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To find the efficacy of RMC infiltration after the failure of IANB injections for irreversible pulpitis.
Infiltration
anesthetic technique has been proved to overcome the anesthetic failure caused
by accessory nerve supply in adults. As described from this clinical study of patients with acute irreversible
pulpitis, the use of retromolar canal (RMC) infiltration was
found to boost the effectiveness of inferior alveolar nerve block (IANB)
technique for numbing mandibular first molars.
To find the efficacy of RMC infiltration after the failure
of IANB injections for irreversible pulpitis.
Fifty patients with acute irreversible pulpitis were given
IANB injection. Lip numbness was considered as a sign of anesthesia, which was
further assessed and confirmed via the pulp sensibility tests after 10 to 15
minutes. The occurrence, absence, or decrease in pain during access cavity
preparation via the Heft-Parker visual analog scale was used to determine the
success of the RMC infilteration.
After the use of IANB Injection, 7 patients did not suffer
from pain as assessed by pulp sensibility tests and throughout the access
cavity preparation. Pain relief was reported by 25 (58.1%) of the remaining 43
patients who had RMC infiltration injection. No change in pain was reported by
14 patients (32.5%). Also, the percentage of patients with decreased pain was
higher as compred to that of other patients.
A combination of RMC infiltration and IANB significantly
provided pain relief and enhanced the success of this anesthetic procedure for endodontic therapy
in case of acute irreversible pulpitis.
Clinical Oral Investigations
Retromolar canal infiltration as a supplement to the inferior alveolar nerve block injection: an uncontrolled clinical trial
Kasra Karamifar et al.
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