Orthodontic Appliances
Conditions
Keywords
Pulpal blood flow, self ligating brackets, orthodontics
Brief summary
\- Evaluate and compare initial changes in PBF between conventional and self-ligating fixed orthodontic brackets during leveling and alignment stage using 0.016 Nickle titanium (NiTi) and 0.016X0.022 NiTi archwires at different time intervals (20min, 24h, 72h, 1 week and 1 month) of initial arch wire placement.
Detailed description
Objectives: to evaluate and compare the initial changes in pulpal blood flow (PBF) between conventional and self-ligating fixed orthodontic brackets during leveling and alignment stage. Materials and Methods: A total of 22 patients (16 females and 6 males) aged 19± 2.53 years who presented with mild lower arch crowding were selected to participate in the study. A split mouth study design was applied for each patient. Two different fixed appliance brackets were used in the lower arch (self-ligating brackets on one side and conventional brackets on the other side of the same patients). PBF was measured for the lower right and left sides using Laser Doppler Flowmetry at different time intervals (20min, 24h, 72h, 1 week and 1 month) after the fitting of 2 alignment archwires; 0.016 NiTi and 0.016X0.022 NiTi. A repeated measures analysis of variance test and a Bonferroni post-hoc comparison test were applied to detect differences in PBF between the 2 groups.
Interventions
OTHERA Pre-adjusted edgewise brackets: 3M Gemini Unitek, 0.022 Roth prescription brackets
A pre-adjusted edgewise fixed appliance (3M Gemini Unitek, 0.022 Roth prescription brackets) on one side of lower arch. The standardized bonding technique was applied according to the manufacturer's instructions. Teeth alignment was initiated using round 0.016 NiTi arch wire until 0.016X0.022 NiTi was reached. The NiTi arch wires were placed into brackets slots and tied with elastomers (figure of 8).
OTHERSelf- ligating brackets: Unitek™ Gemini SL Self-Ligating Brackets, 0.022 Roth prescription brackets
Self-ligating brackets (Unitek™ Gemini SL Self-Ligating Brackets, 0.022 Roth prescription brackets) on the other side of lower arch. The standardized bonding technique was applied according to the manufacturer's instructions. Teeth alignment was initiated using round 0.016 NiTi arch wire until 0.016X0.022 NiTi was reached. The NiTi arch wires were placed into brackets slots and held in place by bracket's gate in the self-ligating brackets side.
Sponsors
Jordan University of Science and Technology
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE
Intervention model description
A split mouth study design was applied for each patient. Two different fixed appliance brackets were used in the lower arch (self-ligating brackets on one side and conventional brackets on the other side of the same patients).
Eligibility
Sex/Gender
ALL
Age
16 Years to 22 Years
Healthy volunteers
Yes
Inclusion criteria
* Both male and female subjects * 6 or more years old * Class I skeletal malocclusion * mild lower arch 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 and * smoking
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Pulpal blood flow changes by the use of Laser Doppler Flowmeter | 20 minutes ,48 hours, 72 hours and 1 month | millimeter per second |
Countries
Jordan
Outcome results
None listed