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Success Rate of Anterior Middle Superior Alveolar (AMSA) Nerve Block in Three Different Sites of Injection

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02012257
Enrollment
40
Registered
2013-12-16
Start date
2012-09-30
Completion date
2013-08-31
Last updated
2013-12-16

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

Conditions

Anesthesia; Functional

Keywords

anterior middle superior alveolar nerve, electric pulp tester, local anesthesia

Brief summary

AMSA nerve block injection is targeted anterior superior alveolar nerve and middle superior alveolar nerve branches of infraorbital nerve through nutrient canals. Therefore, central to second premolar teeth of one quadrant can be anesthetized. The aim of the present study was to evaluate the efficacy of AMSA nerve block injection at an anterior and a posterior positions compared to commonly administrated site.

Detailed description

AMSA: Anterior middle superior alveolar

Interventions

PROCEDUREAMSA nerve block injectio

Sites of injection

Sponsors

Shahid Beheshti University of Medical Sciences
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
CROSSOVER
Masking
DOUBLE (Subject, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Healthy volunteers
Yes

Inclusion criteria

* Healthy subject * Subjects had all their maxillary teeth from second premolar of one side to the second premolar of another Neither of these teeth was non vital, nor had large restorations, prosthetic crowns, caries, periodontal disease, history of trauma, and hypersensitivity.

Exclusion criteria

* Use medications alleviating or altering the pain sensation * Allergy to anesthetics Pregnancy

Design outcomes

Primary

MeasureTime frameDescription
Pulpal anesthesia of central incisor to second premolar by electric pulp tester (EPT)After each injection (base line) to 60 minutesEach teeth were evaluated by electric pulp tester immediately after injection to 60 minutes every six minutes. Having no reaction to the EPT was the criterion of considering a tooth has been anaesthetized. Anesthesia was considered successful if no reaction to the maximum output for two consecutive tests.

Outcome results

None listed

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