A prospective randomised clinical trial to compare pain levels of two orthodontic fixed bracket systems

ISRCTN ISRCTN05296896
DOI https://doi.org/10.1186/ISRCTN05296896
Secondary identifying numbers N/A
Submission date
13/03/2005
Registration date
31/03/2005
Last edited
29/01/2010
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Oral Health
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data

Plain English summary of protocol

Not provided at time of registration

Contact information

Miss Mary McKnight
Scientific

Department of Oral and Maxillofacial Surgery and Orthodontics
The John Radcliffe
Headley Way
Headington
Oxford
OX3 9DU
United Kingdom

Study information

Study designRandomised controlled trial
Primary study designInterventional
Secondary study designRandomised controlled trial
Study setting(s)Not specified
Study typeTreatment
Scientific title
Study objectivesPain is frequently experienced by patients, particularly during the early stages of orthodontic treatment, when the teeth are being moved. The pain is thought to be due to forces applied to the teeth during tooth movement with orthodontic fixed appliances or "braces". Pain experienced is unpredictable and usually peaks at 48 to 72 hours after the brace has been adjusted. Not all patients complete their orthodontic treatment because of the pain experienced at the start of treatment. An alternative type of fixed orthodontic bracket has been designed which the manufacturers claim is less painful to the patient during treatment. However, there is no independent evidence to support this finding. The
bracket passively holds the orthodontic wire in position and is said to reduce friction. The standard orthodontic bracket holds the wire in position using small elastic bands which impart more friction, therefore more force is needed to overcome the friction and move the tooth.
The aim of this study is to establish whether the new type of orthodontic bracket results in less pain for the patient. Secondarily it will establish whether the treatment duration is reduced, whether space closure between teeth is faster and whether the time taken to adjust the brace is reduced.
Null Hypothesis: there is no difference in pain experienced by patients when comparing the true straight orthodontic bracket and the Damon bracket
Study Hypothesis: patients experience less pain during fixed orthodontic treatment using the Damon bracket as compared with the true straight bracket.
Ethics approval(s)Not provided at time of registration
Health condition(s) or problem(s) studiedPain levels during orthodontic treatment
InterventionRandomisation of treatment to two fixed appliance systems - true straight bracket and the Damon bracket. Comparing pain levels, rate of space closure when teeth have been extracted, treatment duration.
Intervention typeOther
Primary outcome measureDoes an alternative design of orthodontic fixed brace result in less pain for the patients during orthodontic treatment?
Secondary outcome measuresDoes the alternative orthodontic brace reduce treatment duration?
Does the alternative orthodontic brace allow space between teeth to be closed faster than the conventional orthodontic brace when teeth have been extracted?
Is the alternative orthodontic brace quicker and easier to adjust during treatment?
Overall study start date01/06/2005
Completion date30/06/2008

Eligibility

Participant type(s)Patient
Age groupAdult
SexBoth
Target number of participants112
Key inclusion criteriaPatients requiring orthodontic treatment with fixed appliances
Key exclusion criteria1. Those patients under the age of 16 will only be asked if they are accompanied by a parent or legal guardian
2. Patient undergoing active headgear treatment
3. Patients undergoing maxillary expansion with either quadhelix, rapid
maxillary expansion device or a upper removable appliance with midline expansion screw
4. Patients unable to speak English will unfortunately have to be excluded from the study as it will be difficult to ensure that exactly the same information is provided in all languages even with the benefit of professional interpreting staff
Date of first enrolment01/06/2005
Date of final enrolment30/06/2008

Locations

Countries of recruitment

  • England
  • United Kingdom

Study participating centre

Department of Oral and Maxillofacial Surgery and Orthodontics
Oxford
OX3 9DU
United Kingdom

Sponsor information

Oxford Radcliffe Hospitals NHS Trust (UK)
Hospital/treatment centre

Department of Oral and Maxillofacial Surgery and Orthodontics
The John Radcliffe
Headley Way
Headington
Oxford
OX3 9DU
England
United Kingdom

ROR logo "ROR" https://ror.org/03h2bh287

Funders

Funder type

Government

Oxford Radcliffe Hospitals NHS Trust (UK)

No information available

Results and Publications

Intention to publish date
Individual participant data (IPD) Intention to shareNo
IPD sharing plan summaryNot provided at time of registration
Publication and dissemination planNot provided at time of registration
IPD sharing plan

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Results article results 01/08/2009 Yes No