Adhesion of a glass-ionomer root canal sealer to human dentine.

Abstract

This in vitro study evaluated the effect of smear layer removal on adhesion to human dentine of Ketac-Endo, Grossman, and Sealer 26 root canal sealers. A total of 60 extracted human maxillary and mandibular molars with their crowns ground flat were used. The teeth were divided into two groups: Group 1, the dentine surface received no treatment; Group 2, EDTA-C was applied to the dentine surface for 5 min. Ten samples were tested for each sealer and each group. Adhesion was measured with a Universal Testing Machine. Sealer 26 showed greater adhesion both with and without smear layer (p < 0.01). Ketac-Endo and Grossman sealers were statistically equal, having the lowest values of adhesion. Application of EDTA-C did not alter the adhesion of Ketac-Endo and Grossman sealers. However, the use of EDTA-C increased the adhesion of Sealer 26. The epoxy resin-based root canal sealer (Sealer 26) adhered better to dentine prepared with and without EDTA-C than glass-ionomer-based sealers and the zinc oxide eugenol-based (Ketac-Endo and Grossman) sealers.

• Authors: A L Najar, P C Saquy, L P Vansan, M D Sousa-Neto
• Journal: Australian endodontic journal : the journal of the Australian Society of Endodontology Inc (Aust Endod J) Vol. 29 Issue 1 Pg. 20-2 (Apr 2003) ISSN: 1329-1947 [Print] Australia
• PMID: 12772967 (Publication Type: Journal Article)

Chemical References

• Chelating Agents
• Epoxy Resins
• Glass Ionomer Cements
• Ketac Endo
• Root Canal Filling Materials
• Sealer 26
• Zinc Oxide-Eugenol Cement
• Grossman's sealer
• EDTAC
• Edetic Acid
• Calcium Hydroxide
• Bismuth

Topics

• Adhesiveness
• Bismuth (chemistry)
• Calcium Hydroxide (chemistry)
• Chelating Agents (chemistry)
• Dental Bonding
• Dental Stress Analysis (instrumentation)
• Dentin (ultrastructure)
• Edetic Acid (analogs & derivatives, chemistry)
• Epoxy Resins (chemistry)
• Glass Ionomer Cements (chemistry)
• Humans
• Materials Testing
• Root Canal Filling Materials (chemistry)
• Smear Layer
• Stress, Mechanical
• Zinc Oxide-Eugenol Cement (chemistry)