Polymer infiltrated ceramic network structures for resistance to fatigue fracture and wear

Haifa El Zhawi; Marina R. Kaizer; Asima Chughtai; Rafael R. Moraes; Yu Zhang

doi:10.1016/j.dental.2016.08.216

Polymer infiltrated ceramic network structures for resistance to fatigue fracture and wear

Haifa El Zhawi, Marina R. Kaizer, Asima Chughtai, Rafael R. Moraes, Yu Zhang

Dentistry and Medical Sciences

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

78 Citations (Scopus)

Abstract

Objective To investigate fatigue fracture resistance and wear behavior of a polymer infiltrated ceramic network (PICN) material (ENAMIC, Vita Zahnfabrik). Methods Anatomically shaped ENAMIC monolithic crowns were milled using a CAD/CAM system. The crowns were cemented on aged dentin-like composite abutments (Z100, 3M ESPE) with resin-based cement (Vita DUO Cement, Vita). The specimens were subjected to 2 types of fatigue and wear tests: (1) accelerated sliding-contact mouth-motion step-stress fatigue test (n = 24) in water; and (2) long-term sliding-contact mouth-motion fatigue/wear test using a clinically relevant load (P = 200 N, n = 8) in water. Failure was designated as chip-off or bulk fracture. Optical and scanning electron microscopes were used to examine the occlusal surface and subsurface damage, as well as to reveal the material's microstructure. In addition, wear volume and depth were measured by X-ray micro-computed tomography. Results For accelerated mouth-motion step-stress fatigue testing, 3 out of the 24 ENAMIC crowns fractured following cyclic loading up to 1700 N. Minor occlusal damage and contact-induced cone cracks were observed in all surviving specimens, but no flexural radial cracks were seen. For long-term mouth-motion fatigue/wear testing under a 200 N load in water, a small wear scar without significant cracks was observed in all 8 tested ENAMIC crowns. Significance Monolithic CAD/CAM ENAMIC crowns showed superior resistance to sliding-contact fatigue fracture and wear.

Original language	English
Pages (from-to)	1352-1361
Number of pages	10
Journal	Dental Materials
Volume	32
Issue number	11
DOIs	https://doi.org/10.1016/j.dental.2016.08.216
Publication status	Published - 01 Nov 2016

Access to Document

10.1016/j.dental.2016.08.216

Cite this

@article{70742ac0d7f1462685586485002af437,

title = "Polymer infiltrated ceramic network structures for resistance to fatigue fracture and wear",

abstract = "Objective To investigate fatigue fracture resistance and wear behavior of a polymer infiltrated ceramic network (PICN) material (ENAMIC, Vita Zahnfabrik). Methods Anatomically shaped ENAMIC monolithic crowns were milled using a CAD/CAM system. The crowns were cemented on aged dentin-like composite abutments (Z100, 3M ESPE) with resin-based cement (Vita DUO Cement, Vita). The specimens were subjected to 2 types of fatigue and wear tests: (1) accelerated sliding-contact mouth-motion step-stress fatigue test (n = 24) in water; and (2) long-term sliding-contact mouth-motion fatigue/wear test using a clinically relevant load (P = 200 N, n = 8) in water. Failure was designated as chip-off or bulk fracture. Optical and scanning electron microscopes were used to examine the occlusal surface and subsurface damage, as well as to reveal the material's microstructure. In addition, wear volume and depth were measured by X-ray micro-computed tomography. Results For accelerated mouth-motion step-stress fatigue testing, 3 out of the 24 ENAMIC crowns fractured following cyclic loading up to 1700 N. Minor occlusal damage and contact-induced cone cracks were observed in all surviving specimens, but no flexural radial cracks were seen. For long-term mouth-motion fatigue/wear testing under a 200 N load in water, a small wear scar without significant cracks was observed in all 8 tested ENAMIC crowns. Significance Monolithic CAD/CAM ENAMIC crowns showed superior resistance to sliding-contact fatigue fracture and wear.",

keywords = "CAD/CAM crowns, Damage modes, Fatigue fracture, Polymer infiltrated ceramic network, Wear",

author = "{El Zhawi}, Haifa and Kaizer, {Marina R.} and Asima Chughtai and Moraes, {Rafael R.} and Yu Zhang",

note = "Funding Information: Most of the results of this study were submitted as a Master{\textquoteright}s thesis by H. El Zhawi in partial fulfillment of the requirements for a Master of Science degree. This work was sponsored by funding from the United States National Institute of Dental & Craniofacial Research, National Institutes of Health (Grant 2R01 DE017925). Publisher Copyright: {\textcopyright} 2016 The Academy of Dental Materials",

year = "2016",

month = nov,

day = "1",

doi = "10.1016/j.dental.2016.08.216",

language = "English",

volume = "32",

pages = "1352--1361",

journal = "Dental Materials",

issn = "0109-5641",

publisher = "Elsevier",

number = "11",

}

TY - JOUR

T1 - Polymer infiltrated ceramic network structures for resistance to fatigue fracture and wear

AU - El Zhawi, Haifa

AU - Kaizer, Marina R.

