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The Effectiveness of a Physiotherapy Technique in Patients With Chronic Myofascial Temporomandibular Disorder

The Effectiveness of the Pressure Release Technique on Masticatory and Neck Muscle Trigger Points in Patients With Chronic Myofascial Temporomandibular Disorder

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03619889
Acronym
TrP-TMD
Enrollment
74
Registered
2018-08-08
Start date
2015-10-31
Completion date
2017-09-30
Last updated
2020-03-20

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

Conditions

Myofascial Pain Syndrome, Temporomandibular Disorder

Keywords

Chronic Pain, Physical Therapy modalities

Brief summary

Participants with chronic orofacial pain caused by masticatory and neck muscles will be distributed in two groups, both followed with the same occlusal and self-care treatment. The experimental group will receive 5 sessions of physiotherapy applying a specific pressure on the trigger points while the control group will receive placebo through a simulation of the same technique. Orofacial perceived pain, pain pressure thresholds, catastrophizing, kinesiophobia, cervical disability, depression and anxiety will be evaluated at baseline, immediately after treatment and 3 months later.

Interventions

OTHERManual pressure release technique on trigger points.

A specific pressure is applied on trigger points of masticatory and neck muscles between pain pressure threshold and pain tolerance (7-8 visual analog scale).

OTHERSham

A simulated pressure release technique is applied around masticatory and neck muscles.

Sponsors

Universidad Complutense de Madrid
Lead SponsorOTHER

Study design

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

Masking description

Participants don´t know to which group are assigned The statistical assessor don´t know the aim of the study

Intervention model description

clinical trial, prospective, randomized and experimental with masking of the statistician and the participants

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Patients ≥18 years. * Patients diagnosed of myofascial TMD with at least one TrP with referred pain. * TMD patients with a current complaint of myofascial pain with more than 6 months of evolution. * Patients with myofascial TMD initially treated with splint currently used, that has not been modified in the last 6 months, without improvement.

Exclusion criteria

* Patients treated with occlusal splint recently modified. * Patients with acute TMJ diseases. * Patients with systemic disease, neurological and muscular diseases. * Patients with psychiatric or psychological disorders. * Patients with cervical disc hernia and acute whiplash injury. * Changes in the painkillers intake during the experiment.

Design outcomes

Primary

MeasureTime frameDescription
Changes of Perceived Pain Between Three Time Points (Baseline, Post-treatment, and 3 Months Later) and Between Groups (Sham Simulation and Pressure Release Technique)Change from baseline in the scale at post-treatment and at 3 months laterThe Visual Analogue Scale (0-10) was used, 0 representing no pain/better outcome, and 10 representing unbearable pain/worst outcome. the clinical minimum relevance outcome is at least a change of 1.2 points in the scale.

