Preoperative acupuncture stimulation at LI4 acupoint
significantly improved analgesic of inferior alveolar nerve block for the teeth
with symptomatic irreversible pulpitis. The study was reported in the Journal
of Endodontics.
Pain control is one of the most challenges during an endodontic
surgery for dentists especially in mandibular posterior teeth with irreversible
pulpitis. To anaesthetize the mandibular posterior teeth, inferior alveolar
nerve block is usually applied. However the procedure does not always provide
satisfactory anaesthesia for patients with irreversible pulpitis.
The Dr NM Majd and colleagues in Iran performed a
randomized triple-blind clinical trial to assess the effect of preoperative
acupuncture on the success rate of inferior alveolar nerve block for teeth with
symptomatic irreversible pulpitis. Forty patients with irreversible pulpitis
were randomly divided into two acupuncture and control groups. In acupuncture
group patients were given acupuncture at LI4 acupoint for 15 min, and then
inferior alveolar nerve block was administered. In control group patients were
given sham acupuncture, with a mimicking acupuncture procedure without
inserting needle into LI4 acupoint and then given inferior alveolar nerve block
injection.
It was found that the success rate of inferior alveolar
nerve block was 60% in acupuncture group compared with only 20% in control
group. Further patients in acupuncture group reported no side effect up to 48
hours after the procedures.
Authors suggest that preoperative acupuncture treatment
significantly increased effectiveness of inferior alveolar nerve block for
mandibular teeth with irreversible pulpitis.
Reference:
NM Majd et al., The
Effect of Acupuncture on the Success of Inferior Alveolar Nerve Block for Teeth
with Symptomatic Irreversible Pulpitis: A Triple-blind Randomized Clinical
Trial. J Endod. 2015 Jun 16. pii: S0099-2399(15)00447-1. http://www.ncbi.nlm.nih.gov/pubmed/26092771
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