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J Endod. 2007 Sep;33(9):1021-4.

A prospective, randomized, double-blind comparison of bupivacaine and lidocaine for maxillary infiltrations.

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1
Section of Endodontics, College of Dentistry, Ohio State University, 305 West 12th Avenue, Columbus, OH 43210, USA.

Abstract

The purpose of this prospective, randomized, double-blind study was to evaluate the anesthetic efficacy of 1.8 mL 0.5% bupivacaine with 1:200,000 epinephrine and 1.8 mL of 2% lidocaine with 1:100,000 epinephrine in maxillary lateral incisors and first molars. Sixty-five subjects randomly received, in a double-blind manner, two infiltrations at two separate appointments, in a crossover design. The injections consisted of maxillary lateral incisor and first molar infiltrations of 1.8 mL 0.5% bupivacaine with 1:200,000 epinephrine and 1.8 mL 2% lidocaine with 1:100,000 epinephrine. In maxillary lateral incisors, bupivacaine exhibited a significantly lower anesthetic success rate (obtaining two consecutive 80 readings with the pulp tester within 10 minutes) of 78% when compared with a 97% success rate with lidocaine. In maxillary first molars, bupivacaine's onset of pulpal anesthesia (7.7 minutes) was significantly slower than lidocaine (4.3 minutes). Bupivacaine had a lower success rate than lidocaine (64% versus 82%) but there was no significant difference between the two solutions. Neither solution provided pulpal anesthesia for 1 hour.

PMID:
17931925
DOI:
10.1016/j.joen.2007.06.003
[Indexed for MEDLINE]
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