Abstract
Objectives
The aim of this study was to compare the onset, success rate, injection pain, and post-injection pain of mental/incisive nerve block (MINB) with that of inferior alveolar nerve block (IANB) using 4% articaine in mandibular premolars with symptomatic irreversible pulpitis. The accuracy of electrical pulp test (EPT) in determining pulpal anesthesia was also examined.
Materials and methods
The study was designed as a randomized clinical trial with two study arms—MINB and IANB. Injections were performed using a standardized technique. Root canal treatment was initiated 10 min after the injection. Success was defined as no pain or mild pain during access cavity preparation and instrumentation. Injection pain and post-injection pain (up to 7 days) were recorded. All pain ratings were done using Heft-Parker Visual Analog Scale (HP VAS).
Results
Sixty-four patients were enrolled. The success rate of MINB (93.8%) was higher than IANB (81.2%) but the difference was not significant (p > 0.05). The onset of anesthesia with MINB was significantly quicker, and injection pain was significantly less (p < 0.05), but post-injection pain was significantly higher during the first 4 days (p < 0.001). The accuracy of EPT in determining pulpal anesthesia was 96.88%.
Conclusions
MINB and IANB with 4% articaine had similar efficacy in anesthetizing mandibular premolars with irreversible pulpitis. Post-injection pain with MINB was higher than with IANB.
Clinical relevance
MINB and IANB with 4% articaine can be used interchangeably to anesthetize mandibular premolars with irreversible pulpitis.
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Acknowledgements
The authors gratefully acknowledge Dr. Prashant Verma, at University of Maryland School of Dentistry, for the scientific and grammar editing of the manuscript.
Funding
This work was supported by Tehran University of Medical Sciences in Tehran, Iran.
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The authors declare that they have no conflict of interest.
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All procedures performed involving human participants in this study were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
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Informed consent was obtained from all individual participants included in the study.
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Ghabraei, S., Shubbar, A., Nekoofar, M.H. et al. Anesthetic efficacy of mental/incisive nerve block compared to inferior alveolar nerve block using 4% articaine in mandibular premolars with symptomatic irreversible pulpitis: a randomized clinical trial. Clin Oral Invest 23, 839–845 (2019). https://doi.org/10.1007/s00784-018-2500-4
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DOI: https://doi.org/10.1007/s00784-018-2500-4