Anesthetic Efficacy of 1,8mL and 3,6mL of Articaine in Inferior Alveolar Nerve Block in Irreversible Pulpitis
Status:
Completed
Trial end date:
2016-06-01
Target enrollment:
Participant gender:
Summary
Ninety patients with irreversible pulpitis diagnostic will participate in this clinical
study. The participants will be divided into 2 groups of 45 patients, who will receive the
inferior alveolar nerve block injections of 1.8 mL of 4% articaine (Articaine 100; DFL, Rio
de Janeiro, RJ, Brazil) with 1:100,000 epinephrine or 3.6mL of the same solution. Two
consecutive negative responses to the maximum pulp stimulus (80 µA) at the electric pulp test
were the criterion to determine a pulpal anesthesia as successful. Ten minutes after the IAN
block, subjective lip anesthesia will be evaluated by asking the patient whether his/her lip
was numb. Thereafter and immediately before the pulpectomy, the electric pulp stimulations
will be repeated to determine pulpal anesthesia. During the pulpectomy procedure, the
patients were instructed to report any painful discomfort. To evaluate the intensity of pain
during the pulpectomy, a verbal analogue scale will be used. The anesthesia will be defined
as successful when the dentist accessed the pulp chamber without pain being reported by the
patient. In these cases, the pulpectomy will be continued. If report pain will classified the
IAN block as unsuccessful.