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Efficacy of Two Injection Techniques on Success Rate of Inferior Alveolar Nerve Anesthesia

Comparative Efficacy of Gow-Gates and Inferior Alveolar Nerve Block Injection Techniques on Success Rate of Anesthesia in Patients With Symptomatic Irreversible Pulpitis

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02543619
Enrollment
40
Registered
2015-09-07
Start date
2015-03-31
Completion date
2015-08-31
Last updated
2015-09-07

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Failed Mechanical Induction

Brief summary

Forty healthy patients with including criteria who failed to infra alveolar nerve block injection (without lip numbness) have been randomly divided into two groups on a random basis and have received Gow-Gates or another inferior alveolar nerve block injection. Endodontic access cavity preparation has been initiated after complete anesthesia. If patients felt any pain during the steps of caries or dentin removal, Endodontic access cavity preparation or canal working length determination, treatment has been stopped and their pain has been measured by Heft Parker 170 mm Visual Analog Scale (Zero as no pain and 170 as maximum pain ).The data has been analyzed by Mann-U-Whitney and CHI- SQUARE tests.

Detailed description

The aim of this study was to assess the efficacy of Gow-Gates and inferior alveolar nerve block on success rate of anesthesia in patients with irreversible pulpitis. In this prospective, randomized, double-blind study , forty healthy patients with symptomatic irreversible pulpitis and including criteria who failed to infra alveolar nerve block injection (without lip numbness) have been randomly divided into two groups on a random basis and have received Gow-Gates or another inferior alveolar nerve block injection. Their pain has been evaluated by electric pulp tester every 5 minutes for two times. Endodontic access cavity preparation has been initiated after complete anesthesia. If patients felt any pain during the steps of caries or dentin removal, Endodontic access cavity preparation or canal working length determination, treatment has been stopped and their pain has been measured by Heft Parker 170 mm Visual Analog Scale (Zero as no pain and 170 as maximum pain ). The patients have been instructed to rate any pain during each of the mentioned steps. The data have been analyzed by Mann-U-Whitney and CHI- SQUARE tests.

Interventions

OTHERInjection technique

One group received Gow-Gates technique and the other group received Infra Alveolar Nerve Block technique for their failed first one anesthesia

Sponsors

Azad University of Medical Sciences
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to 65 Years
Healthy volunteers
Yes

Inclusion criteria

* Patients with symptomatic irreversible pulpitis ( Visual Analog Scale ≥ 54) in one mandibular molar who need root canal treatment * without systemic diseases * non smoking * non analgesic/sedative or any medicine consumption * non pregnant * non breast feeding * the patients who received one conventional inferior alveolar nerve block and their block was failed ( without lip numbness)

Design outcomes

Primary

MeasureTime frameDescription
Pain Score4 HoursHeft Parker 170 mm Analog Visual Scale

Countries

Iran

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026