ISRCTN ISRCTN26019919
DOI https://doi.org/10.1186/ISRCTN26019919
Secondary identifying numbers N/A
Submission date
19/10/2017
Registration date
02/11/2017
Last edited
01/04/2019
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Other
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data
Record updated in last year

Plain English summary of protocol

Background and study aims
Grinding and clenching the teeth have been associated with joint pain, muscle pain, headaches and tooth wear. The symptoms are very common and often are present with awakening in the morning. A common treatment for jaw pain and headaches has been the construction of bite planes. However, bite plane therapy often fails to control the symptoms of headache and pain. The aim of this study is to use the concept of stretching the muscles that close the jaw in order to have the muscles relax and therefore, decrease the force of grinding and clenching at night time.

Who can participate?
Females aged 20-57 years old who grind or clench their teeth.

What does the study involve?
Participants are examined clinically, complete clinical histories, have impressions taken for fabrication of their bite planes, and have lateral cephalograms (x-rays of the side of the face) and panoramic radiographs (dental x-rays) taken. Participants undergo sleep studies before treatment and after treatment while wearing their new altered bite plane. Participants are assessed for their grinding and clenching level.

What are the possible benefits and risks of participating?
Participants may benefit from a reduction or illumination of their symptoms of pain and headache. There are no risks to any of the patients who have been recruited into the study as all have had biplanes in the past and have not responded to treatment.

Where is the study run from?
1. University Hospital London Health Sciences Centre (Canada)
2. Private office of Dr. Douglas Awde (Canada)

When is the study starting and how long is it expected to run for?
August 1999 to February 2001

Who is funding the study?
Investigator initiated and funded (Canada)

Who is the main contact?
Dr Douglas Awde
doug@adpcorp.ca

Contact information

Dr Douglas Awde
Public

University of Western Ontario
London, Ontario
N6H 4S4
Canada

Phone +1 519 672 5456
Email doug@adpcorp.ca

Study information

Study designSingle centre interventional study, evaluating the symptoms of TMD/MPD and the sleep patterns of 19 female patients with altered vertical dimension bite planes who had previously failed bite plane therapy.
Primary study designInterventional
Secondary study designNon randomised study
Study setting(s)Other
Study typeTreatment
Participant information sheet ISRCTN26019919_PIS_01Nov17.docx
Scientific titlePilot study of the effect of altered vertical dimension bite plane therapy on myofascial pain dysfunction and temporomandibular joint dysfunction
Study objectivesThe aim of this study is to determine whether the use of variable thickness bite planes would control parafunction in patients who had previously not responded to splint therapy.
Ethics approval(s)The University of Western Ontario Review Board of Health Sciences Research Involving Human Subject, 15/12/1999, ref: Review number: 7340
Health condition(s) or problem(s) studiedTMD, MPD, Sleep Stages
InterventionPatients are examined clinically, complete clinical histories, have impressions taken for fabrication of mandibular Gelb bite planes, and have lateral cephalograms and panoramic radiographs taken. Participants undergo sleep studies prior to the start of treatment and after the treatment is completed wearing their new altered bite plane. Patients complete the TMJ Scale, the McGill pain questionnaire, the Epworth Sleepiness Scale, and the Helkimo Clinical Dysfunction Assessment. Bite planes are increased in thickness in a 4 week schedule if signs of parafunction are present on the splint and if symptoms are present.
Intervention typeDevice
Pharmaceutical study type(s)
Phase
Drug / device / biological / vaccine name(s)
Primary outcome measure1. TMD symptoms are measured using the TMJ scale at baseline and study end
2. Bruxism is measured using the polysomnograph at baseline and study end
3. Daytime sleepiness is measured using Epworth Sleepiness Scale at baseline and study end
4. Pain symptoms with treatment is measured using the McGill pain questionnaire at baseline and study end
5. Patient symptoms are measured using the Helkimo Index at baseline and study end
Secondary outcome measuresThere are no secondary outcome measures.
Overall study start date01/08/1999
Completion date01/02/2001

Eligibility

Participant type(s)Patient
Age groupAdult
SexFemale
Target number of participants20 female patients
Key inclusion criteria1. Permanent dentitions with no more than 1 tooth missing per quadrant (excluding wisdom teeth)
2. No implants or partial dentures
3. Not undergoing current treatment for TMD/MPD
3. Females aged 20-57
Key exclusion criteria1. Male
2. Children and seniors
3. Multiple missing teeth in each quadrant
4. Dental implants
5. Partial dentures
6. Active treatment for TAD/MPD
Date of first enrolment01/01/2000
Date of final enrolment01/06/2000

Locations

Countries of recruitment

  • Canada

Study participating centres

University Hospital London Health Sciences Centre
339 Windmere Road
London, Ontario
N6A 505
Canada
Private office of Dr. Douglas Awde
525 Oxford Street East
London, Ontario
N5Y 3H8
Canada

Sponsor information

Ontario Thoracic Society Block Term Grant
Research organisation

401-18 Wynford Drive
Ontario
Toronto
M3C 0K8
Canada

Phone +1 416 864 9911 ext. 254
Email ots@on.lung.ca
Website https://www.lungontario.ca/page.aspx?pid=421
ROR logo "ROR" https://ror.org/02pwbvs75

Funders

Funder type

Other

Investigator initiated and funded

No information available

Results and Publications

Intention to publish date01/01/2018
Individual participant data (IPD) Intention to shareYes
IPD sharing plan summaryAvailable on request
Publication and dissemination planThe study will be submitted to the Journal of the American Dental Association, which is a prominent high impact peer reviewed journal.
IPD sharing planThe datasets generated during and/or analysed during the current study are/will be available upon request from Dr. Douglas Awde. E-mail: awdedouglas@gmail.com, please CC. doug@adpcorp.ca

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Participant information sheet 01/11/2017 01/04/2019 No Yes

Additional files

ISRCTN26019919_PIS_01Nov17.docx
Uploaded 01/04/2019

Editorial Notes

01/04/2019: The participant information sheet has been uploaded.