NCT04588636

Brief Summary

The objective of this study was to compare the clinical effectiveness of personalized thermoformed occlusal splints together with behavioral and self-care therapy in the management of myalgia of the masticatory muscles. A controlled clinical trial was carried out with a total of 46 subjects diagnosed with myalgia according to the diagnostic criteria for temporomandibular disorders (DC / TMD). All subjects were treated with behavioral and self-care therapy (BST) at the beginning of the study, and were then randomized into 4 groups: behavioral and self-care control group; rigid occlusal splint group; soft occlusal splint group and non-occlusive splint group. Follow-ups were carried out at 2, 6 and 10 weeks, where it was evaluated: pain in the masticatory muscles, mandibular range of motion, mandibular functional limitation and occlusal discomfort.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
46

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Oct 2017

Shorter than P25 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

October 16, 2017

Completed
3 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 16, 2018

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

January 16, 2018

Completed
2.7 years until next milestone

First Submitted

Initial submission to the registry

October 5, 2020

Completed
14 days until next milestone

First Posted

Study publicly available on registry

October 19, 2020

Completed
Last Updated

October 19, 2020

Status Verified

October 1, 2020

Enrollment Period

3 months

First QC Date

October 5, 2020

Last Update Submit

October 12, 2020

Conditions

Keywords

temporomandibular Joint Disordersmyalgiaocclusal splintscognitive behavioral therapypain management

Outcome Measures

Primary Outcomes (4)

  • Masticatory muscle pain initial evaluation

    Pain intensity was measured using a visual analog scale. Subjects were asked to mark the intensity of pain perceived at the time of examination. This scale has a score from 0 to 10, with 10 being the greatest pain experienced by the patient

    It was applied in the initial evaluation

  • Masticatory muscle pain at 2 weeks

    Pain intensity was measured using a visual analog scale. Subjects were asked to mark the intensity of pain perceived at the time of examination. This scale has a score from 0 to 10, with 10 being the greatest pain experienced by the patient

    It was applied in week 2 of intervention.

  • Masticatory muscle pain at 6 weeks

    Pain intensity was measured using a visual analog scale. Subjects were asked to mark the intensity of pain perceived at the time of examination. This scale has a score from 0 to 10, with 10 being the greatest pain experienced by the patient

    It was applied in week 6 of intervention.

  • Masticatory muscle pain at 10 weeks

    Pain intensity was measured using a visual analog scale. Subjects were asked to mark the intensity of pain perceived at the time of examination. This scale has a score from 0 to 10, with 10 being the greatest pain experienced by the patient

    It was applied in week 10 of intervention.

Secondary Outcomes (10)

  • Mandibular range of movement initial evaluation

    It was applied in the initial evaluation

  • Mandibular range of movement at 2 weeks

    It was applied in week 2 of intervention.

  • Mandibular range of movement at 6 weeks

    It was applied in week 6 of intervention.

  • Mandibular range of movement at 10 weeks

    It was applied in week 10 of intervention.

  • Mandibular functional limitation initial

    It was applied in the initial evaluation

  • +5 more secondary outcomes

Study Arms (4)

Behavioral and self-care therapy control group

ACTIVE COMPARATOR

Subjects received verbal and written information on the etiology and prognosis of TMDs. In addition, advice on habits and behavior changes, relaxation techniques, sleep hygiene, diet modification, thermotherapy, encouragement to practice social and aerobic activities, and how to prevent risk factors and bad habits.

Behavioral: behavioral and self-care therapy

Rigid occlusal splint group

ACTIVE COMPARATOR

Subjects in this group received behavioral and self-care therapy, in combination with a rigid occlusal splint

Behavioral: behavioral and self-care therapyDevice: rigid occlusal splint (ROS)

Soft occlusal splint group

ACTIVE COMPARATOR

Subjects in this group received behavioral and self-care therapy, in combination with a soft occlusal splint

Behavioral: behavioral and self-care therapyDevice: soft occlusal splint (SOS)

Non-occlusive splint group

PLACEBO COMPARATOR

Subjects in this group received behavioral and self-care therapy, in combination with a non-occlusive splint

Behavioral: behavioral and self-care therapyDevice: non-occlusive splint (NOS)

Interventions

It is based on the premise that cognition, the process of acquiring knowledge and forming beliefs, is a primary determinant of mood and behavior. The therapy uses behavioral and self-care techniques to identify, correct and prevent behaviors or situations capable of altering the subject's state

Also known as: BST
Behavioral and self-care therapy control groupNon-occlusive splint groupRigid occlusal splint groupSoft occlusal splint group

Occlusal splint formed in a vacuum from rigid individual sheets of 2 mm thick polyethylene terephthalate (Biolon, Dreve, Unna, Germany).