Secondary

MeasureTime frameDescription
Changes in the Range of the Opening of the MouthChange from baseline in the scale at post-treatment and at 3 months laterA calibrator Dentaurum München was used, measured in millimetres, with 0 representing no opening/worst outcome and as higher values/as a better outcome.
Changes in the Neck DisabilityChange from baseline in the scale at post-treatment and at 3 months laterThe Neck Disability Index was used (0-50), with 0 representing no disability neck/best outcome and 50 maximum disability neck/worst outcome.
Changes in the KinesiophobiaChange from baseline in the scale at post-treatment and at 3 months laterThe Tampa Scale for Kinesiophobia -11 was used (0-44), with 0 representing no kinesiophobia/best outcome and 44 representing the highest level of kinesiphobia/worst outcome.
Changes in the CatastrophizingChange from baseline in the scale at post-treatment and at 3 months laterThe Pain Catastrophizing Scale was used (0-52), with 0 representing no catastrophizing/best outcome and 52 representing the highest level of catastrophizing/worst outcome.
Changes in the State AnxietyChange from baseline in the scale at post-treatment and at 3 months laterThe State-Trait Anxiety Index was used, lower values represent a better outcome. State and Trait were evaluated individually, range of scores for each subtest is 20-80, with 20 representing no state anxiety/best outcome and 80 representing the highest level of state anxiety/worst outcome.
Changes of Pain Pressure Thresholds Anterior TemporalisChange from baseline in the scale at post-treatment and at 3 months laterAn algometer Wagner Force One FDX 50 was used, measured in kgf/cm\^2, with 0 representing the lowest pain pressure threshold/worst outcome and as higher pain pressure threshold/ as a better outcome.
Changes in the Trait AnxietyChange from baseline in the scale at post-treatment and at 3 months laterThe State-Trait Anxiety Index was used, lower values represent a better outcome. State and Trait were evaluated individually, range of scores for each subtest is 20-80, with 20 representing no trait anxiety/best outcome and 80 representing the highest level of trait anxiety/worst outcome.
Changes in the Trait DepressionChange from baseline in the scale at post-treatment and at 3 months laterThe State-Trait Depression Inventory was used, lower values represent a better outcome. State and Trait were evaluated individually, range of scores for each subtest is 20-80, with 20 representing no Trait Depression/best outcome and 80 representing the highest level of Trait Depression/worst outcome
Changes of Pain Pressure Thresholds Upper TrapeziusChange from baseline in the scale at post-treatment and at 3 months laterAn algometer Wagner Force One FDX 50 was used, measured in kgf/cm\^2, with 0 representing the lowest pain pressure threshold/worst outcome and as higher pain pressure threshold/ as a better outcome.
Changes of Pain Pressure Thresholds Sternal SternocleidomastoidChange from baseline in the scale at post-treatment and at 3 months laterAn algometer Wagner Force One FDX 50 was used, measured in kgf/cm\^2, with 0 representing the lowest pain pressure threshold/worst outcome and as higher pain pressure threshold/ as a better outcome.
Changes of Pain Pressure Thresholds Superficial MasseterChange from baseline in the scale at post-treatment and at 3 months laterAn algometer Wagner Force One FDX 50 was used, measured in kgf/cm\^2, with 0 representing the lowest pain pressure threshold/worst outcome and as higher pain pressure threshold/ as a better outcome.
Changes in the State DepressionChange from baseline in the scale at post-treatment and at 3 months laterThe State-Trait Depression Inventory was used, lower values represent a better outcome. State and Trait were evaluated individually, range of scores for each subtest is 20-80, with 20 representing no state depression/best outcome and 80 representing the highest level of state depression/worst outcome

Countries

Spain

Participant flow

Participants by arm

ArmCount
Control Group
A simulation of the pressure release technique, applying a soft pressure or contact in the same muscles sites or trigger points than in the intervention group. Sham: A simulated pressure release technique is applied around masticatory and neck muscles.
35
Intervention Group
The release pressure technique is applied in the trigger points of masticatory and neck muscles (upper trapezius, sternal and clavicular sternocleidomastoid, deep and superficial masseter, posterior, medium and anterior temporalis. Manual pressure release technique on trigger points.: A specific pressure is applied on trigger points of masticatory and neck muscles between pain pressure threshold and pain tolerance (7-8 visual analog scale).
37
Total72

Baseline characteristics

CharacteristicControl GroupIntervention GroupTotal
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
1 Participants6 Participants7 Participants
Age, Categorical
Between 18 and 65 years
34 Participants31 Participants65 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants0 Participants0 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
35 Participants37 Participants72 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants
Region of Enrollment
Spain
35 Participants37 Participants72 Participants
Sex: Female, Male
Female
31 Participants29 Participants60 Participants
Sex: Female, Male
Male
4 Participants8 Participants12 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 00 / 0
other
Total, other adverse events
0 / 00 / 0
serious
Total, serious adverse events
0 / 00 / 0

Outcome results

Primary

Changes of Perceived Pain Between Three Time Points (Baseline, Post-treatment, and 3 Months Later) and Between Groups (Sham Simulation and Pressure Release Technique)

The Visual Analogue Scale (0-10) was used, 0 representing no pain/better outcome, and 10 representing unbearable pain/worst outcome. the clinical minimum relevance outcome is at least a change of 1.2 points in the scale.

