Evaluation of the Efficiency of Corticision on Accelerating of Leveling and Alignment Lower Crowded Incisors Using Cone Beam Computed Tomography - A Randomized Controlled Trial
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 26
- 试验地点
- 1
- 主要终点
- Speed of lower teeth movement.
研究概览
简要总结
This experimental study will evaluate the effect of corticision on accelerating the leveling and alignment of lower crowded incisors compared with the control untreated group using cone beam computed tomography.
The study sample will consist of 26 patients with less than 6 mm crowding. The sample will be allocated randomly into two experimental groups.
The brackets and passive SS wire will be applied with radiographic metal guides between each tooth to allow for accurate corticision site 2 mm below the gingival papilla and to prevent tooth roots injury. The dentoalveolar changes occurring after leveling and alignment of lower anterior teeth will be evaluated using CBCT radiographs, Frequency, degree of root resorption, and the incidence of bone dehiscence will be assessed in relation to initial situation.
详细描述
Crowding is the most common form of malocclusion. Different methods have been used to resolve crowding, including extraction and nonextraction. Corticision is an important methods to accelerate tooth movement in crowded cases. Cortical bone incision without flap elevation enhances turnover rate of surrounding structures and decreases the time for leveling and alignment. In orthodontics, CBCT imaging has been applied to evaluate impacted teeth and root resorption. But the data are very rare regarding the application of CBCT in tooth movement. So CBCT will be used in this research to evaluate the amount of external apical root resorption (EARR) and presence of dehiscence in the lower anterior teeth in the crowded cases. Furthermore, the duration of alignment will be compared between corticision group and non-corticision group.
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
- Single (Outcomes Assessor)
入排标准
- 年龄范围
- 18 Years 至 25 Years（Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •patients age 18 years or more
- •complete permanent dentition with second molars
- •crowding of less than 6 mm
- •good healthy patients without systematic diseases
- •absence of spaces in the lower dental arch
- •orthodontic treatment protocol does not required extraoral appliances, intraoral elastics, and expansion during leveling and alignment in the lower arch
- •good oral hygiene
- •absence of periodontal lesion
排除标准
- •patients with syndromes, clefts, or craniofacial abnormalities or systematic diseases
- •poor oral hygiene or periodontal lesion
- •previous orthodontic treatment.
- •Inability for brackets bonding in lower anterior teeth
- •presence of extreme skeletal discrepancy in vertical , transverse and anteroposterior relations
- •Delay rebonding of any loosing brackets for more than one week in the lower anterior teeth
研究组 & 干预措施
Traditional fixed appliance
Fixed orthodontic appliances will be applied for aligning and leveling of lower anterior teeth up to 19*25 stainless steel wires using traditional brackets; American Orthodontics Master® MBT 0.022" Brackets
干预措施: Traditional fixed appliance (Device)
Fixed appliance and corticision
Fixed orthodontic appliances with corticison will be applied for aligning and leveling of lower anterior teeth up to 19*25 stainless steel wires using traditional brackets; American Orthodontics Master® MBT 0.022" Brackets
干预措施: Traditional fixed appliance (Device)
Fixed appliance and corticision
Fixed orthodontic appliances with corticison will be applied for aligning and leveling of lower anterior teeth up to 19*25 stainless steel wires using traditional brackets; American Orthodontics Master® MBT 0.022" Brackets
干预措施: Corticision (Procedure)
结局指标
主要结局
Speed of lower teeth movement.
时间窗: After the leveling and alignment stage of the lower teeth, which will take approximately 9 months
The speed of lower teeth movement during leveling and alignment stage will be measured and compared between groups.
次要结局
- Changes of lower teeth torque(Changes will be evaluated before and after the lower teeth leveling and alignment stage, which will take approximately 8 months)
- Changes of lower teeth tipping(Changes will be evaluated before and after the lower teeth leveling and alignment stage, which will take approximately 8 months)