On the durability of resin-dentin bonds: Identifying the weakest links

Zihou Zhang; Dylan Beitzel; Mustafa Mutluay; Franklin R. Tay; David H. Pashley; Dwayne Arola

doi:10.1016/j.dental.2015.06.011

On the durability of resin-dentin bonds: Identifying the weakest links

Zihou Zhang, Dylan Beitzel, Mustafa Mutluay, Franklin R. Tay, David H. Pashley, Dwayne Arola

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

29 Scopus citations

Abstract

Abstract Fatigue of resin-dentin adhesive bonds is critical to the longevity of resin composite restorations. Objectives The objectives were to characterize the fatigue and fatigue crack growth resistance of resin-dentin bonds achieved using two different commercial adhesives and to identify apparent "weak-links". Methods Bonded interface specimens were prepared using Adper Single Bond Plus (SB) or Adper Scotchbond Multi-Purpose (SBMP) adhesives and 3M Z100 resin composite according to the manufacturers' instructions. The stress-life fatigue behavior was evaluated using the twin bonded interface approach and the fatigue crack growth resistance was examined using bonded interface Compact Tension (CT) specimens. Fatigue properties of the interfaces were compared to those of the resin-adhesive, resin composite and coronal dentin. Results The fatigue strength of the SBMP interface was significantly greater than that achieved by SB (p ≤ 0.01). Both bonded interfaces exhibited significantly lower fatigue strength than that of the Z100 and dentin. Regarding the fatigue crack growth resistance, the stress intensity threshold (ΔK_th) of the SB interface was significantly greater (p ≤ 0.01) than that of the SBMP, whereas the ΔK_th of the interfaces was more than twice that of the parent adhesives. Significance Collagen fibril reinforcement of the resin adhesive is essential to the fatigue crack growth resistance of resin-dentin bonds. Resin tags that are not well hybridized into the surrounding intertubular dentin and/or poor collagen integrity are detrimental to the bonded interface durability.

Original language	English (US)
Article number	2582
Pages (from-to)	1109-1118
Number of pages	10
Journal	Dental Materials
Volume	31
Issue number	9
DOIs	https://doi.org/10.1016/j.dental.2015.06.011
State	Published - Sep 1 2015

Keywords

Crack
Dentin bonding
Durability
Fatigue
Fracture

ASJC Scopus subject areas

Materials Science(all)
Dentistry(all)
Mechanics of Materials

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10.1016/j.dental.2015.06.011

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@article{cc2b5499c4654cfd8e6e9ac76626ac69,

title = "On the durability of resin-dentin bonds: Identifying the weakest links",

abstract = "Abstract Fatigue of resin-dentin adhesive bonds is critical to the longevity of resin composite restorations. Objectives The objectives were to characterize the fatigue and fatigue crack growth resistance of resin-dentin bonds achieved using two different commercial adhesives and to identify apparent {"}weak-links{"}. Methods Bonded interface specimens were prepared using Adper Single Bond Plus (SB) or Adper Scotchbond Multi-Purpose (SBMP) adhesives and 3M Z100 resin composite according to the manufacturers' instructions. The stress-life fatigue behavior was evaluated using the twin bonded interface approach and the fatigue crack growth resistance was examined using bonded interface Compact Tension (CT) specimens. Fatigue properties of the interfaces were compared to those of the resin-adhesive, resin composite and coronal dentin. Results The fatigue strength of the SBMP interface was significantly greater than that achieved by SB (p ≤ 0.01). Both bonded interfaces exhibited significantly lower fatigue strength than that of the Z100 and dentin. Regarding the fatigue crack growth resistance, the stress intensity threshold (ΔKth) of the SB interface was significantly greater (p ≤ 0.01) than that of the SBMP, whereas the ΔKth of the interfaces was more than twice that of the parent adhesives. Significance Collagen fibril reinforcement of the resin adhesive is essential to the fatigue crack growth resistance of resin-dentin bonds. Resin tags that are not well hybridized into the surrounding intertubular dentin and/or poor collagen integrity are detrimental to the bonded interface durability.",

keywords = "Crack, Dentin bonding, Durability, Fatigue, Fracture",

author = "Zihou Zhang and Dylan Beitzel and Mustafa Mutluay and Tay, {Franklin R.} and Pashley, {David H.} and Dwayne Arola",

note = "Funding Information: The authors acknowledge support from the National Institutes of Health (NIDCR R01 DE015306-06, Pashley) and the National Science Foundation (NSF DMR 1337727, Takacs). The authors also gratefully acknowledge 3M ESPE for their generous donation of bonding supplies and resin composite. Publisher Copyright: {\textcopyright} 2015 Academy of Dental Materials.",

year = "2015",

month = sep,

day = "1",

doi = "10.1016/j.dental.2015.06.011",

language = "English (US)",

volume = "31",

pages = "1109--1118",

journal = "Dental Materials",

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T1 - On the durability of resin-dentin bonds