Time frame: Change from baseline in the scale at post-treatment and at 3 months later

ArmMeasureGroupValue (MEAN)Dispersion
Sham Simulation GROUPChanges of Perceived Pain Between Three Time Points (Baseline, Post-treatment, and 3 Months Later) and Between Groups (Sham Simulation and Pressure Release Technique)value at post-treatment minus value at baseline-1.03 units on a scaleStandard Deviation 0.82
Sham Simulation GROUPChanges of Perceived Pain Between Three Time Points (Baseline, Post-treatment, and 3 Months Later) and Between Groups (Sham Simulation and Pressure Release Technique)value at 3 months later minus value at baseline-0.77 units on a scaleStandard Deviation 0.88
Sham Simulation GROUPChanges of Perceived Pain Between Three Time Points (Baseline, Post-treatment, and 3 Months Later) and Between Groups (Sham Simulation and Pressure Release Technique)value at 3 months later minus value at post-treatm0.26 units on a scaleStandard Deviation 0.12
Pressure Release Technique GROUPChanges of Perceived Pain Between Three Time Points (Baseline, Post-treatment, and 3 Months Later) and Between Groups (Sham Simulation and Pressure Release Technique)value at post-treatment minus value at baseline-2.30 units on a scaleStandard Deviation 1.16
Pressure Release Technique GROUPChanges of Perceived Pain Between Three Time Points (Baseline, Post-treatment, and 3 Months Later) and Between Groups (Sham Simulation and Pressure Release Technique)value at 3 months later minus value at baseline-2.84 units on a scaleStandard Deviation 1.94
Pressure Release Technique GROUPChanges of Perceived Pain Between Three Time Points (Baseline, Post-treatment, and 3 Months Later) and Between Groups (Sham Simulation and Pressure Release Technique)value at 3 months later minus value at post-treatm-0.54 units on a scaleStandard Deviation 0.31
p-value: <0.001t-test, 2 sided
p-value: <0.001t-test, 2 sided
Secondary

Changes in the Catastrophizing

The Pain Catastrophizing Scale was used (0-52), with 0 representing no catastrophizing/best outcome and 52 representing the highest level of catastrophizing/worst outcome.

Time frame: Change from baseline in the scale at post-treatment and at 3 months later

ArmMeasureGroupValue (MEAN)Dispersion
Sham Simulation GROUPChanges in the Catastrophizingvalue at post-treatment minus value at baseline2.14 units on a scaleStandard Deviation 3.4
Sham Simulation GROUPChanges in the Catastrophizingvalue at 3 months later minus value at baseline0.80 units on a scaleStandard Deviation 3.53
Sham Simulation GROUPChanges in the Catastrophizingvalue at 3 months later minus value at post-treatm-1.34 units on a scaleStandard Deviation 3.2
Pressure Release Technique GROUPChanges in the Catastrophizingvalue at 3 months later minus value at baseline9.84 units on a scaleStandard Deviation 7.5
Pressure Release Technique GROUPChanges in the Catastrophizingvalue at post-treatment minus value at baseline9.92 units on a scaleStandard Deviation 7.68
Pressure Release Technique GROUPChanges in the Catastrophizingvalue at 3 months later minus value at post-treatm-0.08 units on a scaleStandard Deviation 4.67
Secondary

Changes in the Kinesiophobia

The Tampa Scale for Kinesiophobia -11 was used (0-44), with 0 representing no kinesiophobia/best outcome and 44 representing the highest level of kinesiphobia/worst outcome.

