Comparison of the Effects of Local Pressure and Topical Anaesthetic Using 20% Benzocaine, 60% Lidocaine Gel, and Infiltration for Maxillary Anterior Teeth

Abstract

Objective: The purpose of this study was to determine the efficacies of 2 topical anesthesia commonly used in dentistry and local pressure on pain during infiltration injection for maxillary anterior teeth.

Study design: the alveolar mucosa of the upper incisors apices of 100 healthy volunteers was applied for 1 minutes with either 20% benzocaine gel or nothing as a control. The second part of experiment was done with 60% lidocaine gel and vehicles control. The third part used pressure before infiltration and then stimulation were given, and the pain rating score and visual analog pain scale were measured after each. Methods of stimulation in contrast, 60% lidocaine significantly reduced pain perception according to these measurement. We conclude that 60% lidocaine gel is effective for topical anesthesia before infiltration anesthesia, oral surg oral med oral pathol oral radial endod 2002; 94: 157-61.

Results: Showed that lidocaine reduced the injection pain significantly more than benzocaine. Application of local pressure reduced the injection pain, but the difference from the control not significant.

Conclusion: Topical anesthesia 60% lidocaine was more effective than 20% benzocaine in reducing pain severity during infiltration injection. However, it was not significantly different in comparison to the application of local pressure.