Alignment
Conditions
Keywords
Pulpal blood flow, clear aligners, orthodontics
Brief summary
The aims of this study were to: - * Evaluate PBF in upper and lower teeth during orthodontic alignment using fixed appliances (0.014 super elastic NiTi arch wire) at different time intervals (20min, 48h, 72h and 1 month) of initial arch wire placement. * Evaluate the PBF in upper and lower teeth during orthodontic teeth alignment using clear aligners at different time intervals (20min ,48h, 72h and 1 month) of fitting the second aligner (first active aligner). * Compare the PBF changes between the above two different types of orthodontic appliances (fixed appliances and the clear aligners).
Detailed description
Aims: to evaluate the pulpal blood flow (PBF) during orthodontic teeth alignment and leveling using clear aligners (second aligner) and fixed orthodontic appliance at different time intervals of orthodontic force application. Materials and Methods: A total of 45 subjects were subdivided in two groups: group 1: 25 subjects treated with pre-adjusted edgewise fixed appliance with 0.014 inch NiTi as the alignment arch wire and group 2: 20 subjects treated using clear aligner. In both groups, PBF was measured for the upper right and the lower left using Laser Doppler Flowmetry at different time interval (20 minutes, 48 hours, 72 hours, 1 month) after the fitting of the arch wire in group one and after the delivery of the second aligner in group two.
Interventions
OTHEROrthodontic Alignment
Group 1:- Teeth alignment in this group started using round 0.014 NiTi arch wire. The 0.014 NiTi arch wire was placed into the slots of the brackets and tied with elastomers by figure of 8. During this stage, only tipping movement was applied.
Sponsors
Jordan University of Science and Technology
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE
Intervention model description
Two groups receiving 2 interventions. In the first group patients received fixed orthodontic appliance and in the second, they received clear aligner orthodontic appliance
Eligibility
Sex/Gender
ALL
Age
16 Years to 22 Years
Healthy volunteers
Yes
Inclusion criteria
* Both male and female subjects * 16 or more years old * Class I skeletal malocclusion * mild upper and lower arches crowding.
Exclusion criteria
- * Poor oral hygiene * Previous orthodontic treatment * Active periodontal disease * Missing teeth * Deep carious teeth * Teeth with root resorption * Endodontically treated teeth * History of previous trauma * Restoration on measured teeth * Medical conditions affecting blood vessels * Smoking
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Pulpal blood flow changes by the use of Laser Doppler Flowmeter (Moor lab, Moor instruments, UK) with a wavelength of 780 nm and a dental probe MP 13 (Moor instruments, UK; 2 fibers, 0.25 mm diameter, centers 0.5 mm spaced apart). | 20 minutes ,48 hours, 72 hours and 1 month | millimeter per second |
Outcome results
None listed