- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT04130477
Tunnel Attachments With Clear Aligners vs Clear Aligners
Computer Designed and Chairside Fabricated Custom Tunnel Attachments Paired With Clear Aligners Versus Traditional Clear Aligners for Orthodontic Leveling and Aligning- A Randomized Controlled Clinical Trial
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
Specific aims:
- Test and formally describe a novel method that utilizes clear aligners paired with computer-designed, chairside-fabricated tunnel attachments to achieve tooth movements that are challenging for clear aligners.
Conduct a randomized clinical trial to compare the ability of a traditional clear aligner system Invisalign® (Align Technology, Santa Clara, CA) and a clear aligner system incorporating wire threaded tunnel attachments in:
- achieving predicted outcomes; discrepancies in bucco-lingual and inciso-gingival positions between the virtual plan and end of treatment intraoral scan and will be measured in millimeters and angular discrepancies will be measured in degrees
- end of treatment ABO leveling and alignment objective grading scores
Materials and Methods:
A virtual set-up is completed by the clinician to plan the position, orientation, and dimension will be customized on the teeth to be moved.Generally, they are spherically shaped and their dimensions are approximately 2-3 mm. Vacuum-formed attachment template will be made to take the shape of a tube-holding spheres, in which tubes are embedded. The tubes are standard in size with an outside diameter of 0.032", and an inside diameter of 0.019" and 2 mm length The template will be loaded with composite after inserting the metal tubes are placed in their predetermined location on the tray. Double tubes will be used when torque control is needed. 0.016" buccal or lingual round wires will be placed into the tunnel attachments along the attachments. Aligners will be delivered to patient to be worn for at least 8 hours a day and changed as determined by the Dental Monitoring application.
Study Type
Enrollment (Anticipated)
Phase
- Not Applicable
Contacts and Locations
Study Contact
- Name: Alyaa Aldohan, BDS
- Phone Number: 8572658533
- Email: alyaa_aldohan@hsdm.harvard.edu
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- healthy subjects over the age of 10 years and below 65;
- eruption of all permanent anterior teeth;
- non-extraction treatment;
- maximum of 7mm of crowding/spacing;
- no more than 45 degrees of rotations
- no more than 7 mm crowding
Exclusion Criteria:
- presence of systemic diseases, cleft lip and palate, craniofacial anomalies, syndromes affecting bone or teeth, impacted teeth (excluding 3rd molars), congenitally missing lateral incisors, and tumors of the parathyroid gland;
- the presence of bridges or implants replacing anterior teeth;
- cases requiring orthognathic surgery;
- significant (> moderate) periodontal disease, intake of drugs affecting tooth movement or bone formation (chronic use of Non-Steroidal Anti-Inflammatory Drugs, bisphosphonates, levothyroxine, or teriparatide drug class), pregnancy;
- cases requiring tooth extractions
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Triple
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: Clear aligners with tunnel attachment
Participants will receive traditional clear aligner therapy with virtual set up and will be supplemented by virtually planned tunnel attachments which will be threaded by a light Nickel-Titanium wire
|
Tunnel attachments planned virtually and light Nickel Titanium wire
|
Active Comparator: Clear aligners
Participants will receive traditional clear aligner therapy with virtual set up
|
Clear Aligner therapy
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
1) Horizontal movement in millimeters
Time Frame: 3-12 months of orthodontic treatment
|
The virtual setups (predicted results) and actual results scans will be superimposed using a best-fit alignment method using Geomagic Control X (3D Systems, Rock Hill, South Carolina).
Initial alignment will be done using 300 surface points, and fine adjustments will be made using additional 1500 points.
This process will be repeated as necessary.
Once satisfactory superimposition is performed, the x, y, z coordinates (mm) of dental landmarks on the setup and result arches will be exported and analyzed.
Linear and angular measurements will be made to determine the accuracy of each system in achieving predicted vertical, in-out and torque treatment outcomes.
The percentage of accurate tooth movement will be determined with the following equation: [(|predicted-achieved|/|predicted|) 100%]
|
3-12 months of orthodontic treatment
|
2) Vertical movement in mm
Time Frame: 3-12 months of orthodontic treatment
|
The virtual setups (predicted results) and actual results scans will be superimposed using a best-fit alignment method using Geomagic Control X (3D Systems, Rock Hill, South Carolina).
Initial alignment will be done using 300 surface points, and fine adjustments will be made using additional 1500 points.
This process will be repeated as necessary.
Once satisfactory superimposition is performed, the x, y, z coordinates (mm) of dental landmarks on the setup and result arches will be exported and analyzed.
Linear and angular measurements will be made to determine the accuracy of each system in achieving predicted vertical, in-out and torque treatment outcomes.
The percentage of accurate tooth movement will be determined with the following equation: [(|predicted-achieved|/|predicted|) 100%]
|
3-12 months of orthodontic treatment
|
3) angular movement in degrees
Time Frame: 3-12 months of orthodontic treatment
|
The virtual setups (predicted results) and actual results scans will be superimposed using a best-fit alignment method using Geomagic Control X (3D Systems, Rock Hill, South Carolina).
Initial alignment will be done using 300 surface points, and fine adjustments will be made using additional 1500 points.
This process will be repeated as necessary.
Once satisfactory superimposition is performed, the x, y, z coordinates (mm) of dental landmarks on the setup and result arches will be exported and analyzed.
Linear and angular measurements will be made to determine the accuracy of each system in achieving predicted vertical, in-out and torque treatment outcomes.
The percentage of accurate tooth movement will be determined with the following equation: [(|predicted-achieved|/|predicted|) 100%]
|
3-12 months of orthodontic treatment
|
Collaborators and Investigators
Investigators
- Principal Investigator: Mohamed Masoud, BDS, DMSc, Harvard School of Dental Medicine
Publications and helpful links
Helpful Links
Study record dates
Study Major Dates
Study Start (Anticipated)
Primary Completion (Anticipated)
Study Completion (Anticipated)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- HarvardSDM
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
product manufactured in and exported from the U.S.
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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