Hydrostatic intrapulpal pressure and bond strength of bonding systems

C. Prati, D. H. Pashley, G. Montanari

Research output: Contribution to journalArticle

86 Citations (Scopus)

Abstract

The purpose of this study was to evaluate the effect of intra-pulpal pressure on shear bond strength of three light-cured glass-ionomer cements (GC lining cement, Vitrabond, and Zionomer) and four dentin bonding agents [Gluma/ Scotchbond, Scotchbond 2, MBL, and Clearfill Photo Bond]. Buccal dentin surfaces were prepared just below the DEJ by means of a diamond bur. Dentin treatments were made for Zionomer (Zionomer conditioner), Scotchbond 2 (Scotchprep), MBL (10-3 solution), Clearfill PB (H3PO4), GC lining cement (Polyacrylic acid), and Gluma/Scotchbond (EDTA). Resin composites were inserted into tubes, positioned on dentin, cured, tested after five min or 24 h, and compared with samples bonded and stored under an intra-pulpal pressure of 36 cm of saline. After 24 h in superficial dentin, intrapulpal pressure reduced the bond strength only in MBL, Scotchbond 2, and Zionomer. Clearfill PB bond strength was increased, while Vitrabond, GC lining cement, and Gluma/Scotchbond were unaffected by the presence of pulpal pressure. However, in deep dentin, Scotchbond 2 and Clearfill PB shear bond strengths were significantly reduced by storage in the presence of 36-cm H2O pulpal pressure. Only Vitrabond remained unaffected by pulpal pressure in deep dentin.

Original languageEnglish (US)
Pages (from-to)54-58
Number of pages5
JournalDental Materials
Volume7
Issue number1
DOIs
StatePublished - Jan 1991

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Hydrostatic Pressure
Hydrostatic pressure
Dentin
Pressure
Cements
Linings
Shear Strength
carbopol 940
Dentin-Bonding Agents
Glass Ionomer Cements
Diamond
Ionomers
Composite Resins
Cheek
Bond strength (materials)
Ethylenediaminetetraacetic acid
Edetic Acid
Diamonds
Resins
Light

ASJC Scopus subject areas

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

Cite this

Hydrostatic intrapulpal pressure and bond strength of bonding systems. / Prati, C.; Pashley, D. H.; Montanari, G.

In: Dental Materials, Vol. 7, No. 1, 01.1991, p. 54-58.

Research output: Contribution to journalArticle

Prati, C. ; Pashley, D. H. ; Montanari, G. / Hydrostatic intrapulpal pressure and bond strength of bonding systems. In: Dental Materials. 1991 ; Vol. 7, No. 1. pp. 54-58.
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