Post-operative Sensitivity in Composite Restorations by using Eighth Generation of Bonding Agents a Comparative Clinical Study

Objectives: To compare postoperative sensitivity following composite restoration placed in class I cavities using Eighth generation self etch adhesive"Futurabond"and fifth generation total etch adhesive.
Methods: A total of 25 healthy patients randomly selected aged between 18-35 (average 23.5 yrs) having class I carious lesions were divided into two groups. Fifty Class I cavities (n=25) not exceeding 3 mm were prepared. One treatment group was treated with self- etch adhesive "Futurabond^®, VOCO"and the control group was treated with total-etch adhesive " Tetric N-Bond^®, IvoclarVivadent" after acid etching with 37%phosphoric acid. Light cured composite "Tetric N-Ceram, IvoclarVivadent"restoration was placed for both groups and evaluated for postoperative sensitivity, after 48 hours, one week, one month and three months. Materials were applied according to the manufacturer instructions(Fig1).Results were evaluated statistically using Mann-Whitney, Friedman, and Wilcoxon tests to compare postoperative sensitivity using SPSS v16.0 software (P<0.05)
(Fig 2,3).
Results: Comparison of sensitivity between the two treatment groups on application cold stimulus after 48 hours of restoration showed significant difference; however, no statistically significant difference was observed at one week, one month and three months follow-up with compressed air application.
Conclusions: Less postoperative sensitivity was observed at postoperative 48 hours assessment in restoration placedusing SE adhesives compared to TE adhesives. Thus, the use of SE adhesives may be helpful in reducing postoperativesensitivity during 48 hours after restoration placement.