Also known as: ROS
Rigid occlusal splint group

Occlusal splint formed in a vacuum from 3 mm thick individual soft sheets of ethyl vinyl acetate (Drufosoft, Dreve, Unna, Germany).

Also known as: SOS
Soft occlusal splint group

non-occlusive splint formed under vacuum from individual sheets of rigid polyethylene terephthalate 2 mm thick (Biolon, Dreve, Unna, Germany), from which the occlusal surfaces were cut and incisal edges, allowing the usual occlusal contact of each subject.

Also known as: NOS
Non-occlusive splint group

Eligibility Criteria

Age18 Years - 40 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64)

You may qualify if:

  • Age between 18 and 40 years
  • Presence of myalgia of the masticatory muscles with or without limitation of the mouth opening according to DC / TMD diagnostic criteria

You may not qualify if:

  • Painful joint TMD
  • History of treatment for TMD
  • Recent history of facial or cervical trauma
  • Current orthodontic treatment
  • Tooth mobility secondary to periodontal disease
  • Subjects with loss of more than two teeth other than third molars and / or premolars due to orthodontic indication
  • Subjects with systemic musculoskeletal diseases or who are under analgesic treatment
  • Subjects with a diagnosed intellectual disability who cannot express their will to participate in scientific research as established by law 20.584 of Chile

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Universidad Nacional Andrés Bello

Viña del Mar, 2520000, Chile

Location

Related Publications (1)

  • Niemela K, Korpela M, Raustia A, Ylostalo P, Sipila K. Efficacy of stabilisation splint treatment on temporomandibular disorders. J Oral Rehabil. 2012 Nov;39(11):799-804. doi: 10.1111/j.1365-2842.2012.02335.x. Epub 2012 Jul 19.

    PMID: 22809314BACKGROUND

Related Links

MeSH Terms

Conditions

Temporomandibular Joint DisordersMyalgiaAgnosia

Condition Hierarchy (Ancestors)

Craniomandibular DisordersMandibular DiseasesJaw DiseasesMusculoskeletal DiseasesJoint DiseasesMuscular DiseasesStomatognathic DiseasesNeuromuscular DiseasesNervous System DiseasesMusculoskeletal PainPainNeurologic ManifestationsSigns and SymptomsPathological Conditions, Signs and SymptomsPerceptual DisordersNeurobehavioral Manifestations

Study Officials

  • Diego I De Nordenflycht

    Universidad Nacional Andrés Bello

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, OUTCOMES ASSESSOR
Masking Details
In the first session, operator A explained to the study subjects the alternatives, benefits and possible complications of the treatments, but it was indicated that at the time of delivery of the treatment it would not be explained to them in which group they were assigned in order to protect blinding of treatments. Operator B was in charge of delivering the treatments randomly among the subjects selected by operator A. Finally, the controls were carried out by operator A in order to protect the blinding by not knowing the treatments of the patients at the time controls.
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: To protect the blinding of the study, it was carried out by two operators: A (examiner) and B (therapist). The treatment of the subjects consisted of 5 sessions: (1) evaluation and diagnosis of recruited subjects, and taking an impression of the upper jaw by operator A; (2) teaching BST and delivery of OS by operator B; (3) first treatment control and BST booster at 2 weeks; (4) second treatment control and BST booster at 6 weeks; (5) third control of treatment and removal of OS if it corresponds to 10 weeks. All controls were performed by operator A in order to use a blind design without the knowledge of the outcome assessor. To protect this, it is explained to the subject that operator A cannot know the treatment that was delivered. Operator B delivered the treatments at random among the subjects selected by operator A after the initial examination, being himself in charge of contacting them and delivering the corresponding treatment.
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Dental surgeon

Study Record Dates

First Submitted

October 5, 2020

First Posted

October 19, 2020

Study Start

October 16, 2017

Primary Completion

January 16, 2018

Study Completion

January 16, 2018

Last Updated

October 19, 2020

Record last verified: 2020-10

Data Sharing

IPD Sharing
Will share

All the collected individual participant data (IPD), study protocol, statistical analysis plan, informed consent form and a clinical study report will be shared, including results, discussion and bibliography studied.

Shared Documents
STUDY PROTOCOL, SAP, ICF, CSR
Time Frame
One-year database availability period, starting on October 19, 2020
Access Criteria
Database will be shared in Open Security Foundation (OSF), a non-profit public organization founded as a support organization for open source security projects.
More information

Available IPD Datasets

Study Protocol (10.17605/OSF.IO/9XTMD)Access

Locations