Method: Eligible Patients (N=45) were screened and randomized into 3 groups (n=15). Groups 1 & 2 involved sealing the freshly prepared dentin with either a total etch adhesive (ACE ALL-BOND TE) or a self etch adhesive (ACE ALL-BOND SE). Group 3 (Control) patients received their crowns under standard procedures without sealing. Sensitivity was evaluated: (1) 5 days after preparation (phone), before final crown cementation (VAS Scale) and 5 days after final cementation (phone). Phone call sensitivity was rated as: 1=no sensitivity, 2=mild, 3=significant and 4=severe. All crowns were cemented with BISCEM self adhesive cement. The VAS data was analyzed using a one-way ANOVA, and Tukey’s HSD multiple comparison test. Data collected from phone call surveys were analyzed by the Kruskal-Wallis test. Dependant data within the groups (post preparation vs post cementation) were analyzed with the Willcoxin signed rank test.
Result: Sensitivity ratings for phone call evaluation at the temp stage showed that Group1 (TE) had 5 subjects with none, 6 with mild, 3 with significant, 1 with severe responses. Group 2 had 6 subjects with none, 8 with mild, 1 with significant responses. Group 3 had 8 subjects with none, 4 with mild and 3 with significant responses. For post crown cementation, Group 1 had 8 subjects with none, 6 with mild, 1 with significant responses. Groups 2&3 had 6 subjects with none, 8 with mild, 1 with significant responses. VAS scale survey resulted in mean values of 35.6±29.9 for Group 1, 24±23.4 for Group 2 and 25.6±28.3 for Group 3.
Conclusion:Within the limitation of this study, there was no significant difference in sensitivity between the 3 groups at any time period.