Palatal implants versus headgear for orthodontic anchorage - a randomised controlled trial

ISRCTN ISRCTN24433142
DOI https://doi.org/10.1186/ISRCTN24433142
Secondary identifying numbers N0059108300
Submission date
12/09/2003
Registration date
12/09/2003
Last edited
02/07/2008
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

Dr Philip Benson
Scientific

University of Sheffield
Child Dental Health
Charles Clifford Dental Hospital
Sheffield
S10 2SZ
United Kingdom

Phone +44 (0)114 271 7895 / 7885
Email p.benson@sheffield.ac.uk

Study information

Study designRandomised controlled trial
Primary study designInterventional
Secondary study designRandomised controlled trial
Study setting(s)Not specified
Study typeTreatment
Participant information sheet Not available in web format, please use the contact details below to request a patient information sheet.
Scientific title
Study objectivesTo evaluate the clinical effectiveness of the mid-sagittal implant as a method of preventing unwanted tooth movement (anchorage) during orthodontic treatment. The anchorage offered by implants will be compared with that from conventional orthodontic anchorage reinforcement techniques.
Ethics approval(s)Added July 2008: Ethical approval for this study was obtained from North Derbyshire
Health and South Sheffield Local Research Ethics committees.
Health condition(s) or problem(s) studiedOral Health: Orthodontics
InterventionThe anchorage offered by implants will be compared with that from conventional orthodontic anchorage reinforcement techniques.
Intervention typeOther
Primary outcome measureTooth movement. The difference in the mesial drift of the buccal teeth to be calculated:
a. Relative to the cranial base using the Pitchfork analysis (Luecke and Johnston, 1992; Johnston, 1996) on the start and finish lateral cephalometric radiograph
b. Relative to the palatal rugae, from the start and finish study models (Hoggan and Sadowsky, 2001)
Secondary outcome measures1. Implant stability, discomfort and any signs of inflammation of the peri-implant tissues will be recorded with percussion tests using a Resonance Frequency Analyser (Meredith, 1998) and standard periodontal indices
2. Patient acceptability, compliance and discomfort measured using a questionnaire
3. Treatment outcome measured with the Peer Assessment Rating (PAR) index on the pre- and post-treatment study models
Overall study start date01/01/2002
Completion date01/06/2005

Eligibility

Participant type(s)Patient
Age groupAdult
SexBoth
Target number of participants40 patients
Key inclusion criteriaAdded July 2008:
The patients in the study all needed absolute anchorage, and no forward movement of upper molars could be allowed for successful treatment.
Key exclusion criteriaAdded July 2008:
Poor oral hygiene, unwilling to wear fixed appliances, unwilling to wear headgear or have the implant placed, and medical history precluding fixed appliance treatment.
Date of first enrolment01/01/2002
Date of final enrolment01/06/2005

Locations

Countries of recruitment

  • England
  • United Kingdom

Study participating centre

University of Sheffield
Sheffield
S10 2SZ
United Kingdom

Sponsor information

Department of Health (UK)
Government

Richmond House
79 Whitehall
London
SW1A 2NL
United Kingdom

Website http://www.doh.gov.uk

Funders

Funder type

Government

Sheffield Teaching Hospitals (Central Campus) - 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 on main outcome 01/11/2007 Yes No
Results article results on other outcomes 01/01/2008 Yes No