) prefabricated fiber post alone (FP); (2) core composite resin with FP (CFP); and (3) root with CFP (RCFP). The volume fractions of the prefabricated fiber post in the core composite resin (FP/CFP ratio) were set to 0, 0.16, 0.22, 0.28, and 0.48. Bending test for FP and CFP, and diametral compression test for FP, CFP, and RCFP were carried out. The FP/CFP ratio showed no effect on the diametral tensile strength (DTS) of RCFP; and there were no significant differences in DTS with/without FP. The flexural strength of CFP increased with increase in FP/CFP ratio. The DTS of CFP declined in comparison with that of core composite resin only.
Kono
Takashi
T
Department of Dental Materials Science, Tokyo Dental College, Mihama-ku, Chiba 261-8502, Japan. tkono@tdc.jp
Yoshinari
Masao
M
Takemoto
Shinji
S
Hattori
Masayuki
M
Kawada
Eiji
E
Oda
Yutaka
Y
D000704:Analysis of Variance; D000818:Animals; D001696:Biomechanical Phenomena; D002417:Cattle; D003188:Composite Resins / Q000737:chemistry*; D001840:Dental Bonding; D017267:Dental Prosthesis Design; D003786:Dental Pulp Cavity; D019232:Dental Restoration Failure; D003799:Dental Stress Analysis; D055119:Elastic Modulus; D018583:Pliability; D011176:Post and Core Technique / Q000295:instrumentation*; D018709:Statistics, Nonparametric; D013314:Stress, Mechanical; D013718:Tensile Strength; D014092:Tooth Root; D019553:Tooth, Nonvital
D003188:Composite Resins