Bonding of resin composite to caries-affected dentin after Carisolv(®) treatment.

Abstract

PURPOSE:

The purpose of this study was to investigate the effect of Carisolv(®) on resin composite adhesion on caries-affected dentin.

METHODS:

Carious lesion specimens (N =46) were prepared from 45 extracted primary molars: Group 1 (N =23)-chemomechanical (Carisolv(®)) treatment; Group 2 (N =23)-rotary instrumentation; and Group 3 (N =23)-caries-free specimens from 20 noncarious primary molars. After caries removal (Groups 1 and 2) or washing and drying (Group 3), a resin composite rod (2-mm high, 0.975-mm diameter) was bonded vertically to dentin. Specimens were stressed at constant displacement (1.0 mm/minute) to failure; treated surfaces were examined under a scanning electron microscope.

RESULTS:

The mean (±SD) microshear bond strengths of resin composite to dentin were: Group 1=6.69 (±4.08) MPa; Group 2=10.31 (±5.47) MPa; and Group 3=7.16 (±6.64) MPa. The mean bond strength of resin composite of Group 2 significantly exceeded that of Groups 1 (P=.02) and 3 (P=.01); Groups 1 and 3 did not differ significantly. There was no significant association between failure mode and treatment type (P=.22) or mean bond strength (P=.44). Carisolv(®) removed the smear layer or limited its formation, producing demineralization incompletely infiltrated by resin composite.

CONCLUSION:

Chemomechanical treatment of caries-affected dentin of primary teeth did not adversely affect resin composite bonding.

• Authors: Feda Zawaideh, Joseph E A Palamara, Louise B Messer
• Journal: Pediatric dentistry (Pediatr Dent) 2011 May-Jun Vol. 33 Issue 3 Pg. 213-20 ISSN: 0164-1263 [Print] United States
• PMID: 21703073 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't)

Chemical References

• Carisolv
• Composite Resins
• Dental Materials
• Dentin-Bonding Agents
• Filtek Supreme
• Phosphoric Acids
• single bond
• Glutamic Acid
• Bisphenol A-Glycidyl Methacrylate
• phosphoric acid
• Leucine
• Lysine

Topics

• Acid Etching, Dental (methods)
• Adhesiveness
• Bisphenol A-Glycidyl Methacrylate (chemistry)
• Composite Resins (chemistry)
• Dental Bonding
• Dental Caries (pathology)
• Dental Cavity Preparation (instrumentation, methods)
• Dental Materials (chemistry)
• Dental Stress Analysis (instrumentation)
• Dentin (pathology)
• Dentin-Bonding Agents (chemistry)
• Desiccation
• Glutamic Acid (chemistry)
• Humans
• Leucine (chemistry)
• Lysine (chemistry)
• Materials Testing
• Microscopy, Electron, Scanning
• Phosphoric Acids (chemistry)
• Shear Strength
• Smear Layer
• Stress, Mechanical
• Surface Properties