An Electromyography Study Comparing the Impact of Using RMEs on Muscle Activity Among Growing Orthodontic Patients

NCT ID: NCT02752347

Last Updated: 2017-10-09

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Clinical Phase

NA

Total Enrollment

50 participants

Study Classification

INTERVENTIONAL

Study Start Date

2016-04-30

Study Completion Date

2017-12-30

Brief Summary

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Compare the impact of using rapid maxillary expanders on masticatory muscle activities (Masseter and Anterior Temporalis muscles) among different posterior cross-bite patient (unilateral, bilateral) as well as compare the cross-bite side and non-cross-bite sides of the same preadolescent unilateral crossbite patient before the expansion and after one month of the completion treatment period using surface electromyography device.

Detailed Description

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Compare the impact of using rapid maxillary expanders on masticatory muscle activities (Masseter and Anterior Temporalis muscles) between the cross-bite side and non-cross-bite sides of the same preadolescent orthodontic patient before the expansion and after one month of the completion treatment period.

Two channels surface Electromyography sEMG (BioRadio), will be position to record the activity of anterior temporal (AT) and masseter (MM) muscles in three different statuses:

* Rest → patients will instruct to not bite on his/her teeth.
* Clench → patients will instruct to made a maximum voluntary clench on cotton rolls positioned around the first molar, for 5 sec "the cotton clench", and a maximum voluntary clench without the interposed rolls for 5 sec "the "clench".

\* This procedure followed the Sforza et al. protocol.
* During function "mastication" → The patients will instruct to chew on a chewing gum for 20 sec (20 continuous masticatory cycles).

Examination frequency:

The patients will be examined two times as follow:

Test 1: Immediately before rapid maxillary expanders cementation, Test 2: 5 months later (1 month after the retention phase).

the same procedure will be done on 35 patients (control group)

Conditions

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Malocclusion

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

DIAGNOSTIC

Blinding Strategy

SINGLE

Investigators

Study Groups

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unilateral crossbite

unilateral crossbite patients with constricted maxilla, going to be treated by rapid maxillary expanders the surface Electromyography (surface EMG device) device will be used to examine the muscle activities before and after expansion

Group Type EXPERIMENTAL

Surface EMG device

Intervention Type DEVICE

measuring the muscles activity using surface EMG device

control

the surface Electromyography (surface EMG device) device will be used to examine the muscle activities on normal patients

Group Type NO_INTERVENTION

No interventions assigned to this group

Bilateral crossbite

Bilateral crossbite patients with constricted maxilla, going to be treated by rapid maxillary expanders the surface Electromyography (surface EMG device) device will be used to examine the muscle activities before and after expansion

Group Type EXPERIMENTAL

Surface EMG device

Intervention Type DEVICE

measuring the muscles activity using surface EMG device

Interventions

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Surface EMG device

measuring the muscles activity using surface EMG device

Intervention Type DEVICE

Other Intervention Names

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BioRadio EMG Device

Eligibility Criteria

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Inclusion Criteria

1. Uni-lateral/ or bilateral posterior cross-bite.
2. Patients with erupted permanent maxillary and mandibular first molars.
3. Will be treated by rapid maxillary expanders, (the appliance planning to be worn for approximately 5 months).
4. Age ranged from 9 to 12.
5. Males and females.
6. Not under any medications.
7. Skeletal Class I or Class II (based on ANB angle, convexity, and Wits appraisal).
8. No active caries.
9. Healthy periodontal tissues.
10. Subjects with no signs of TMD or condylar problems.

Exclusion Criteria

1. History of any functional appliance treatment.
2. Oral, systemic disease or any syndromes.
3. Patients under any medications.

6\. Patients with symptoms of Temporomandibular disorders. 4. Neuropathic conditions. 5. Open and deep-bite.
Minimum Eligible Age

9 Years

Maximum Eligible Age

15 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Riyadh Colleges of Dentistry and Pharmacy

OTHER

Sponsor Role lead

Responsible Party

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Nancy Ajwa

Resident

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Hezekiah A Mosadomi, DMD

Role: STUDY_CHAIR

Riyadh Colleges of Dentistry and Pharmacy

Locations

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Riyadh Colleges of Dentistry and Pharmacy

Riyadh, , Saudi Arabia

Site Status RECRUITING

Countries

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Saudi Arabia

Central Contacts

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Nancy Ajwa, Residant

Role: CONTACT

Phone: 0554804564

Email: [email protected]

Facility Contacts

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Hezekiah mosadomi, Prof

Role: primary

Other Identifiers

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FPGRP/43534001/14

Identifier Type: -

Identifier Source: org_study_id