TY - JOUR
T1 - Effect of implant diameter on reliability and failure modes of molar crowns
AU - Freitas-Junior, Amilcar C.
AU - Bonfante, Estevam A.
AU - Martins, Leandro M.
AU - Silva, Nelson R F A
AU - Marotta, Leonard
AU - Coelho, Paulo G.
PY - 2011
Y1 - 2011
N2 - The reliability and failure modes of molar crowns supported by three different implant-supported designs were tested according to the following groups: group 1, one standard-diameter implant (3.75 mm); group 2, one narrow-diameter implant (3 mm); and group 3, two narrow-diameter implants (3 mm). Loads were applied as mouth-motion cycles using a step-stress accelerated life-testing method. β values for groups 1 and 3 (1.57 and 2.48, respectively) indicated that fatigue accelerated the failure of both groups, but not for group 2 (0.39). Abutment screw failure was the chief failure mode. Strength and reliability were significantly higher for groups 1 and 3 compared to group 2.
AB - The reliability and failure modes of molar crowns supported by three different implant-supported designs were tested according to the following groups: group 1, one standard-diameter implant (3.75 mm); group 2, one narrow-diameter implant (3 mm); and group 3, two narrow-diameter implants (3 mm). Loads were applied as mouth-motion cycles using a step-stress accelerated life-testing method. β values for groups 1 and 3 (1.57 and 2.48, respectively) indicated that fatigue accelerated the failure of both groups, but not for group 2 (0.39). Abutment screw failure was the chief failure mode. Strength and reliability were significantly higher for groups 1 and 3 compared to group 2.
UR - http://www.scopus.com/inward/record.url?scp=84855532114&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84855532114&partnerID=8YFLogxK
M3 - Article
C2 - 22146255
AN - SCOPUS:84855532114
SN - 0893-2174
VL - 24
SP - 557
EP - 561
JO - International Journal of Prosthodontics
JF - International Journal of Prosthodontics
IS - 6
ER -