Time frame: Change from baseline in the scale at post-treatment and at 3 months later

ArmMeasureGroupValue (MEAN)Dispersion
Sham Simulation GROUPChanges in the Kinesiophobiavalue at post-treatment minus value at baseline1.80 units on a scaleStandard Deviation 2.65
Sham Simulation GROUPChanges in the Kinesiophobiavalue at 3 months later minus value at baseline1.83 units on a scaleStandard Deviation 3.3
Sham Simulation GROUPChanges in the Kinesiophobiavalue at 3 months later minus value at post-treatm0.03 units on a scaleStandard Deviation 2.63
Pressure Release Technique GROUPChanges in the Kinesiophobiavalue at post-treatment minus value at baseline5.24 units on a scaleStandard Deviation 4.49
Pressure Release Technique GROUPChanges in the Kinesiophobiavalue at 3 months later minus value at post-treatm0.68 units on a scaleStandard Deviation 2.43
Pressure Release Technique GROUPChanges in the Kinesiophobiavalue at 3 months later minus value at baseline5.92 units on a scaleStandard Deviation 4.94
Secondary

Changes in the Neck Disability

The Neck Disability Index was used (0-50), with 0 representing no disability neck/best outcome and 50 maximum disability neck/worst outcome.

Time frame: Change from baseline in the scale at post-treatment and at 3 months later

ArmMeasureGroupValue (MEAN)Dispersion
Sham Simulation GROUPChanges in the Neck Disabilityvalue at 3 months later minus value at baseline0.40 units on a scaleStandard Deviation 1.61
Sham Simulation GROUPChanges in the Neck Disabilityvalue at post-treatment minus value at baseline1.09 units on a scaleStandard Deviation 2.67
Sham Simulation GROUPChanges in the Neck Disabilityvalue at 3 months later minus value at post-treatm-0.69 units on a scaleStandard Deviation 2.48
Pressure Release Technique GROUPChanges in the Neck Disabilityvalue at post-treatment minus value at baseline5.78 units on a scaleStandard Deviation 5.45
Pressure Release Technique GROUPChanges in the Neck Disabilityvalue at 3 months later minus value at post-treatm-0.38 units on a scaleStandard Deviation 4.08
Pressure Release Technique GROUPChanges in the Neck Disabilityvalue at 3 months later minus value at baseline5.40 units on a scaleStandard Deviation 5.31
Secondary

Changes in the Range of the Opening of the Mouth

A calibrator Dentaurum München was used, measured in millimetres, with 0 representing no opening/worst outcome and as higher values/as a better outcome.

Time frame: Change from baseline in the scale at post-treatment and at 3 months later

ArmMeasureGroupValue (MEAN)Dispersion
Sham Simulation GROUPChanges in the Range of the Opening of the Mouthvalue at post-treatment minus value at baseline-0.26 mmStandard Deviation 5.81
Sham Simulation GROUPChanges in the Range of the Opening of the Mouthvalue at 3 months later minus value at baseline-1.09 mmStandard Deviation 6.59
Sham Simulation GROUPChanges in the Range of the Opening of the Mouthvalue at 3 months later minus value at post-treatm-0.83 mmStandard Deviation 1.81
Pressure Release Technique GROUPChanges in the Range of the Opening of the Mouthvalue at post-treatment minus value at baseline-4.27 mmStandard Deviation 6.39
Pressure Release Technique GROUPChanges in the Range of the Opening of the Mouthvalue at 3 months later minus value at baseline-5.22 mmStandard Deviation 6.68
Pressure Release Technique GROUPChanges in the Range of the Opening of the Mouthvalue at 3 months later minus value at post-treatm-0.95 mmStandard Deviation 2.7
Secondary

Changes in the State Anxiety

The State-Trait Anxiety Index was used, lower values represent a better outcome. State and Trait were evaluated individually, range of scores for each subtest is 20-80, with 20 representing no state anxiety/best outcome and 80 representing the highest level of state anxiety/worst outcome.

