Effect of c-Factor on microtensile bond strengths of low-shrinkage composites

N. A. El-Sahn, D. W. El-Kassas, H. M. El-Damanhoury, O. M. Fahmy, H. Gomaa, Jeffrey Platt

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

This study evaluated the microtensile bond strength (μ-TBS) of low-shrinkage composites with their corresponding adhesive systems, Filtek Silorane/Silorane adhesive (SIL, 3M ESPE AG, Seefeld, Germany) and Aelite LS/ One-Step Plus (AL, BISCO Inc, Schaumburg, IL, USA) in cavities with different C-factors. Filtek Z250/Adper Single Bond Plus (Z, 3M ESPE, St Paul, MN, USA) was used as a control. Method: Standardized Class I cavities were prepared in extracted human molars after removing occlusal enamel. Cavities were assigned into six different C-factors by applying nail polish to four walls, three walls, two walls adjacent to each other, two walls opposite to each other, one wall, or no walls. Resin composites with their corresponding adhesive systems were applied according to manufacturer instructions. Specimens were sectioned to obtain four rectangular beams from the center of the restorations and μ-TBS was measured. Data were analyzed by Weibull survival analysis. Shrinkage stresses of the resin composites were determined after 30 minutes from the start of light-curing using a tensometer testing machine. Flexure elastic modulus was determined using standard procedures, in accordance with ISO 4049. Data for shrinkage stress and elastic modulus were analyzed by one-way analysis of variance followed by a Tukey multiple-comparisons test (p

Original languageEnglish (US)
Pages (from-to)281-292
Number of pages12
JournalOperative Dentistry
Volume36
Issue number3
DOIs
StatePublished - May 2011

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Adhesives
Composite Resins
Elastic Modulus
Silorane Resins
Industrial Oils
Dental Enamel
Survival Analysis
Nails
Germany
Analysis of Variance
Light
Aelite LS
silorane composite resin
Single Bond Plus
Filtek Z250

ASJC Scopus subject areas

  • Dentistry(all)

Cite this

El-Sahn, N. A., El-Kassas, D. W., El-Damanhoury, H. M., Fahmy, O. M., Gomaa, H., & Platt, J. (2011). Effect of c-Factor on microtensile bond strengths of low-shrinkage composites. Operative Dentistry, 36(3), 281-292. https://doi.org/10.2341/10-105-L

Effect of c-Factor on microtensile bond strengths of low-shrinkage composites. / El-Sahn, N. A.; El-Kassas, D. W.; El-Damanhoury, H. M.; Fahmy, O. M.; Gomaa, H.; Platt, Jeffrey.

In: Operative Dentistry, Vol. 36, No. 3, 05.2011, p. 281-292.

Research output: Contribution to journalArticle

El-Sahn, NA, El-Kassas, DW, El-Damanhoury, HM, Fahmy, OM, Gomaa, H & Platt, J 2011, 'Effect of c-Factor on microtensile bond strengths of low-shrinkage composites', Operative Dentistry, vol. 36, no. 3, pp. 281-292. https://doi.org/10.2341/10-105-L
El-Sahn, N. A. ; El-Kassas, D. W. ; El-Damanhoury, H. M. ; Fahmy, O. M. ; Gomaa, H. ; Platt, Jeffrey. / Effect of c-Factor on microtensile bond strengths of low-shrinkage composites. In: Operative Dentistry. 2011 ; Vol. 36, No. 3. pp. 281-292.
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