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European Journal of Dentistry and Medicine
  Year: 2012 | Volume: 4 | Issue: 2 | Page No.: 14-25
DOI: 10.3923/ejdm.2012.14.25
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The Adverse Effects of Nano bond Adhesive Systems Used as Direct Pulp Capping Materials

Sahar A.M. Abd El Halim and Dalia H. El-Rouby

The purpose of this study was to evaluate the histopathological changes in mechanically exposed dog's pulps capped with Nano bond®, Clearfil SE Bond Self-etching adhesive systems in comparison to Dycal. Six dogs were used in this study. Class V cavities were prepared on the buccal surface of 15 intact teeth in each dog. Pulps were then mechanically exposed, then capped according to each group: Group (1): Control, pulp capped with CH Dycal (lower right side), Group (2): Pulp capped with Nano bond®, Group (3): Pulp capped with Clearfil SE Bond (SE). The cavities were restored with Nano composite Filtek Supreme XT. Dogs were sacrificed at 7, 14, 30 days postoperatively. Teeth were fixed, decalcified, processed and stained with hematoxylin and eosin. The histopathological features were examined and graded using light microscopy. The data were statistically analyzed using Kruskal-Wallis test. For both adhesive systems, the pulp tissue exhibited moderate to severe inflammatory infiltrate involving the coronal pulp. Dycal induced a less severe inflammatory response and more consistent formation of reparative dentine. Statistically significant differences in inflammatory response, tissue disorganization and hard tissue formation were observed among teeth treated with adhesive systems and Dycal. A less favorable pulpal response was noted in the experimental groups in comparison to the control. Aiming to avoid the limited physical properties of Ca(OH)2-based materials, self etching restorative materials developed by nanotechnology were evaluated as potential pulp capping material. Unfortunately, the tested materials failed to produce a favorable pulp response.
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How to cite this article:

Sahar A.M. Abd El Halim and Dalia H. El-Rouby, 2012. The Adverse Effects of Nano bond Adhesive Systems Used as Direct Pulp Capping Materials. European Journal of Dentistry and Medicine, 4: 14-25.

DOI: 10.3923/ejdm.2012.14.25






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