The Journal of the American Dental Association
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Randomized Controlled Trial Multicenter Study Clinical Trial
Analgesic efficacy and safety of an intraoral lidocaine patch.
The effectiveness of intraoral II-docaine patches was tested by asking participants to rate the pain experienced after insertions of a 25-gauge needle. Needlesticks were performed at baseline and at various time points after patch placement. ⋯ Drug-related side effects were minimal and venous blood levels of lidocaine were low, averaging 10 to 14 times less than those achieved with a typical injection of lidocaine plus epinephrine. The authors conclude that the lidocaine patches used in this study are effective and safe in reducing needle insertion pain in adults.