Dentoskeletal Changes In The Transverse Dimension Using Tooth Bone-Borne Vs. Bone-Borne Expansion Appliances: A Prospective, Randomized, Double-Blind Clinical Study With Cone-Beam Computed Tomography
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 18
- 试验地点
- 3
- 主要终点
- Nasal Changes
研究概览
简要总结
This study aimed to investigate the skeletal, dentoalveolar, and periodontal changes of tooth-bone-borne (TBB) and bone-borne (BB) appliances with identical miniscrew placement using cone-beam computed tomography (CBCT) in the post-pubertal growth spurt stage.
详细描述
Eighteen patients were divided into 2 groups: TBB group (n = 9, 16.11 ± 0.59 years of age) and BB group (n = 9, 15.33 ± 1.22 years of age). CBCT scans were obtained before treatment and after 3 months of expansion. Transverse skeletal and dental expansion, alveolar and tooth inclination, and buccal alveolar bone thickness were evaluated in maxillary first premolars and molars. Paired t tests and independent-sample t tests were used to compare the expansion appliances.
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
- 14 Years 至 17 Years（Child）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •With a unilateral or bilateral morphological lateral crossbite
- •Whose first molars and premolars had completely erupted at pretreatment
- •With maxillary constriction of more than 4 mm and less than 10 mm
- •Who were going through the post-pubertal growth spurt stage based on hand-wrist radiographs
排除标准
- •craniofacial anomalies
- •compliance problems
- •systemic or genetic disease
- •previous orthodontic treatment history
研究组 & 干预措施
tooth-bone-borne (TBB) group
The TBB appliance was composed of a central expansion jackscrew (Dentarum), 4 tubes, 2 bands on the upper first molars to facilitate placement of the appliance, and 1.5-mm diameter stainless steel arms extending to the premolar teeth. Soldered stainless steel tubes (internal diameter: 2.0 mm; external diameter: 3.0 mm; length: 2.0 mm) served as guides for miniscrew placement. The size of the screws (PSM) was chosen as 1.8 mm in diameter and 11 mm in length, considering the 2 mm height of the tubes, 1 to 2 mm gap between the appliance and the palate surface, 1 to 2 mm gingiva thickness, and 5 to 6 mm length required for the bicortical placement of the screw in the bone.
干预措施: skeletal anchorage and rapid palatal expansion (Device)
bone-borne (BB) group
The BB appliance was composed of a central expansion jackscrew, 4 tubes as described in TBB group, and less acrylic used around it to adjust its position. In order to carry it to the mouth after preparation on the cast model, essix was used, which also included the patient's teeth
干预措施: skeletal anchorage and rapid palatal expansion (Device)
结局指标
主要结局
Nasal Changes
时间窗: up to 1 year
Nasal Width:Distance between right and left inner lateral limits of nasal cavity, parallel to the base of the nasal cavity, Nasal Floor Width :Width at widest portion of floor of the nose
次要结局
- Maxillary Skeletal Changes(up to 1 year)
- Dentoalveolar Changes(up to 1 year)
研究者
Ahmet Yağcı
PROFESSOR
TC Erciyes University