Fracture strength after fatigue loading of lithium disilicate pressed zirconia crowns

So Yeun Kim; Jae Won Choi; Sung Won Ju; Jin Soo Ahn; Mi Jung Yoon; Jung Bo Huh

doi:10.11607/ijp.4602

Fracture strength after fatigue loading of lithium disilicate pressed zirconia crowns

So Yeun Kim, Jae Won Choi, Sung Won Ju, Jin Soo Ahn, Mi Jung Yoon, Jung Bo Huh

Department of Dentistry

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

Abstract

Purpose: The aim of this study was to evaluate the fracture resistance of fatigued lithium disilicate pressed zirconia crowns versus other ceramic crowns. Materials and Methods: Lithium disilicate pressed zirconia, fluorapatite pressed zirconia, monolithic lithium disilicate, and monolithic zirconia crowns were fabricated. Cyclic and static loadings were applied to the mesiobuccal cusp tip after thermocycling and fracture strengths were recorded. Results: Fatigued lithium disilicate pressed zirconia crowns were found to have a fracture resistance of 9,117.81 ± 727.04 N, compared with 9,240.61 ± 887.21 N for monolithic zirconia crowns, 3,030.18 ± 1,505.83 N for fluorapatite pressed zirconia crowns, and 4,173.94 ± 877.46 N for monolithic lithium disilicate crowns (P = .001). Conclusion: This in vitro study shows that fatigued lithium disilicate pressed zirconia and monolithic zirconia crowns have better fracture resistance than fluorapatite pressed zirconia and monolithic lithium disilicate crowns.

Original language	English
Pages (from-to)	369-371
Number of pages	3
Journal	International Journal of Prosthodontics
Volume	29
Issue number	4
DOIs	https://doi.org/10.11607/ijp.4602
State	Published - 2016

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title = "Fracture strength after fatigue loading of lithium disilicate pressed zirconia crowns",

abstract = "Purpose: The aim of this study was to evaluate the fracture resistance of fatigued lithium disilicate pressed zirconia crowns versus other ceramic crowns. Materials and Methods: Lithium disilicate pressed zirconia, fluorapatite pressed zirconia, monolithic lithium disilicate, and monolithic zirconia crowns were fabricated. Cyclic and static loadings were applied to the mesiobuccal cusp tip after thermocycling and fracture strengths were recorded. Results: Fatigued lithium disilicate pressed zirconia crowns were found to have a fracture resistance of 9,117.81 ± 727.04 N, compared with 9,240.61 ± 887.21 N for monolithic zirconia crowns, 3,030.18 ± 1,505.83 N for fluorapatite pressed zirconia crowns, and 4,173.94 ± 877.46 N for monolithic lithium disilicate crowns (P = .001). Conclusion: This in vitro study shows that fatigued lithium disilicate pressed zirconia and monolithic zirconia crowns have better fracture resistance than fluorapatite pressed zirconia and monolithic lithium disilicate crowns.",

author = "Kim, {So Yeun} and Choi, {Jae Won} and Ju, {Sung Won} and Ahn, {Jin Soo} and Yoon, {Mi Jung} and Huh, {Jung Bo}",

note = "Publisher Copyright: {\textcopyright} 2016 by Quintessence Publishing Co Inc.",

year = "2016",

doi = "10.11607/ijp.4602",

language = "English",

volume = "29",

pages = "369--371",

journal = "International Journal of Prosthodontics",

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TY - JOUR

T1 - Fracture strength after fatigue loading of lithium disilicate pressed zirconia crowns

AU - Kim, So Yeun

AU - Choi, Jae Won

AU - Ju, Sung Won

AU - Ahn, Jin Soo

AU - Yoon, Mi Jung

AU - Huh, Jung Bo

PY - 2016

Y1 - 2016

N2 - Purpose: The aim of this study was to evaluate the fracture resistance of fatigued lithium disilicate pressed zirconia crowns versus other ceramic crowns. Materials and Methods: Lithium disilicate pressed zirconia, fluorapatite pressed zirconia, monolithic lithium disilicate, and monolithic zirconia crowns were fabricated. Cyclic and static loadings were applied to the mesiobuccal cusp tip after thermocycling and fracture strengths were recorded. Results: Fatigued lithium disilicate pressed zirconia crowns were found to have a fracture resistance of 9,117.81 ± 727.04 N, compared with 9,240.61 ± 887.21 N for monolithic zirconia crowns, 3,030.18 ± 1,505.83 N for fluorapatite pressed zirconia crowns, and 4,173.94 ± 877.46 N for monolithic lithium disilicate crowns (P = .001). Conclusion: This in vitro study shows that fatigued lithium disilicate pressed zirconia and monolithic zirconia crowns have better fracture resistance than fluorapatite pressed zirconia and monolithic lithium disilicate crowns.

AB - Purpose: The aim of this study was to evaluate the fracture resistance of fatigued lithium disilicate pressed zirconia crowns versus other ceramic crowns. Materials and Methods: Lithium disilicate pressed zirconia, fluorapatite pressed zirconia, monolithic lithium disilicate, and monolithic zirconia crowns were fabricated. Cyclic and static loadings were applied to the mesiobuccal cusp tip after thermocycling and fracture strengths were recorded. Results: Fatigued lithium disilicate pressed zirconia crowns were found to have a fracture resistance of 9,117.81 ± 727.04 N, compared with 9,240.61 ± 887.21 N for monolithic zirconia crowns, 3,030.18 ± 1,505.83 N for fluorapatite pressed zirconia crowns, and 4,173.94 ± 877.46 N for monolithic lithium disilicate crowns (P = .001). Conclusion: This in vitro study shows that fatigued lithium disilicate pressed zirconia and monolithic zirconia crowns have better fracture resistance than fluorapatite pressed zirconia and monolithic lithium disilicate crowns.

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DO - 10.11607/ijp.4602

M3 - Article

C2 - 27479345

AN - SCOPUS:84984870778

SN - 0893-2174

VL - 29

SP - 369

EP - 371

JO - International Journal of Prosthodontics

JF - International Journal of Prosthodontics

IS - 4

ER -

Fracture strength after fatigue loading of lithium disilicate pressed zirconia crowns

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