Effect of implant diameter on reliability and failure modes of molar crowns.

Amilcar C. Freitas-Junior, Estevam A. Bonfante, Leandro M. Martins, Nelson R F A Silva, Leonard Marotta, Paulo G. Coelho

Research output: Contribution to journalArticle

Abstract

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. ? 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.

Original languageEnglish (US)
Pages (from-to)557-561
Number of pages5
JournalInternational Journal of Prosthodontics
Volume24
Issue number6
StatePublished - Nov 2011

Fingerprint

Crowns
Psychological Stress
Fatigue
Mouth

ASJC Scopus subject areas

  • Oral Surgery

Cite this

Freitas-Junior, A. C., Bonfante, E. A., Martins, L. M., Silva, N. R. F. A., Marotta, L., & Coelho, P. G. (2011). Effect of implant diameter on reliability and failure modes of molar crowns. International Journal of Prosthodontics, 24(6), 557-561.

Effect of implant diameter on reliability and failure modes of molar crowns. / Freitas-Junior, Amilcar C.; Bonfante, Estevam A.; Martins, Leandro M.; Silva, Nelson R F A; Marotta, Leonard; Coelho, Paulo G.

In: International Journal of Prosthodontics, Vol. 24, No. 6, 11.2011, p. 557-561.

Research output: Contribution to journalArticle

Freitas-Junior, AC, Bonfante, EA, Martins, LM, Silva, NRFA, Marotta, L & Coelho, PG 2011, 'Effect of implant diameter on reliability and failure modes of molar crowns.', International Journal of Prosthodontics, vol. 24, no. 6, pp. 557-561.
Freitas-Junior AC, Bonfante EA, Martins LM, Silva NRFA, Marotta L, Coelho PG. Effect of implant diameter on reliability and failure modes of molar crowns. International Journal of Prosthodontics. 2011 Nov;24(6):557-561.
Freitas-Junior, Amilcar C. ; Bonfante, Estevam A. ; Martins, Leandro M. ; Silva, Nelson R F A ; Marotta, Leonard ; Coelho, Paulo G. / Effect of implant diameter on reliability and failure modes of molar crowns. In: International Journal of Prosthodontics. 2011 ; Vol. 24, No. 6. pp. 557-561.
@article{873d73a87f474e4aadae7e6b98da868e,
title = "Effect of implant diameter on reliability and failure modes of molar crowns.",
abstract = "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. ? 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.",
author = "Freitas-Junior, {Amilcar C.} and Bonfante, {Estevam A.} and Martins, {Leandro M.} and Silva, {Nelson R F A} and Leonard Marotta and Coelho, {Paulo G.}",
year = "2011",
month = "11",
language = "English (US)",
volume = "24",
pages = "557--561",
journal = "International Journal of Prosthodontics",
issn = "0893-2174",
publisher = "Quintessence Publishing Company",
number = "6",

}

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 - 2011/11

Y1 - 2011/11

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. ? 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. ? 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

VL - 24

SP - 557

EP - 561

JO - International Journal of Prosthodontics

JF - International Journal of Prosthodontics

SN - 0893-2174

IS - 6

ER -