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An Follow-up Study of Occlusal Adjustment for Orofacial Pain

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ClinicalTrials.gov Identifier: NCT02856906
Recruitment Status : Recruiting
First Posted : August 5, 2016
Last Update Posted : February 13, 2018
Sponsor:
Information provided by (Responsible Party):
Meiqing Wang, Fourth Military Medical University

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.

Condition or disease Intervention/treatment Phase
Orofacial Pain Trigeminal Neuralgia Other: occlusal adjustment Not Applicable

Detailed Description:
  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.

Study Type : Interventional  (Clinical Trial)
Estimated Enrollment : 30 participants
Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: An Follow-up Study of Occlusal Adjustment for Orofacial Pain
Study Start Date : August 2016
Estimated Primary Completion Date : December 2018
Estimated Study Completion Date : December 2018

Resource links provided by the National Library of Medicine


Arm Intervention/treatment
Experimental: Occlusal adjustment group
Patients in this group will receive treatment of occlusal adjustment based on the clinical and lab examination results.
Other: occlusal adjustment



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

Secondary Outcome Measures :
  1. Pain reduction assessed on the Visual Analog Scale(VAS) [ Time Frame: 1-, 12-, 24-weeks after the treatment ]
  2. Attack frequency [ Time Frame: 1-,4-,12-,24-weeks after the treatment ]
    Times of attack per day stand for attack frequency

  3. 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 .

  4. The dosage of medicine [ Time Frame: 1-, 4-, 12-, 24-weeks after the treatment. ]
    Grams per day of patients take the medicine .


Other Outcome Measures:
  1. Number of break-over point of occlusal imprints. [ Time Frame: 4-weeks after treatment ]
  2. Number of sub-break-over point of occlusal imprints. [ Time Frame: 4-weeks after treatment ]
  3. Area of break-over point of occlusal imprints(cm2) . [ Time Frame: 4-weeks after treatment ]
    Area of break-over point of occlusal imprints(cm2) is computed by software.

  4. Area of sub-break-over point of occlusal imprints(cm2). [ Time Frame: 4-weeks after treatment ]
    Area of sub-break-over point of occlusal imprints(cm2) is computed by software.

  5. Occlusal force ratio(%)in position (ICP)- maximum voluntary clenching (MVC). [ Time Frame: 4-weeks after the treatment ]
    The T-scan analysis system indicates the value of left and right side occlusal force ratio(%)in position (ICP)- maximum voluntary clenching (MVC).

  6. Number of occlusal contact in T-Scan system in ICP-MVC [ Time Frame: 4-weeks after the treatment ]
    The T-scan analysis system indicates the number of left and right side occlusal contact in ICP-MVC.

  7. Anterior Temporalis (TA) muscles' surface electromyographic(SEMG)(uV) in ICP-MVC. [ Time Frame: 4-weeks after the treatment ]
    The system indicates left and right side Anterior Temporalis (TA) muscles' surface electromyographic(SEMG) (uV)in ICP-MVC.

  8. Masseter (MM) surface electromyographic(SEMG)(uV)in ICP-MVC. [ Time Frame: 4-weeks after the treatment ]
    The system indicates right and left side Masseter (MM) surface electromyographic(SEMG)(uV)in ICP-MVC.

  9. Occlusal force ratio(%)of dental arch in lateral cuspal to cuspal. [ Time Frame: 4-weeks after treatment ]
    T-scan analysis system indicates the value of working and non-working side dental arch occlusal force ratio(%) in lateral cuspal to cuspal.

  10. Number of occlusal contact in lateral cuspal to cuspal [ Time Frame: 4-weeks after treatment ]
    T-scan analysis system indicates number of occlusal contact of working and non-working side in lateral cuspal to cuspal.

  11. Anterior Temporalis (TA) muscles' surface electromyographic(SEMG)(uV) in lateral cuspal to cuspal. [ Time Frame: 4-weeks after treatment ]
    The system indicates working and non-working side Anterior Temporalis (TA) muscles' surface electromyographic(SEMG)(uV)in lateral cuspal to cuspal.

  12. Masseter (MM) surface electromyographic(SEMG)(uV)in lateral cuspal to cuspal. [ Time Frame: 4-weeks after treatment ]
    The system indicates non-working and working side Masseter (MM) surface electromyographic(SEMG)(uV)in lateral cuspal to cuspal.



