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Randomized controlled trial study for preventing dental fear during caries treatments
Younong Wu1, Zongdao Shi, Junnan Shi
1Department of Oral Medicine, School of Stomatology, Nanjing Medical University, Nanjing 210029, China.
Objective:
To determine the clinical effects of preventing dental fear (DF) by pre-operation-education or local anesthesia method during the process of tooth filling.
Methods:
150 school children, aged 7 to 12, participated present study. All of them suffered from occlusal caries on their mandibular first permanent molars. They were divided into 3 equal groups, and each had 50, 25 boys and 25 girls. Group1 (pre-operation-education): taking about 1 hour to show them science and educational video tape on caries, then, clinic environment, including machine and instruments, and answering their questions; Group2 (local anesthesia): about 15 minutes before treatment, injecting 1.8 ml of 2% lidocaine for local anesthesia; Group3 (blank): without any measurements for DF. After that, all subjects accepted same filling treatment as usual. DF of each case was evaluated by 3 evaluators blindly based on venham's clinical ratings of anxiety and cooperative.
Results:
Significant difference was found between groups (0.57 +/- 0.59, 0.83 +/- 0.66, 1.05 +/- 0.68, H = 18.646, P = 0.0001), also in DF rate (10%, 18% and 42%, chi(2) = 15.5031, P = 0.0004). But not between groups 1 and 2.
Conclusion:
During decayed tooth filling treatment, pre-operation-education is better than that of local anesthesia method, in DF prevention.