T2 - Identifying the weakest links

AU - Zhang, Zihou

AU - Beitzel, Dylan

AU - Mutluay, Mustafa

AU - Tay, Franklin R.

AU - Pashley, David H.

AU - Arola, Dwayne

N1 - Funding Information: The authors acknowledge support from the National Institutes of Health (NIDCR R01 DE015306-06, Pashley) and the National Science Foundation (NSF DMR 1337727, Takacs). The authors also gratefully acknowledge 3M ESPE for their generous donation of bonding supplies and resin composite. Publisher Copyright: © 2015 Academy of Dental Materials.

PY - 2015/9/1

Y1 - 2015/9/1

N2 - Abstract Fatigue of resin-dentin adhesive bonds is critical to the longevity of resin composite restorations. Objectives The objectives were to characterize the fatigue and fatigue crack growth resistance of resin-dentin bonds achieved using two different commercial adhesives and to identify apparent "weak-links". Methods Bonded interface specimens were prepared using Adper Single Bond Plus (SB) or Adper Scotchbond Multi-Purpose (SBMP) adhesives and 3M Z100 resin composite according to the manufacturers' instructions. The stress-life fatigue behavior was evaluated using the twin bonded interface approach and the fatigue crack growth resistance was examined using bonded interface Compact Tension (CT) specimens. Fatigue properties of the interfaces were compared to those of the resin-adhesive, resin composite and coronal dentin. Results The fatigue strength of the SBMP interface was significantly greater than that achieved by SB (p ≤ 0.01). Both bonded interfaces exhibited significantly lower fatigue strength than that of the Z100 and dentin. Regarding the fatigue crack growth resistance, the stress intensity threshold (ΔKth) of the SB interface was significantly greater (p ≤ 0.01) than that of the SBMP, whereas the ΔKth of the interfaces was more than twice that of the parent adhesives. Significance Collagen fibril reinforcement of the resin adhesive is essential to the fatigue crack growth resistance of resin-dentin bonds. Resin tags that are not well hybridized into the surrounding intertubular dentin and/or poor collagen integrity are detrimental to the bonded interface durability.

AB - Abstract Fatigue of resin-dentin adhesive bonds is critical to the longevity of resin composite restorations. Objectives The objectives were to characterize the fatigue and fatigue crack growth resistance of resin-dentin bonds achieved using two different commercial adhesives and to identify apparent "weak-links". Methods Bonded interface specimens were prepared using Adper Single Bond Plus (SB) or Adper Scotchbond Multi-Purpose (SBMP) adhesives and 3M Z100 resin composite according to the manufacturers' instructions. The stress-life fatigue behavior was evaluated using the twin bonded interface approach and the fatigue crack growth resistance was examined using bonded interface Compact Tension (CT) specimens. Fatigue properties of the interfaces were compared to those of the resin-adhesive, resin composite and coronal dentin. Results The fatigue strength of the SBMP interface was significantly greater than that achieved by SB (p ≤ 0.01). Both bonded interfaces exhibited significantly lower fatigue strength than that of the Z100 and dentin. Regarding the fatigue crack growth resistance, the stress intensity threshold (ΔKth) of the SB interface was significantly greater (p ≤ 0.01) than that of the SBMP, whereas the ΔKth of the interfaces was more than twice that of the parent adhesives. Significance Collagen fibril reinforcement of the resin adhesive is essential to the fatigue crack growth resistance of resin-dentin bonds. Resin tags that are not well hybridized into the surrounding intertubular dentin and/or poor collagen integrity are detrimental to the bonded interface durability.

KW - Crack

KW - Dentin bonding

KW - Durability

KW - Fatigue

KW - Fracture

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ER -

On the durability of resin-dentin bonds: Identifying the weakest links

Abstract

Keywords

ASJC Scopus subject areas

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