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

Not Applicable

Completed

• Conditions: Anesthesia; Functional
• Interventions: Procedure: AMSA nerve block injectio

• Registration Number: NCT02012257
• Lead Sponsor: Shahid Beheshti University of Medical Sciences

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

Study Timeline

• Study Start: 2012-09
• Primary Completion: 2013-08
• Study Completion: 2013-08
• Status Verified: 2013-12
• Study First Submitted: 2013-12-08
• Study First Submitted QC: 2013-12-10
• Last Update Submitted: 2013-12-10
• Study First Posted: 2013-12-16
• Last Update Posted: 2013-12-16

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 40

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

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: CROSSOVER

Arm && Interventions

Group	Intervention	Description
Common Site	AMSA nerve block injectio	AMSA nerve block injection
Anterior Site	AMSA nerve block injectio	AMSA nerve block injection
Posterior Site	AMSA nerve block injectio	AMSA nerve block injection

Primary Outcome Measures

Name	Time	Method
Pulpal anesthesia of central incisor to second premolar by electric pulp tester (EPT)	After each injection (base line) to 60 minutes	Each 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.