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Clinical Trial Details — Status: Recruiting

Administrative data

NCT number NCT04419805
Other study ID # 2-054-19
Secondary ID
Status Recruiting
Phase N/A
First received
Last updated
Start date April 1, 2021
Est. completion date December 30, 2025

Study information

Verified date February 2024
Source University of Dundee
Contact David Bearn, BDS
Phone 01382385024
Email d.bearn@dundee.ac.uk
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

Participants are orthodontic patients with anterior open bite (AOB) malocclusion. These patients will be treated by molar intrusion achieved using one of two interventions, either orthodontic fixed appliances incorporating a single palatal Temporary Anchorage Device (TAD) or orthodontic fixed appliances incorporating two buccal TADs


Description:

Participants will be recruited from those attending Dundee Dental Hospital Orthodontic Department and those currently awaiting treatment. Those that meet the inclusion and exclusion criteria will be invited to participate. After obtaining consent they will be allocated to receive one of the two interventions. The two interventions represent the currently available options for treatment of mild - moderate (1-6mm) anterior open bite in the Orthodontic Department and as such patients will be receiving routine treatment regardless of the arm they are randomised to. In order to assess the more effective intervention additional records will be taken during the treatment involving additional cephalometric radiographs, additional intra-oral scans or dental impressions (See later for details). Primary outcome is at the end of intrusion with TADs after 9-12 months, but participants will be followed until completion of treatment for the secondary outcome of stability of intrusion and overbite correction


Recruitment information / eligibility

Status Recruiting
Enrollment 32
Est. completion date December 30, 2025
Est. primary completion date October 30, 2025
Accepts healthy volunteers No
Gender All
Age group 12 Years to 40 Years
Eligibility Inclusion Criteria: - Patients with AOB of 1-6mm - Aged between (12 and 40 years). - Able to consent. - Patient due to undergo orthodontic treatment with fixed orthodontic braces. Exclusion Criteria: - Patient has previously had upper first permanent molar extraction. - Patient with congenital cleft of lip and/or palate or any other craniofacial anomalies. - Patient with bone disease or taking medications that affect the bone quality or nature. - Patient with an active digit sucking habit. - Pregnant or breastfeeding women

Study Design


Related Conditions & MeSH terms


Intervention

Device:
Single Palatal TAD
A single mini-screw inserted in the mid-palate
Two buccal TADs
Two buccal TADs inserted in the upper jaw

Locations

Country Name City State
United Kingdom Dundee Dental Hospital Dundee

Sponsors (1)

Lead Sponsor Collaborator
University of Dundee

Country where clinical trial is conducted

United Kingdom, 

References & Publications (1)

Yassir YA, McIntyre GT, Bearn DR. Three questionnaires to assess the perception of fixed orthodontic therapy before, during and after treatment: validity and reliability. Eur J Orthod. 2017 Aug 1;39(4):402-410. doi: 10.1093/ejo/cjw076. — View Citation

Outcome

Type Measure Description Time frame Safety issue
Primary Molar intrusion Amount of upper molar intrusion measured in mms on cephalometric radiograph 9-12 months after treatment commences
Secondary Overbite (vertical overlap of anterior teeth) Change in overbite (vertical overlap of anterior teeth) measured clinically directly from the teeth with a ruler and on 3D dental scans using 3D analysis software, both in mms 9-12 months after treatment commences
Secondary Patient Experience Patient experience with the use of temporary anchorage devices for intrusion by validated questionnaire which uses 3 or 4 point Likert Scales for a range of questions across relevant doamins. Depending on the question the scales are 'Improved/Same/Worse/Much worse' or 'Not at all / A little / A lot' or 'I do more / no difference / I do less' (Yassir et al 2017) 9-12 months after treatment commences
See also
  Status Clinical Trial Phase
Completed NCT02951286 - Molar Intrusion Using High Pull Headgear N/A
Completed NCT04901221 - The Use of Statically Determinate Force System in Closure of Anterior Open Bite in Adults. N/A