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Temporomandibular Joint DisordersPhase 1/2NCT00899717

Occlusal Adjustment as Treatment for Chronic Orofacial Pain

A Phase 1/2 study testing Occlusal adjustment in people with Temporomandibular Joint Disorders and Orofacial Pain, run by University of Santiago de Compostela at 2 sites in Spain.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The purpose of this study is to determine whether occlusal adjustment by selective grinding and/or occlusal addition is an effective treatment of chronic temporomandibular joint disorders. Read more about this study

Who is it for?
Ages 18 to 65 years
What is being tested?
Occlusal adjustment
Type of treatment
Surgery or procedure
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
21 participants
Where
2 sitesSpain
Study dates
May 2009to Apr 2010
Phase
Phase 1/2
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 65 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • People suitable for inclusion in the study are full dentate patients
  • Aged between 18 and 65 years
  • Patients with chronic TMD pain (and usually with associated limited mouth opening) for whom occlusal adjustment could achieve normal occlusion, both static and functionally equilibrated

Who cannot join

  • Pregnancy
  • Trauma
  • Previous TMJ surgery
  • Patient refusal to consent to participate in the study or significant concerns about the study
  • Limited collaboration
  • Concurrent active treatment with orthodontics, and active periodontal disease

Trial locations and contacts

2 sites in 1 country.

Spain2 sites
  • Complejo Hospitalario Universitario de La Coruña

    A Coruña, La Coruña, 15006

  • Facultad de Medicina y Odontología

    Santiago de Compostela, La Coruña, 15782

Other trials in Spain

About this study

Official title: Basis for an Etiological Diagnosis and Treatment of the Chronic TMD-pain: RCT Study

The purpose of this study is to determine whether occlusal adjustment by selective grinding and/or occlusal addition is an effective treatment of chronic temporomandibular joint disorders.

Read the detailed description

Temporomandibular disorders (TMD) are very common disorders in daily dentistry and oral and maxillofacial practice. The key symptoms are jaw joint pain and limited mouth opening. Other than trauma, the causes remain unknown; consequently, there are no treatments based on specific etiologies. In our experience, patients can usually receive beneficial occlusal adjustments if these are carefully planned and performed in two steps: (1) elimination of premature contacts, which reduces loads in the temporomandibular joints, and (2) individualized remodeling of lateral anterior guidance to facilitate unilateral alternate chewing. The study will use stratified blocking randomization to blindly assign patients to the real or placebo treatment groups in order to evaluate the null hypothesis (H0) that "Occlusal adjustment of sufficient quality has no effect on chronic pain and/or limited mouth opening in TMD patients."

Being tested
Occlusal adjustment, Placebo occlusal adjustment
Keywords
Temporomandibular Joint Disorders (TMD), Orofacial pain, Limited mouth opening, Craniomandibular dysfunction syndrome, Axiography, Gnatography, Preferred chewing side, Occlusal adjustment, Selective grinding, Handedness, Bruxism, TMD, Costen's Syndrome, Myofascial pain, TMD treatment, Pain
Medical subject headings
Temporomandibular Joint Disorders, Facial Pain, Bruxism, Temporomandibular Joint Dysfunction Syndrome, Pain

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Occlusal adjustmentProcedure or surgery

    Also called Selective grinding, Occlusal reshaping, Occlusal equilibration, Occlusal therapy

    modification of occlusal surfaces

  • Placebo occlusal adjustmentProcedure or surgery

    Simulated modification of occlusal surfaces

Study groups in NCT00899717
Study groupRoleWhat they receive
AExperimentalNot described
Receives: Procedure: Occlusal adjustment
BPlacebo comparatorNot described
Receives: Procedure: Placebo occlusal adjustment

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Visual Analogic Scale for Pain Intensity (0-10)

    The primary outcome was self-reported pain intensity on a 0 to 10 cm visual analog scale considering the temporomandibular disorder side, being 0="No pain" and 10="Worst imaginable pain"

    Measured: Baseline, immediately after therapy, 3 months and 6 months after therapy

Secondary outcomes (4)
  1. Symptom Checklist-90-Revised (SCL-90-R®)

    Scale name: Global Severity Index. Scale graded from 0 to 4. Scores increases as the symptoms severity increases.

    Measured: Before and 6 months after therapy

  2. Preferred Chewing Side

    The change in the habitual chewing side of each participant across the study

    Measured: Before and 6 months after therapy

  3. Maximum Mouth Opening (mm)

    Maximum voluntary unassisted mouth opening

    Measured: 6 months (before and after therapy) including 4 assessment points: pre-treatment, post-treatment, 3- and 6-month follow up

  4. Condylar Path Angles

    Parasagittal plane condylar path angles tracings in relation to the Frankfort line were made following the Gysi extraoral method.

    Measured: Baseline

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted12 May 2009 (estimated)
  2. Study startMay 2009
  3. Primary completionJun 2009
  4. Study completionApr 2010

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1/2
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Triple blind
Who is masked
Participant, Investigator, Outcomes assessor
Enrolment
21 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00899717
Sponsor's protocol ID
2009/017
Status last verified
Jul 2013
First submitted
11 May 2009
Last updated
26 Jul 2013
Data monitoring committee
Yes

Questions about this trial

What is this clinical trial studying?

A Phase 1/2 study testing Occlusal adjustment in people with Temporomandibular Joint Disorders and Orofacial Pain, run by University of Santiago de Compostela at 2 sites in Spain.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 6 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 26 Jul 2013. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 2 sites in Spain. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this combined phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 16 Jul 2013). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Visual Analogic Scale for Pain Intensity (0-10) (time frame: Baseline, immediately after therapy, 3 months and 6 months after therapy). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 26 Jul 2013.

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