A clinical trial to study the efficiency of limited bone injury in increasing the rate of tooth movement during orthodontic treatment.
- Conditions
- Health Condition 1: null- Proclined upper incisors.
- Registration Number
- CTRI/2017/08/009331
- Lead Sponsor
- Dr Shivani Singh
- Brief Summary
Not available
- Detailed Description
Not available
Recruitment & Eligibility
- Status
- Completed
- Sex
- Not specified
- Target Recruitment
- 28
1. Patients undergoing fixed mechanotherapy with upper first premolar extractions requiring 5 mm or more of maxillary canine retraction.
2. Presence of full complement of teeth except third molars.
3. Fair oral hygiene.
Patients presenting with:
1. Previous history of orthodontic treatment.
2. Medical or systemic problems.
3. Active caries, pulpitis or periodontal disease.
4. Severe crowding (>=6mm) or severe cant of the maxillary skeletal base or palatal plane (inclination angle <= 80 and >= 95 degrees and base plane angle <=20 and >=40 degrees) simultaneously existing with severely divergent or convergent facial planes (Bjork sum <385 and >400).
5. Patients exhibiting microdontia or less than 5 mm of space available for canine retraction.
Study & Design
- Study Type
- Interventional
- Study Design
- Not specified
- Primary Outcome Measures
Name Time Method Mean rate of canine retraction per month, until 2 mm or less space is present distal to canine. Measured intraorally using a digital calipers. Measured as: residual extraction space between lateral incisor (disto-gingival wing of the bracket) and canine (mesio-gingival wing of the bracket); in mm; then expressed as [(space T0-space T1)/time T0-to-T1] in mm/month. Measured by: a calibrated person, fully blinded to experimental/control side (an orthodontist).Timepoint: Measurement timing: at baseline (before space closure), at 1-month intervals; end at space closure finalization (2 mm or less space remaining distal to the canine).
- Secondary Outcome Measures
Name Time Method â?¢Cumulative canine distal movement measured in mm, on pre and post dental casts. <br/ ><br>â?¢ Canine and molar rotation, tip, root resorption,bone density in HU, and alveolar bone loss to be measured on CBCT scans. <br/ ><br>â?¢ Any scars from MOPs, tooth discoloration, devitalisation or gingiva invagination will be noted. <br/ ><br>Discomfort level on VAS scale.Timepoint: At T0 and Tfinal, except, <br/ ><br>discomfort level which will be measured daily after the intervention for a week.