Time frame: Change from baseline in the scale at post-treatment and at 3 months later

ArmMeasureGroupValue (MEAN)Dispersion
Sham Simulation GROUPChanges in the State Anxietyvalue at post-treatment minus value at baseline0.30 units on a scaleStandard Deviation 0.93
Sham Simulation GROUPChanges in the State Anxietyvalue at 3 months later minus value at baseline0.22 units on a scaleStandard Deviation 0.82
Sham Simulation GROUPChanges in the State Anxietyvalue at 3 months later minus value at post-treatm-0.08 units on a scaleStandard Deviation 0.55
Pressure Release Technique GROUPChanges in the State Anxietyvalue at post-treatment minus value at baseline1.59 units on a scaleStandard Deviation 1.5
Pressure Release Technique GROUPChanges in the State Anxietyvalue at 3 months later minus value at baseline1.53 units on a scaleStandard Deviation 1.4
Pressure Release Technique GROUPChanges in the State Anxietyvalue at 3 months later minus value at post-treatm-0.05 units on a scaleStandard Deviation 1.09
Secondary

Changes in the State Depression

The State-Trait Depression Inventory was used, lower values represent a better outcome. State and Trait were evaluated individually, range of scores for each subtest is 20-80, with 20 representing no state depression/best outcome and 80 representing the highest level of state depression/worst outcome

Time frame: Change from baseline in the scale at post-treatment and at 3 months later

ArmMeasureGroupValue (MEAN)Dispersion
Sham Simulation GROUPChanges in the State Depressionvalue at post-treatment minus value at baseline0.25 units on a scaleStandard Deviation 0.68
Sham Simulation GROUPChanges in the State Depressionvalue at 3 months later minus value at baseline0.10 units on a scaleStandard Deviation 0.6
Sham Simulation GROUPChanges in the State Depressionvalue at 3 months later minus value at post-treatm-0.15 units on a scaleStandard Deviation 0.43
Pressure Release Technique GROUPChanges in the State Depressionvalue at post-treatment minus value at baseline0.74 units on a scaleStandard Deviation 0.74
Pressure Release Technique GROUPChanges in the State Depressionvalue at 3 months later minus value at baseline0.75 units on a scaleStandard Deviation 0.85
Pressure Release Technique GROUPChanges in the State Depressionvalue at 3 months later minus value at post-treatm0.01 units on a scaleStandard Deviation 0.5
p-value: <0.001t-test, 2 sided
p-value: <0.001t-test, 2 sided
Secondary

Changes in the Trait Anxiety

The State-Trait Anxiety Index was used, lower values represent a better outcome. State and Trait were evaluated individually, range of scores for each subtest is 20-80, with 20 representing no trait anxiety/best outcome and 80 representing the highest level of trait anxiety/worst outcome.

Time frame: Change from baseline in the scale at post-treatment and at 3 months later

ArmMeasureGroupValue (MEAN)Dispersion
Sham Simulation GROUPChanges in the Trait Anxietyvalue at post-treatment minus value at baseline-0.02 units on a scaleStandard Deviation 0.34
Sham Simulation GROUPChanges in the Trait Anxietyvalue at 3 months later minus value at baseline-0.22 units on a scaleStandard Deviation 0.67
Sham Simulation GROUPChanges in the Trait Anxietyvalue at 3 months later minus value at post-treatm-0.20 units on a scaleStandard Deviation 0.73
Pressure Release Technique GROUPChanges in the Trait Anxietyvalue at post-treatment minus value at baseline0.68 units on a scaleStandard Deviation 1.36
Pressure Release Technique GROUPChanges in the Trait Anxietyvalue at 3 months later minus value at post-treatm-0.09 units on a scaleStandard Deviation 0.79
Pressure Release Technique GROUPChanges in the Trait Anxietyvalue at 3 months later minus value at baseline0.59 units on a scaleStandard Deviation 1.26
Secondary

