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Please use this identifier to cite or link to this item: http://hdl.handle.net/1807/25589

Title: Retrospective Review of Reports of Non-surgical Paresthesia in Dentistry
Authors: Gaffen, Andrew
Advisor: Haas, Daniel
Department: Dentistry
Keywords: Dentistry
Local Anesthetics
Paresthesia
Issue Date: 31-Dec-2010
Abstract: Paresthesia is a possible adverse event associated with the administration of local anesthetics in dentistry. The purpose of this study was to analyze the 182 cases of non-surgical paresthesia associated with local anesthetic injection that were reported to Ontario’s Professional Liability Program from 1999 to 2008. Examined case parameters included patient age and gender, type and volume of local anesthetic, site of nerve injury, and other symptoms. All but two cases involved mandibular block injection. From 2006 to 2008 alone, 64 cases were reported; this projects to a reported incidence of 1 in 609,000 injections. For both anesthetic drugs available as 4% solutions, namely articaine and prilocaine, the observed frequencies for reporting were significantly greater than expected (chi-square, exact binomial distribution; P<0.01) based on the distribution of local anesthetic use by Ontario dentists. These data suggest that local anesthetic neurotoxicity may be involved in the development of post-injection paresthesia.
URI: http://hdl.handle.net/1807/25589
Appears in Collections:Master
Faculty of Dentistry - Master theses

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