Incompatibility of oxalate desensitizers with acidic, fluoride-containing total-etch adhesives
| Autor: | Ricardo M. Carvalho, Byoung I. Suh, L.J. Sharp, Cky Yiu, David H. Pashley, Franklin R. Tay, Nigel M. King |
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| Rok vydání: | 2005 |
| Předmět: |
0301 basic medicine
Dental Stress Analysis Inorganic chemistry Calcium oxalate Oxalate Statistics Nonparametric Drug Incompatibility 03 medical and health sciences chemistry.chemical_compound Fluorides 0302 clinical medicine stomatognathic system Tensile Strength Materials Testing Dentin medicine Single bond Humans Solubility General Dentistry Analysis of Variance Oxalates Bond strength Oxalic Acid Dental Bonding 030206 dentistry Dentin Sensitivity Hydrogen-Ion Concentration Resin Cements Dentin Permeability Microscopy Electron 030104 developmental biology medicine.anatomical_structure chemistry Dentin-Bonding Agents Adhesive Fluoride |
| Zdroj: | Journal of dental research. 84(8) |
| ISSN: | 0022-0345 |
| Popis: | The use of oxalate desensitizers on acid-etched dentin prior to adhesive application can result in subsurface tubular occlusion by calcium oxalate crystals. However, the solubility of calcium oxalate increases in acidic solution. We hypothesized that total-etch adhesives can, depending upon their pH, interact with oxalate-desensitizer-treated dentin in an adverse manner. Acid-etched human dentin treated with 2 oxalate desensitizers (BisBlock and Super Seal) was bonded with 4 simplified total-etch adhesives: One-Step (OS), Single Bond (SB), OptiBond Solo Plus (OB), and Prime&Bond NT (PB). Composite-dentin beams were examined by SEM and TEM, both of which revealed numerous spherical globules on OB- and PB-bonded, desensitizer-treated dentin, but not in OS or SB samples. Bond strengths produced by OB and PB were significantly lower in oxalate-treated specimens than those produced by OS or SB. These surface globules may have interfered with hybridization of demineralized dentin with OB and PB resins and caused compromised bond strengths. |
| Databáze: | OpenAIRE |
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