Changes in the Trait Depression

The State-Trait Depression Inventory was used, lower values represent a better outcome. State and Trait were evaluated individually, range of scores for each subtest is 20-80, with 20 representing no Trait Depression/best outcome and 80 representing the highest level of Trait Depression/worst outcome

Time frame: Change from baseline in the scale at post-treatment and at 3 months later

ArmMeasureGroupValue (MEAN)Dispersion
Sham Simulation GROUPChanges in the Trait Depressionvalue at post-treatment minus value at baseline0.15 units on a scaleStandard Deviation 0.4
Sham Simulation GROUPChanges in the Trait Depressionvalue at 3 months later minus value at baseline0.07 units on a scaleStandard Deviation 0.25
Sham Simulation GROUPChanges in the Trait Depressionvalue at 3 months later minus value at post-treatm-0.07 units on a scaleStandard Deviation 0.3
Pressure Release Technique GROUPChanges in the Trait Depressionvalue at post-treatment minus value at baseline0.30 units on a scaleStandard Deviation 0.6
Pressure Release Technique GROUPChanges in the Trait Depressionvalue at 3 months later minus value at baseline0.36 units on a scaleStandard Deviation 0.61
Pressure Release Technique GROUPChanges in the Trait Depressionvalue at 3 months later minus value at post-treatm0.06 units on a scaleStandard Deviation 0.76
Secondary

Changes of Pain Pressure Thresholds Anterior Temporalis

An algometer Wagner Force One FDX 50 was used, measured in kgf/cm\^2, with 0 representing the lowest pain pressure threshold/worst outcome and as higher pain pressure threshold/ as a better outcome.

Time frame: Change from baseline in the scale at post-treatment and at 3 months later

ArmMeasureGroupValue (MEAN)Dispersion
Sham Simulation GROUPChanges of Pain Pressure Thresholds Anterior Temporalisvalue at post-treatment minus value at baseline-0.21 kgf/cm^2Standard Deviation 0.36
Sham Simulation GROUPChanges of Pain Pressure Thresholds Anterior Temporalisvalue at 3 months later minus value at baseline-0.12 kgf/cm^2Standard Deviation 0.24
Sham Simulation GROUPChanges of Pain Pressure Thresholds Anterior Temporalisvalue at 3 months later minus value at post-treatm0.09 kgf/cm^2Standard Deviation 0.38
Pressure Release Technique GROUPChanges of Pain Pressure Thresholds Anterior Temporalisvalue at post-treatment minus value at baseline-0.48 kgf/cm^2Standard Deviation 0.81
Pressure Release Technique GROUPChanges of Pain Pressure Thresholds Anterior Temporalisvalue at 3 months later minus value at baseline-0.40 kgf/cm^2Standard Deviation 0.69
Pressure Release Technique GROUPChanges of Pain Pressure Thresholds Anterior Temporalisvalue at 3 months later minus value at post-treatm0.08 kgf/cm^2Standard Deviation 0.53
Secondary

Changes of Pain Pressure Thresholds Sternal Sternocleidomastoid

An algometer Wagner Force One FDX 50 was used, measured in kgf/cm\^2, with 0 representing the lowest pain pressure threshold/worst outcome and as higher pain pressure threshold/ as a better outcome.

Time frame: Change from baseline in the scale at post-treatment and at 3 months later

