Changes in Pulpal Blood Flow of Teeth During Leveling and Alignment Stages of Orthodontic Treatment Using Clear Aligners
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 45
- 主要终点
- 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).
研究概览
简要总结
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).
详细描述
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.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Treatment
- 盲法
- None
入排标准
- 年龄范围
- 16 Years 至 22 Years（Child, Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •Both male and female subjects
- •16 or more years old
- •Class I skeletal malocclusion
- •mild upper and lower arches crowding.
排除标准
- •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
研究组 & 干预措施
Group 1- Alignment with fixed appliance
A pre-adjusted edgewise fixed appliance (3M Gemini Uniteks, 0.022" Roth prescription brackets.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.
干预措施: Orthodontic Alignment (Other)
Group 2- Alignment with clear aligners
Clear aligner orthodontic appliance (EON, Eon Dental NV, Belgium). Teeth alignment with clear aligners.
干预措施: Orthodontic Alignment (Other)
结局指标
主要结局
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).
时间窗: 20 minutes ,48 hours, 72 hours and 1 month
millimeter per second
次要结局
未报告次要终点
研究者
Elham Abu Alhaija
Principal Investigator - Main thesis supervisor
Jordan University of Science and Technology