Adverse surface interactions between one-bottle light-cured adhesives and chemical-cured composites

Anna Marie E. Sanares; Anut Itthagarun; Nigel M. King; Franklin R. Tay; David H. Pashley

doi:10.1016/S0109-5641(01)00016-1

Adverse surface interactions between one-bottle light-cured adhesives and chemical-cured composites

Anna Marie E. Sanares, Anut Itthagarun, Nigel M. King, Franklin R. Tay, David H. Pashley

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

238 Scopus citations

Abstract

Objectives: This study examined the effect of one-bottle adhesives with different acidities on bonding to chemical-cured and light-cured resin composites. Methods: Twenty-four non-carious human third molars were divided into eight groups. A flat dentin surface was created for each tooth. Acid-conditioned dentin surfaces were bonded with Prime&Bond NT (Dentsply), OptiBond SOLO (Kerr), Single Bond (3M) or One-Step (Bisco). Each adhesive group was covered with composite buildups, using either a light-cured (Z100, 3M) or a chemical-cured composite (BisFil 2, Bisco). Specimens were vertically sectioned into 0.9 × 0.9 mm beams. Microtensile bond strengths were recorded and failure modes were classified using a stereoscopical microscope. Four representative beams from each group were further prepared for SEM examination. Results: Two-way ANOVA showed that the effect of adhesive types, composite curing modes and their interaction were statistically significant (P < 0.001). Multiple comparison tests revealed no statistically significant difference in the bond strength of the four adhesives with the light-cured composite (P > 0.05). However, they were significantly lower when used with the chemical-cured composite (P < 0.01). A positive correlation was observed between the acidity of adhesives and the bond strengths of the chemical-cured composite. Failure occurred predominantly along the composite-adhesive interface, with microporosities on the adhesive surface and voids within the chemical-cured composite. Significance: Air incorporated during mixing of chemical-cured composites only contributed partially to the decreased bond strength observed in simplified-step adhesives. Ultrastructural observations suggested the presence of a surface interaction between the uncured, acidic resin monomers from the oxygen inhibition layer of the adhesive and the initiator components in the chemical-cured composite.

Original language	English (US)
Pages (from-to)	542-556
Number of pages	15
Journal	Dental Materials
Volume	17
Issue number	6
DOIs	https://doi.org/10.1016/S0109-5641(01)00016-1
State	Published - Nov 2001
Externally published	Yes

Keywords

Acidity
Chemical-cured composites
Light-cured composites
Microtensile bond strength
One-bottle adhesives
SEM

ASJC Scopus subject areas

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

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@article{75748a1f2c184114a7835cf0fa8c0993,

title = "Adverse surface interactions between one-bottle light-cured adhesives and chemical-cured composites",

abstract = "Objectives: This study examined the effect of one-bottle adhesives with different acidities on bonding to chemical-cured and light-cured resin composites. Methods: Twenty-four non-carious human third molars were divided into eight groups. A flat dentin surface was created for each tooth. Acid-conditioned dentin surfaces were bonded with Prime&Bond NT (Dentsply), OptiBond SOLO (Kerr), Single Bond (3M) or One-Step (Bisco). Each adhesive group was covered with composite buildups, using either a light-cured (Z100, 3M) or a chemical-cured composite (BisFil 2, Bisco). Specimens were vertically sectioned into 0.9 × 0.9 mm beams. Microtensile bond strengths were recorded and failure modes were classified using a stereoscopical microscope. Four representative beams from each group were further prepared for SEM examination. Results: Two-way ANOVA showed that the effect of adhesive types, composite curing modes and their interaction were statistically significant (P < 0.001). Multiple comparison tests revealed no statistically significant difference in the bond strength of the four adhesives with the light-cured composite (P > 0.05). However, they were significantly lower when used with the chemical-cured composite (P < 0.01). A positive correlation was observed between the acidity of adhesives and the bond strengths of the chemical-cured composite. Failure occurred predominantly along the composite-adhesive interface, with microporosities on the adhesive surface and voids within the chemical-cured composite. Significance: Air incorporated during mixing of chemical-cured composites only contributed partially to the decreased bond strength observed in simplified-step adhesives. Ultrastructural observations suggested the presence of a surface interaction between the uncured, acidic resin monomers from the oxygen inhibition layer of the adhesive and the initiator components in the chemical-cured composite.",

keywords = "Acidity, Chemical-cured composites, Light-cured composites, Microtensile bond strength, One-bottle adhesives, SEM",

author = "Sanares, {Anna Marie E.} and Anut Itthagarun and King, {Nigel M.} and Tay, {Franklin R.} and Pashley, {David H.}",

note = "Funding Information: This study is based on the dissertation submitted by Anna M. E. Sanares to the University of Hong Kong for partial fulfillment of the degree of Master of Dental Surgery. We thank Dr Joseph Antonucci, Mr Byoung Suh and Dr Junichi Yamauchi for their expert advice. We also express our gratitude to Joyce Yau of Oral-Biosciences, Prince Philip Dental Hospital, and W. S. Lee of the Electron Microscopy Unit, the University of Hong Kong for their technical assistance. This study was supported, in part, by CRC grant 10202534 from the University of Hong Kong and by grant DE 06427 from the NIDCR, USA. The authors are grateful to Michelle Burnside for secretarial support. ",

year = "2001",

month = nov,

doi = "10.1016/S0109-5641(01)00016-1",

language = "English (US)",

volume = "17",

pages = "542--556",

journal = "Dental Materials",

issn = "0109-5641",

publisher = "Elsevier Science",

number = "6",

}

TY - JOUR

T1 - Adverse surface interactions between one-bottle light-cured adhesives and chemical-cured composites

AU - Sanares, Anna Marie E.

