Clinical Trial: An Follow-up Study of Occlusal Adjustment for Orofacial Pain

Study Status: Recruiting
Recruit Status: Recruiting
Study Type: Interventional

Official Title: An Follow-up Study of Occlusal Adjustment for Orofacial Pain

Brief Summary: The purpose of this study is to determine whether what kind of occlusion are related the orofacial pain under investigation, and whether occlusal adjustment have an effect in relief of this kind of orofacial pain.

Detailed Summary:

  1. T-scan analysis system is used to record the occlusal contact relationships. And at same time, Electromyographic recording system is used to record the Masseter (MM) and Anterior Temporalis (TA) muscles' surface electromyographic (SEMG) in the two time points: before the treatment and 4-weeks follow-up after treatment.

    After recording, several parameters is taken to indicate the occlusal changes when researchers set the T-Scan occlusal parameters as 100% intercuspal position (ICP) maximum voluntary clenching (MVC), 75% ICP-MVC, 50% ICP-MVC, 25% ICP-MVC, and the number of occlusal contact and the values of the the Masseter (MM) and Anterior Temporalis (TA) muscles' surface electromyographic (SEMG) values is acquired by the software in the screen.

  2. Occlusal imprints which indicates the their occlusal relationships is made by researchers when the volunteers ICP clenching in the two time points: before the treatment and 4-weeks follow-up after treatment.

    Break-over and the sub-break-over point of the occlusal imprints is amplified by software. The investigators compute the number and area about that.

  3. The investigators also recorded frequency of attack and score of visual analogue scale (VAS), the dosage of drug, and short form-McGill-2 in the follow-ups time frame: immediately after the first treatment, 1-, 4-, 12- and 24-weeks after treatment.

Sponsor: Meiqing Wang

Current Primary Outcome: Pain reduction assessed on the Visual Analog Scale（VAS） [ Time Frame: 4-weeks after the treatment ]

Original Primary Outcome: Same as current

Current Secondary Outcome:

  • Pain reduction assessed on the Visual Analog Scale（VAS） [ Time Frame: 1-, 12-, 24-weeks after the treatment ]
  • Attack frequency [ Time Frame: 1-,4-,12-,24-weeks after the treatment ]
    Times of attack per day stand for attack frequency
  • Pain reduction assessed on the short form-McGill-2 [ Time Frame: 1-,4-,12-,24-weeks after the treatment ]
    Pain' levels reduction assessed on score of short form-McGill-2 .
  • The dosage of medicine [ Time Frame: 1-, 4-, 12-, 24-weeks after the treatment. ]
    Grams per day of patients take the medicine .


Original Secondary Outcome: Same as current

Information By: Fourth Military Medical University

Dates:
Date Received: July 15, 2016
Date Started: August 2016
Date Completion: December 2017
Last Updated: August 2, 2016
Last Verified: August 2016