A histopathologic study of direct pulp-capping with adhesive resins.
OBJECTIVE
The purpose of this study was to evaluate the histologic pulp responses of Optibond and Syntac adhesive resin systems placed directly on exposed pulp tissues.


METHODS
Class V facial cavities with pulpal exposures were prepared in dogs. After acid etching of enamel margins, the cavities were restored with a composite resin after pulp-capping with one of the dentin bonding agents. The remaining exposures were capped with calcium hydroxide and amalgam as controls. The animals were killed after 7, 21, and 90 days and the pulps were evaluated histologically. Statistical analysis was carried out with the chi-square test.


RESULTS
There was no statistically significant difference with respect to inflammatory cell response, fibrosis, bleeding, or bacterial staining criteria over the time intervals of evaluation among the Optibond, Syntac, and calcium hydroxide groups. New dentin formation was also observed for all of the groups at the end of 90 days.


CONCLUSIONS
The results of direct pulp-capping with a dentinal adhesive and composite resin appear promising but further in vivo studies are recommended.
Olmez
A
A
Faculty of Dentistry, Department of Pedodontics, Gazi University, Ankara, Turkey.
Oztaş
N
N
Başak
F
F
Sabuncuoğlu
B
B
D000134:Acid Etching, Dental; D000818:Animals; D001419:Bacteria / Q000302:isolation & purification; D002126:Calcium Hydroxide / Q000627:therapeutic use; D016009:Chi-Square Distribution; D004396:Coloring Agents; D003188:Composite Resins; D003723:Dental Amalgam; D003737:Dental Cavity Preparation / Q000145:classification; D003743:Dental Enamel / Q000648:ultrastructure; D003782:Dental Pulp / Q000382:microbiology / Q000473:pathology*; D003785:Dental Pulp Capping / Q000379:methods*; D003789:Dental Pulp Exposure / Q000628:therapy; D003793:Dental Restoration, Permanent; D003809:Dentin, Secondary / Q000033:anatomy & histology; D017220:Dentin-Bonding Agents / Q000627:therapeutic use*; D004285:Dogs; D005069:Evaluation Studies as Topic; D005355:Fibrosis; D006470:Hemorrhage / Q000473:pathology; D011671:Pulpitis / Q000473:pathology; D019279:Resin Cements / Q000627:therapeutic use*; D013997:Time Factors
D004396:Coloring Agents; D003188:Composite Resins; D017220:Dentin-Bonding Agents; C092987:Optibond; D019279:Resin Cements; C078484:Syntac dentine adhesive; D003723:Dental Amalgam; D002126:Calcium Hydroxide