The Journal of clinical dentistry
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Randomized Controlled Trial Comparative Study
Duration and Intensity of Anesthetic Effect Produced by Canker Sore Medications.
Canker sore medications are often recommended to patients for relief of pain associated with aphthous ulcers or other minor irritations of the mouth. The anesthetic effect of these medications is achieved by incorporation of local anesthetics, such as benzocaine, into the products' formulations. ⋯ All three products produced anesthetic effects. Red Cross Canker Sore Medication was shown to have the longest duration and greatest intensity.