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Ages Eligible for Study:   18 Years and older   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Criteria

Inclusion Criteria:

  • The patients claim orofacial pain. The pain has been treated but not relieved by medication, surgery, root canal therapy, even teeth extracting, or the pain relieve effect went down for a period. The patients also match the following item 1 or 2:
  • Item 1: disorder characterized by recurrent unilateral brief electric shock-like pains, abrupt in onset and termination, limited to the distribution of one or more divisions of the trigeminal nerve and triggered by innocuous stimuli. It may develop without apparent cause or be a result of another diagnosed disorder. There may or may not be, additionally, persistent background facial pain of moderate intensity.They fulfilled criteria A-E
  • At least three attacks of unilateral facial pain fulfilling criteria B and C
  • Occurring in one or more divisions of the trigeminal nerve, with no radiation beyond the trigeminal distribution
  • Pain has at least three of the following four characteristics:

    • recurring in paroxysmal attacks lasting from a fraction of a second to 2 minutes.
    • severe intensity.
    • electric shock-like, shooting, stabbing or sharp in quality.
    • precipitated by innocuous stimuli to the affected side of the face.
  • No clinically evident neurological deficit
  • Not better accounted for by another the International Classification of Headache Disorders 3rd edition diagnosis.
  • Item 2 Persistent facial and/or oral pain, with varying presentations but recurring daily for more than 2 hours per day over more than 3 months, in the absence of clinical neurological deficit.They fulfilled criteria A-E
  • Facial and/or oral pain fulfilling criteria B and C
  • Recurring daily for >2 hours per day for >3 months
  • Pain has both of the following characteristics: 1. poorly localized, and not following the distribution of a peripheral nerve 2. Dull, aching or nagging quality
  • Clinical neurological examination is normal
  • A dental cause has been excluded by appropriate investigations
  • Not better accounted for by another the International Classification of Headache Disorders 3rd edition diagnosis

Exclusion Criteria:

  • Head and facial trauma; orofacial and/or intracranial space occupying lesion indicated by craniofacial CT ; pain caused by sinusitis and acute pulpitis, periapical periodontitis and periodontitis disease; no occlusal abnormalities and occlusion treatment indications through a series of occlusal examination; children (younger than 18 years old) and pregnant women.

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT02856906


Contacts
Contact: Shaoxiong Guo, M.D 8615902969892 xiongshao1989@163.com

Locations
China, Shaanxi
State Key Laboratory of Military Stomatology, Department of Oral Anatomy and Physiology and TMD,School of Stomatology, The Fourth Military Medical University, Xi 'an, China. Recruiting
Xi'an, Shaanxi, China, 710032
Contact: Shaoxiong Guo, M.D    8615902969892    xiongshao1989@163.com   
Sponsors and Collaborators
Meiqing Wang
Investigators
Study Chair: Shaoxiong Guo, M.D State Key Laboratory of Military Stomatology, Department of Oral Anatomy and Physiology and TMD,School of Stomatology, The Fourth Military Medical University, Xi 'an, China.

Responsible Party: Meiqing Wang, Professor, State Key Laboratory of Military Stomatology, Department of Oral Anatomy and Physiology, School of Stomatology, Fourth Military Medical University
ClinicalTrials.gov Identifier: NCT02856906     History of Changes
Other Study ID Numbers: Department of Oral Anatomy
First Posted: August 5, 2016    Key Record Dates
Last Update Posted: February 13, 2018
Last Verified: February 2018
Individual Participant Data (IPD) Sharing Statement:
Plan to Share IPD: No

Keywords provided by Meiqing Wang, Fourth Military Medical University:
Orofacial Pain
Electromyography
dental occlusion

Additional relevant MeSH terms:
Neuralgia
Trigeminal Neuralgia
Trigeminal Nerve Diseases
Facial Neuralgia
Facial Pain
Pain
Neurologic Manifestations
Nervous System Diseases
Peripheral Nervous System Diseases
Neuromuscular Diseases
Signs and Symptoms
Facial Nerve Diseases
Mouth Diseases
Stomatognathic Diseases
Cranial Nerve Diseases
Salicylic Acid
Anti-Infective Agents
Antifungal Agents
Keratolytic Agents
Dermatologic Agents