Evaluation of the Dental Changes Associated With an Eight Units Extended Maxillary Fixed Retainer
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 26
- 试验地点
- 2
- 主要终点
- lateral cephalometric changes assessment
研究概览
简要总结
Assessment of dental changes associated with an eight-unit extended maxillary fixed retainer in 3D. monitoring PDL response and evaluation of patient's satisfaction ,quality of life and speech with extended maxillary fixed retainer
详细描述
single-arm prospective clinical trial will be conducted to assess of dental changes associated with an eight-unit extended maxillary fixed retainer in 3D. monitoring PDL response and evaluation of patient's satisfaction ,quality of life and speech with extended maxillary fixed retainer.
. Twenty-six patients who finished the active orthodontic treatment phase (14-28 years) will be recruited upon complying with the inclusion criteria. Eight-unit extended maxillary fixed retainer will be bonded to palatal surface of maxillary incisors, canines and first premolars, PDL assessment will be carried out and patient acceptance to the appliance through the valid questionnaire then the patients will be followed up for 6 months to document 3D post-treatment changes.
研究设计
- 研究类型
- Interventional
- 分配方式
- Na
- 干预模型
- Single Group
- 主要目的
- Other
- 盲法
- None
入排标准
- 年龄范围
- 14 Years 至 28 Years（Child, Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •Patients who finished the active orthodontic treatment and started the retention phase.
- •Both genders.
- •Extraction and non-extraction cases
排除标准
- •Patients who had active transverse palatal expansion.
- •Patients with active periodontal disease.
- •Patients with systemic disease and bone diseases, or craniofacial syndromes, or the presence of cleft.
- •Patients with abnormal surface or morphological tooth structure or restorations.
结局指标
主要结局
lateral cephalometric changes assessment
时间窗: 6months follow up
evaluation of the changes of axial inclination of upper incisors before bonding fixed retainer and 6 months after bonding the retainer through measuring the axial inclination changes of upper incisors(u1-sn angle( upper 1 relation to cranial base ) , interincisal angle( angle between upper and lower incisors ) ,u1- FH angle( angle between upper incisor and Frankfort horizontal plane ) ,u1 to palatal plane angle (angle between upper incisor to palatal plane ), u1 to occlusal plane(angle between upper incisor and occlusal plane )
Evaluation of dental changes
时间窗: 6 months follow up
3D Evaluation of the dental changes associated with an eight unit extended maxillary fixed retainer by superimposition of STL files before bonding and 6 months after bonding fixed retainer which is bonded directly after completion of active orthodontic phase, the changes in teeth position will be assessed by linear differences between the first stl and final stl file after superimposing them using medit software , on demand software ,creating linear measurement that calculate how teeth moved in antroposterior plane , transverse and vertical planes
次要结局
- PDL response through probing depth assessment(6 months follow up)
- Plaque assessment(6 months follow up)
- Gingival bleeding assessment(6 months follow up)
- Gingival assessment(6 months follow up)