Is Masseteric Nerve Block Effective in Myofascial Pain

Not Applicable

Completed

• Conditions: Myofascial Pain - Dysfunction Syndrome of TMJ; Myofascial Trigger Point Pain; Local Anesthesia
• Interventions: Procedure: trigger point injection; Procedure: masseteric nerve block; Procedure: dry needling

• Registration Number: NCT04339673
• Lead Sponsor: Erzincan University

Brief Summary

The aim of the present study was to compare the efficacy of three different treatment methods in the management of myofascial pain: masseteric nerve block (MN), trigger point injection(TrP) with local anesthetic (LA) and dry needling (DN).Study Design: 45 subjects aged 18-54 years were randomly assigned to the MN group (n= 15), LA group (n=15) and DN group (n=15).

Detailed Description

The study sample consisted 45 patients with masseter muscle originated myofascial pain, were selected in accordance with the following criteria:

Patients were grouped according to the treatment they received: dry-needling (DN), TrP injections with local anesthetic (LA) and masseteric nerve block (MNB). Localization of the masseteric trigger points (MTPs) was based on clinician's sense and patients' expressions of pain. Local twitch response was not observable in all case. This procedure was completed by using digital palpation (1.5 Kg), and the clinical examiner's palpation was calibrated using a pressure algometer.

Basic Information
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Recruitment & Eligibility
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Study & Design
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Trial Locations

Study Timeline

• Study Start: 2019-07-01
• Primary Completion: 2019-11-30
• Study Completion: 2019-11-30
• Status Verified: 2020-04
• Study First Submitted: 2020-04-02
• Study First Submitted QC: 2020-04-06
• Last Update Submitted: 2020-04-06
• Study First Posted: 2020-04-09
• Last Update Posted: 2020-04-09

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 45

Inclusion Criteria

• Clinical diagnosis of myofascial pain.
• Presence of at least one trigger point in masseter muscle.

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Exclusion Criteria

• Generalized muscle disorders.
• Hypersensitivity to local anesthetics.

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Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
LA -trigger point injection with local anesthetic	trigger point injection	local anesthetic injections on trigger points in masseter
MNB- masseteric nerve block	masseteric nerve block	masseteric nerve block with local anesthesia lidocaine single app.
DN-dry needling	dry needling	dren needling to masseter

Primary Outcome Measures

Name	Time	Method
The Rate of Pain on Function (PoF) assessed by Numerical pain Scale (NRS)	At 12th week (t3)	Patients rated their pain on function (pain during chewing or speaking etc.) on a Numeric Rating Scale (NRS) (0-10 where 0 is no pain and 10 is the worst pain imaginable)

Secondary Outcome Measures

Name	Time	Method
The measurement of pain-free maximum mouth opening (MMO) in millimeters	At 12th week (t3)	Pain-free MMO was measured as the distance between the incisal edges of the upper and lower incisors while patient's mouth is open as possible without any assistance and without pain in masseter muscle. Three measurements were performed, and their average is recorded.
The Rate of Pain Intensity on Palpation (PoP)	At 12th week (t3)	Patients rated their pain intensity on masseter muscle by a 4-point Likert-type scale (0 = no pain, 3 = as worst pain imaginable) while a calibrated examiner palpating their masseter muscle.

Trial Locations

Locations (1)

Erzincan Ağiz Ve Diş Sağlığı Egt Araş Hastanesi; 🇹🇷 Erzincan, Turkey