ArmMeasureGroupValue (MEAN)Dispersion
Sham Simulation GROUPChanges of Pain Pressure Thresholds Sternal Sternocleidomastoidvalue at post-treatment minus value at baseline-0.14 kgf/cm^2Standard Deviation 0.33
Sham Simulation GROUPChanges of Pain Pressure Thresholds Sternal Sternocleidomastoidvalue at 3 months later minus value at baseline-0.08 kgf/cm^2Standard Deviation 0.21
Sham Simulation GROUPChanges of Pain Pressure Thresholds Sternal Sternocleidomastoidvalue at 3 months later minus value at post-treatm0.06 kgf/cm^2Standard Deviation 0.26
Pressure Release Technique GROUPChanges of Pain Pressure Thresholds Sternal Sternocleidomastoidvalue at post-treatment minus value at baseline-0.22 kgf/cm^2Standard Deviation 0.48
Pressure Release Technique GROUPChanges of Pain Pressure Thresholds Sternal Sternocleidomastoidvalue at 3 months later minus value at baseline-0.33 kgf/cm^2Standard Deviation 0.7
Pressure Release Technique GROUPChanges of Pain Pressure Thresholds Sternal Sternocleidomastoidvalue at 3 months later minus value at post-treatm-0.11 kgf/cm^2Standard Deviation 0.64
Secondary

Changes of Pain Pressure Thresholds Superficial Masseter

An algometer Wagner Force One FDX 50 was used, measured in kgf/cm\^2, with 0 representing the lowest pain pressure threshold/worst outcome and as higher pain pressure threshold/ as a better outcome.

Time frame: Change from baseline in the scale at post-treatment and at 3 months later

ArmMeasureGroupValue (MEAN)Dispersion
Sham Simulation GROUPChanges of Pain Pressure Thresholds Superficial Massetervalue at 3 months later minus value at post-treatm0.02 kgf/cm^2Standard Deviation 0.22
Sham Simulation GROUPChanges of Pain Pressure Thresholds Superficial Massetervalue at post-treatment minus value at baseline-0.23 kgf/cm^2Standard Deviation 0.37
Sham Simulation GROUPChanges of Pain Pressure Thresholds Superficial Massetervalue at 3 months later minus value at baseline-0.21 kgf/cm^2Standard Deviation 0.44
Pressure Release Technique GROUPChanges of Pain Pressure Thresholds Superficial Massetervalue at post-treatment minus value at baseline-0.28 kgf/cm^2Standard Deviation 0.66
Pressure Release Technique GROUPChanges of Pain Pressure Thresholds Superficial Massetervalue at 3 months later minus value at baseline-0.36 kgf/cm^2Standard Deviation 0.59
Pressure Release Technique GROUPChanges of Pain Pressure Thresholds Superficial Massetervalue at 3 months later minus value at post-treatm-0.09 kgf/cm^2Standard Deviation 0.54
Secondary

Changes of Pain Pressure Thresholds Upper Trapezius

An algometer Wagner Force One FDX 50 was used, measured in kgf/cm\^2, with 0 representing the lowest pain pressure threshold/worst outcome and as higher pain pressure threshold/ as a better outcome.

Time frame: Change from baseline in the scale at post-treatment and at 3 months later

ArmMeasureGroupValue (MEAN)Dispersion
Sham Simulation GROUPChanges of Pain Pressure Thresholds Upper Trapeziusvalue at post-treatment minus value at baseline-0.21 kgf/cm^2Standard Deviation 0.36
Sham Simulation GROUPChanges of Pain Pressure Thresholds Upper Trapeziusvalue at 3 months later minus value at baseline-0.12 kgf/cm^2Standard Deviation 0.24
Sham Simulation GROUPChanges of Pain Pressure Thresholds Upper Trapeziusvalue at 3 months later minus value at post-treatm0.09 kgf/cm^2Standard Deviation 0.38
Pressure Release Technique GROUPChanges of Pain Pressure Thresholds Upper Trapeziusvalue at post-treatment minus value at baseline-0.48 kgf/cm^2Standard Deviation 0.81
Pressure Release Technique GROUPChanges of Pain Pressure Thresholds Upper Trapeziusvalue at 3 months later minus value at baseline-0.40 kgf/cm^2Standard Deviation 0.69
Pressure Release Technique GROUPChanges of Pain Pressure Thresholds Upper Trapeziusvalue at 3 months later minus value at post-treatm0.08 kgf/cm^2Standard Deviation 0.53

Source: ClinicalTrials.gov · Data processed: Feb 9, 2026