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A Comparative Study on the Impact of Trigger Points Injection of Platelet Rich Plasma Versus Botulinum Toxin on the Relief of Jaw Muscles Myofascial Pain

A Comparative Study on the Impact of Trigger Points Injection of Platelet Rich Plasma Versus Botulinum Toxin a on the Relief of Jaw Muscles Myofascial Pain

Status
Active, not recruiting
Phases
Phase 2Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06814535
Enrollment
60
Registered
2025-02-07
Start date
2024-06-01
Completion date
2025-03-31
Last updated
2025-03-11

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

Conditions

Patients with Jaw Muscles Myofascial Pain

Brief summary

This study aims at comparing the effect of trigger points injection of platelet rich plasma and botulinum toxin a on the relief of jaw muscles Myofascial pain . The 1st group includes 20 patients who are supposed to receive 5 units of botulinum toxin A per trigger point in masseter and/or temporalis muscles. The 2nd group will receive ,5 ml of PRP per trigger point in masseter and/or temporalis muscles. The 3rd group will receive .5 ml of physiologic saline per each trigger point in masseter and/or temporalis muscles. The 1st follow up session will be after 1 week then 1 month then 3 months . The patients are advised to limit excessive Mouth opening, yawning or singing. And when pain episode , theta re advised to take only paracetamol as analgesic drug . At the follow up sessions ، measuring the interincisal opening , pressure pain threshold using algometer , VAS to measure the intensity of pain , Likert scale , current pain intensity, worst pain intensity and the need to take analgesics in Numbers. Then comparing the results of these groups to end in rejecting the null hypothesis which says there's an equivalence between the 3 types of injected solutions or accepting it .

Interventions

Botulinum toxin type A

DRUGPlatelet rich plasma

Plasma that contains concentrated platelets

Physiological saline .9 %

Sponsors

Cairo University
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
SINGLE (Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to 60 Years
Healthy volunteers
Yes

Inclusion criteria

* patient with myofascial trigger points in masseter or temporalis previously ----\*identified by manual palpation. * 18 years or More Willingness to follow instructions.

Exclusion criteria

* therapeutic intervention for myofascial pain in the last view months such as taking medications for pain control or wearing an occlusal splint. * Clinical conditions as pregnancy * Medical problems that will interfere with the procedure as bleeding disorders. * Cognitive impairment or present inadequate cooperation.

Design outcomes

Primary

MeasureTime frameDescription
Pressure pain threshold3 monthsThe amount of force per kilogram needed to induce pain in patients with myofascial pain at the trigger point.. Will be measured using the algometer which presses on the trigger point to induce pain by force measured in kilograms/cm2 If the reading increased among the treatment visits , this means better outcome and decreased pain intensity with effectiveness of the treatment
Current pain intensity3 monthsThe amount of pain on VAS at the time of examination from 0-10 With 0 no pain which increases to reach 10 ( the highest pain intensity).. Decrease in pain intensity means better outcome
Worst pain intensity3 monthsThe worst pain the patient had suffered from on the previous duration. Using visual analogue scale from (0-10) with 0 least pain and 10 worst pain . Decrease in pain intensity means better outcome

Secondary

MeasureTime frameDescription
Inter incisal opening3 monthsThe measurement in millimeters of the distance between the incisal edge of the upper incisor and the lower incisor Using calibers to measure the effect of myofascial pain on decreasing muscle spasm and the effectiveness of the treatment by time. Increased degree of mouth opening meaning the muscles had relaxed and trigger points released
Patient satisfaction3 monthsWill be measured by Likert scale by faces to indicate whether the treatment was satisfactory to the patient or not and to which degree .it affected their quality of life
The need for analgesics3 monthsThe patient will count how many Paracetamol tabs he took at the time from the last visit till now. With decreased amount of analgesics taken between the visits means better outcome

Countries

Egypt

Outcome results

None listed

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