AU - Itthagarun, Anut

AU - King, Nigel M.

AU - Tay, Franklin R.

AU - Pashley, David H.

N1 - Funding Information: This study is based on the dissertation submitted by Anna M. E. Sanares to the University of Hong Kong for partial fulfillment of the degree of Master of Dental Surgery. We thank Dr Joseph Antonucci, Mr Byoung Suh and Dr Junichi Yamauchi for their expert advice. We also express our gratitude to Joyce Yau of Oral-Biosciences, Prince Philip Dental Hospital, and W. S. Lee of the Electron Microscopy Unit, the University of Hong Kong for their technical assistance. This study was supported, in part, by CRC grant 10202534 from the University of Hong Kong and by grant DE 06427 from the NIDCR, USA. The authors are grateful to Michelle Burnside for secretarial support.

PY - 2001/11

Y1 - 2001/11

N2 - Objectives: This study examined the effect of one-bottle adhesives with different acidities on bonding to chemical-cured and light-cured resin composites. Methods: Twenty-four non-carious human third molars were divided into eight groups. A flat dentin surface was created for each tooth. Acid-conditioned dentin surfaces were bonded with Prime&Bond NT (Dentsply), OptiBond SOLO (Kerr), Single Bond (3M) or One-Step (Bisco). Each adhesive group was covered with composite buildups, using either a light-cured (Z100, 3M) or a chemical-cured composite (BisFil 2, Bisco). Specimens were vertically sectioned into 0.9 × 0.9 mm beams. Microtensile bond strengths were recorded and failure modes were classified using a stereoscopical microscope. Four representative beams from each group were further prepared for SEM examination. Results: Two-way ANOVA showed that the effect of adhesive types, composite curing modes and their interaction were statistically significant (P < 0.001). Multiple comparison tests revealed no statistically significant difference in the bond strength of the four adhesives with the light-cured composite (P > 0.05). However, they were significantly lower when used with the chemical-cured composite (P < 0.01). A positive correlation was observed between the acidity of adhesives and the bond strengths of the chemical-cured composite. Failure occurred predominantly along the composite-adhesive interface, with microporosities on the adhesive surface and voids within the chemical-cured composite. Significance: Air incorporated during mixing of chemical-cured composites only contributed partially to the decreased bond strength observed in simplified-step adhesives. Ultrastructural observations suggested the presence of a surface interaction between the uncured, acidic resin monomers from the oxygen inhibition layer of the adhesive and the initiator components in the chemical-cured composite.

AB - Objectives: This study examined the effect of one-bottle adhesives with different acidities on bonding to chemical-cured and light-cured resin composites. Methods: Twenty-four non-carious human third molars were divided into eight groups. A flat dentin surface was created for each tooth. Acid-conditioned dentin surfaces were bonded with Prime&Bond NT (Dentsply), OptiBond SOLO (Kerr), Single Bond (3M) or One-Step (Bisco). Each adhesive group was covered with composite buildups, using either a light-cured (Z100, 3M) or a chemical-cured composite (BisFil 2, Bisco). Specimens were vertically sectioned into 0.9 × 0.9 mm beams. Microtensile bond strengths were recorded and failure modes were classified using a stereoscopical microscope. Four representative beams from each group were further prepared for SEM examination. Results: Two-way ANOVA showed that the effect of adhesive types, composite curing modes and their interaction were statistically significant (P < 0.001). Multiple comparison tests revealed no statistically significant difference in the bond strength of the four adhesives with the light-cured composite (P > 0.05). However, they were significantly lower when used with the chemical-cured composite (P < 0.01). A positive correlation was observed between the acidity of adhesives and the bond strengths of the chemical-cured composite. Failure occurred predominantly along the composite-adhesive interface, with microporosities on the adhesive surface and voids within the chemical-cured composite. Significance: Air incorporated during mixing of chemical-cured composites only contributed partially to the decreased bond strength observed in simplified-step adhesives. Ultrastructural observations suggested the presence of a surface interaction between the uncured, acidic resin monomers from the oxygen inhibition layer of the adhesive and the initiator components in the chemical-cured composite.

KW - Acidity

KW - Chemical-cured composites

KW - Light-cured composites

KW - Microtensile bond strength

KW - One-bottle adhesives

KW - SEM

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U2 - 10.1016/S0109-5641(01)00016-1

DO - 10.1016/S0109-5641(01)00016-1

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C2 - 11567693

AN - SCOPUS:0035514423

VL - 17

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EP - 556

JO - Dental Materials

JF - Dental Materials

SN - 0109-5641

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ER -

Adverse surface interactions between one-bottle light-cured adhesives and chemical-cured composites

Abstract

Keywords

ASJC Scopus subject areas

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