- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT00423956
Repair of Orthodontically-induced Tooth Root Resorption by Ultrasound
Repair of Orthodontically-induced Tooth Root Resorption by Ultrasound in Human Subjects
Tooth-root resorption, also known as shortening or erosion,(TRR) is one of the adverse outcomes of dental trauma, orthodontic tooth movement and dental replantation/transplantation. Orthodontically induced inflammatory root resorption (OIIRR) is somewhat different from other types of TRR. The treatment protocol of teeth diagnosed with severe OIIRR or other forms of TRR always involves root canal treatment or extraction of these teeth in severe cases and prosthetic replacement. Sometimes teeth with minor TRR may stay for an extended period of time with compromised bite functions. Although several trials have been proposed to minimize or prevent TRR or OIIRR, none is capable of being used in clinical situation to treat TRR or OIIRR in humans except for Low Intensity Pulsed Ultrasound (LIPUS). However, research examining the use of LIPUS to treat OIIRR has been limited to simple orthodontic tooth tipping. In reality, tooth movement is a combination of different types of tooth movements, namely tipping, bodily, rotational, torque, intrusion and extrusion tooth movements. However, the literature have pointed out that torque tooth movement, especially when the root apices are torques against cortical plates of bone produces the most dramatic type of tooth root resorption with poor prognosis. Our long-term goal is to develop a standard protocol for treating severe tooth root resorption with poor prognosis in humans, regardless of origin. Our preliminary data demonstrates that LIPUS can produce healing of OIIRR in humans after simple tipping movement, this was confirmed by an in-vitro study on isolated cementoblasts. The objective of the present proposal is to evaluate the effect of different treatment protocols of LIPUS on the healing process of orthodontically induced tooth-root resorption due to torque (Complex)type of tooth movement in humans.
The study Hypotheses are (I) LIPUS treatment for 20 minutes per day for 4 weeks will be effective in repairing OIIRR due to torque tooth movement.
(II) The stimulatory effect of LIPUS to repair OIIRR due to torque tooth movement than LIPUS treatment is dose and time dependent.
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
Study Type
Enrollment (Anticipated)
Phase
- Phase 2
- Phase 1
Contacts and Locations
Study Contact
- Name: Dr. Tarek H El-Bialy, PhD
- Phone Number: 1-780-492-2751
- Email: telbialy@ualberta.ca
Study Locations
-
-
Alberta
-
Edmonton,, Alberta, Canada, T6G 2N8
- Recruiting
- University of Alberta, Graduate Orthodontic Program
-
Contact:
- Dr. Tarek H El-Bialy, PhD
- Phone Number: 780-492-2751
- Email: telbialy@ualberta.ca
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- All the root apices of the experimental premolars should be completed.
- All experimental premolars should be sound and have no history of trauma/caries or root canal therapy.
Exclusion Criteria:
- Patients with incomplete experimental premolars' apices.
- 2- Any patient with experimental premolars that have a history of trauma/caries or root canal therapy.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Prevention
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Double
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Sham Comparator: Sham Comparator
One side is experimental and the opposite side is Sham control.
|
Repairing Induced tooth root resorption by ultrasound
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Time Frame |
---|---|
Evaluation of the effect of LIPUS on OITRR
Time Frame: Four weeks
|
Four weeks
|
Teeth Root length
Time Frame: four weeks
|
four weeks
|
Root resorption lacunae number and volume
Time Frame: Four weeks
|
Four weeks
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Study the effect of LIPUS on alveolar bone remodeling
Time Frame: Four weeks
|
Four weeks
|
|
Rate of tooth movement
Time Frame: Rate of tooth movement at the time of extraction
|
Teeth position before and after treatment will be measured to evaluate the possible effect of ultrasound on tooth movement.
|
Rate of tooth movement at the time of extraction
|
Collaborators and Investigators
Investigators
- Study Chair: Dr. Tarek H El-Bialy, PhD, University of Alberta, Edmonton, AB, Canada
Study record dates
Study Major Dates
Study Start
Primary Completion (Anticipated)
Study Completion (Anticipated)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Estimate)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- 6203
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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