An investigation of the interfacial strengths of methacrylate resin-based glass fiber post-core buildups

Marco Ferrari, Cecilia Goracci, Fernanda T. Sadek, Francesca Monticelli, Franklin R. Tay

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

Purpose: To assess the microtensile bond strengths of a core composite with two different viscosities, MultiCore Flow (F) and Heavy Body (HB) (Ivoclar-Vivadent), on dentin and glass-fiber posts with methacrylate resin matrices, in combination with three dentin adhesives: Syntac Classic (S), Excite DSC (E), and AdheSE (A) (Ivoclar-Vivadent). The omission of an intermediate adhesive coating on silanized posts was also examined to see if this resulted in post-core bond strength reduction. Materials and Methods: Six experimental dentin and 6 experimental post groups were formed with different core material viscosity/adhesive combinations. In two control post groups, no adhesive was applied on the silanized posts. The core material was stratified on deep dentin or on the posts. From the built-up teeth and the post-core units, microtensile sticks were obtained. Results: The bond strengths measured on dentin were (MPa): S-F 12.7 ± 6.4; S-HB 18.3 ± 7.6; E-F 33.1 ± 13.7; E-HB 34.1 ± 10.2; A-F 33.5 ± 14.8; A-HB 35.5 ± 14.4. The post-core strengths were: S-F 9.4 ± 2.5; S-HB 7.1 ± 3.8; E-F 8.6 ± 3.8; E-HB 8.1 ± 4.4; A-F 8.1 ± 2.7; A-HB 8.3 ± 2.4; no adhesive-F 10.4 ± 3.6; no adhesive-HB 6.3 ± 2.7. Significantly higher interfacial strengths were achieved on dentin than on posts (p < 0.05). Adhesive type significantly affected core-dentin adhesion, with Excite DSC and AdheSE outperforming Syntac Classic (p < 0.05). Neither core material viscosity nor adhesive type significantly influenced post-core adhesion (p > 0.05). Omission of an intermediate adhesive layer had no effect on post-core adhesion (p > 0.05). Conclusions: Even after post surface silanization, the bond established by the composite core material with the post remains weaker than that created with coronal dentin.

Original languageEnglish (US)
Pages (from-to)239-245
Number of pages7
JournalJournal of Adhesive Dentistry
Volume8
Issue number4
StatePublished - Sep 4 2006

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Methacrylates
Dentin
Adhesives
Viscosity
fiberglass
Tooth
Control Groups

Keywords

  • Bond strength
  • Composite resin
  • Core
  • Dentin
  • Fiber post

ASJC Scopus subject areas

  • Orthodontics
  • Oral Surgery
  • Periodontics

Cite this

An investigation of the interfacial strengths of methacrylate resin-based glass fiber post-core buildups. / Ferrari, Marco; Goracci, Cecilia; Sadek, Fernanda T.; Monticelli, Francesca; Tay, Franklin R.

In: Journal of Adhesive Dentistry, Vol. 8, No. 4, 04.09.2006, p. 239-245.

Research output: Contribution to journalArticle

Ferrari, Marco ; Goracci, Cecilia ; Sadek, Fernanda T. ; Monticelli, Francesca ; Tay, Franklin R. / An investigation of the interfacial strengths of methacrylate resin-based glass fiber post-core buildups. In: Journal of Adhesive Dentistry. 2006 ; Vol. 8, No. 4. pp. 239-245.
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abstract = "Purpose: To assess the microtensile bond strengths of a core composite with two different viscosities, MultiCore Flow (F) and Heavy Body (HB) (Ivoclar-Vivadent), on dentin and glass-fiber posts with methacrylate resin matrices, in combination with three dentin adhesives: Syntac Classic (S), Excite DSC (E), and AdheSE (A) (Ivoclar-Vivadent). The omission of an intermediate adhesive coating on silanized posts was also examined to see if this resulted in post-core bond strength reduction. Materials and Methods: Six experimental dentin and 6 experimental post groups were formed with different core material viscosity/adhesive combinations. In two control post groups, no adhesive was applied on the silanized posts. The core material was stratified on deep dentin or on the posts. From the built-up teeth and the post-core units, microtensile sticks were obtained. Results: The bond strengths measured on dentin were (MPa): S-F 12.7 ± 6.4; S-HB 18.3 ± 7.6; E-F 33.1 ± 13.7; E-HB 34.1 ± 10.2; A-F 33.5 ± 14.8; A-HB 35.5 ± 14.4. The post-core strengths were: S-F 9.4 ± 2.5; S-HB 7.1 ± 3.8; E-F 8.6 ± 3.8; E-HB 8.1 ± 4.4; A-F 8.1 ± 2.7; A-HB 8.3 ± 2.4; no adhesive-F 10.4 ± 3.6; no adhesive-HB 6.3 ± 2.7. Significantly higher interfacial strengths were achieved on dentin than on posts (p < 0.05). Adhesive type significantly affected core-dentin adhesion, with Excite DSC and AdheSE outperforming Syntac Classic (p < 0.05). Neither core material viscosity nor adhesive type significantly influenced post-core adhesion (p > 0.05). Omission of an intermediate adhesive layer had no effect on post-core adhesion (p > 0.05). Conclusions: Even after post surface silanization, the bond established by the composite core material with the post remains weaker than that created with coronal dentin.",
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AU - Tay, Franklin R.

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N2 - Purpose: To assess the microtensile bond strengths of a core composite with two different viscosities, MultiCore Flow (F) and Heavy Body (HB) (Ivoclar-Vivadent), on dentin and glass-fiber posts with methacrylate resin matrices, in combination with three dentin adhesives: Syntac Classic (S), Excite DSC (E), and AdheSE (A) (Ivoclar-Vivadent). The omission of an intermediate adhesive coating on silanized posts was also examined to see if this resulted in post-core bond strength reduction. Materials and Methods: Six experimental dentin and 6 experimental post groups were formed with different core material viscosity/adhesive combinations. In two control post groups, no adhesive was applied on the silanized posts. The core material was stratified on deep dentin or on the posts. From the built-up teeth and the post-core units, microtensile sticks were obtained. Results: The bond strengths measured on dentin were (MPa): S-F 12.7 ± 6.4; S-HB 18.3 ± 7.6; E-F 33.1 ± 13.7; E-HB 34.1 ± 10.2; A-F 33.5 ± 14.8; A-HB 35.5 ± 14.4. The post-core strengths were: S-F 9.4 ± 2.5; S-HB 7.1 ± 3.8; E-F 8.6 ± 3.8; E-HB 8.1 ± 4.4; A-F 8.1 ± 2.7; A-HB 8.3 ± 2.4; no adhesive-F 10.4 ± 3.6; no adhesive-HB 6.3 ± 2.7. Significantly higher interfacial strengths were achieved on dentin than on posts (p < 0.05). Adhesive type significantly affected core-dentin adhesion, with Excite DSC and AdheSE outperforming Syntac Classic (p < 0.05). Neither core material viscosity nor adhesive type significantly influenced post-core adhesion (p > 0.05). Omission of an intermediate adhesive layer had no effect on post-core adhesion (p > 0.05). Conclusions: Even after post surface silanization, the bond established by the composite core material with the post remains weaker than that created with coronal dentin.

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