AU - Chughtai, Asima

AU - Moraes, Rafael R.

AU - Zhang, Yu

N1 - Funding Information: Most of the results of this study were submitted as a Master’s thesis by H. El Zhawi in partial fulfillment of the requirements for a Master of Science degree. This work was sponsored by funding from the United States National Institute of Dental & Craniofacial Research, National Institutes of Health (Grant 2R01 DE017925). Publisher Copyright: © 2016 The Academy of Dental Materials

PY - 2016/11/1

Y1 - 2016/11/1

N2 - Objective To investigate fatigue fracture resistance and wear behavior of a polymer infiltrated ceramic network (PICN) material (ENAMIC, Vita Zahnfabrik). Methods Anatomically shaped ENAMIC monolithic crowns were milled using a CAD/CAM system. The crowns were cemented on aged dentin-like composite abutments (Z100, 3M ESPE) with resin-based cement (Vita DUO Cement, Vita). The specimens were subjected to 2 types of fatigue and wear tests: (1) accelerated sliding-contact mouth-motion step-stress fatigue test (n = 24) in water; and (2) long-term sliding-contact mouth-motion fatigue/wear test using a clinically relevant load (P = 200 N, n = 8) in water. Failure was designated as chip-off or bulk fracture. Optical and scanning electron microscopes were used to examine the occlusal surface and subsurface damage, as well as to reveal the material's microstructure. In addition, wear volume and depth were measured by X-ray micro-computed tomography. Results For accelerated mouth-motion step-stress fatigue testing, 3 out of the 24 ENAMIC crowns fractured following cyclic loading up to 1700 N. Minor occlusal damage and contact-induced cone cracks were observed in all surviving specimens, but no flexural radial cracks were seen. For long-term mouth-motion fatigue/wear testing under a 200 N load in water, a small wear scar without significant cracks was observed in all 8 tested ENAMIC crowns. Significance Monolithic CAD/CAM ENAMIC crowns showed superior resistance to sliding-contact fatigue fracture and wear.

AB - Objective To investigate fatigue fracture resistance and wear behavior of a polymer infiltrated ceramic network (PICN) material (ENAMIC, Vita Zahnfabrik). Methods Anatomically shaped ENAMIC monolithic crowns were milled using a CAD/CAM system. The crowns were cemented on aged dentin-like composite abutments (Z100, 3M ESPE) with resin-based cement (Vita DUO Cement, Vita). The specimens were subjected to 2 types of fatigue and wear tests: (1) accelerated sliding-contact mouth-motion step-stress fatigue test (n = 24) in water; and (2) long-term sliding-contact mouth-motion fatigue/wear test using a clinically relevant load (P = 200 N, n = 8) in water. Failure was designated as chip-off or bulk fracture. Optical and scanning electron microscopes were used to examine the occlusal surface and subsurface damage, as well as to reveal the material's microstructure. In addition, wear volume and depth were measured by X-ray micro-computed tomography. Results For accelerated mouth-motion step-stress fatigue testing, 3 out of the 24 ENAMIC crowns fractured following cyclic loading up to 1700 N. Minor occlusal damage and contact-induced cone cracks were observed in all surviving specimens, but no flexural radial cracks were seen. For long-term mouth-motion fatigue/wear testing under a 200 N load in water, a small wear scar without significant cracks was observed in all 8 tested ENAMIC crowns. Significance Monolithic CAD/CAM ENAMIC crowns showed superior resistance to sliding-contact fatigue fracture and wear.

KW - CAD/CAM crowns

KW - Damage modes

KW - Fatigue fracture

KW - Polymer infiltrated ceramic network

KW - Wear

UR - http://www.scopus.com/inward/record.url?scp=84994496265&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84994496265&partnerID=8YFLogxK

U2 - 10.1016/j.dental.2016.08.216

DO - 10.1016/j.dental.2016.08.216

M3 - Article

C2 - 27585486

AN - SCOPUS:84994496265

SN - 0109-5641

VL - 32

SP - 1352

EP - 1361

JO - Dental Materials

JF - Dental Materials

IS - 11

ER -

Polymer infiltrated ceramic network structures for resistance to fatigue fracture and wear

Abstract

Access to Document

Other files and links

Fingerprint

Cite this