The Use of Temporary Anchorage Devices for Ridge Preservation After Tooth Extraction
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 6
- 试验地点
- 2
- 主要终点
- Changes in Width of Extraction Site (Ridge)
研究概览
简要总结
Alveolar bone is a bony portion surrounding the root of a tooth. The alveolar bone disappears gradually when the tooth is extracted. This bone loss often becomes a problem if a patient wants to close the missing tooth space with orthodontic treatments (braces), or to get a dental implant (a metal post replacing a tooth). Therefore, we would like to place small screws at the extraction sites to preserve the alveolar bone when the teeth need to be extracted and a patient cannot start treatments some time.
Mini-screws (small metal screws) are routinely used for regular orthodontic treatment. We will recruit patients who require extractions of two upper small molars (maxillary premolars) on both right and left sides. We will place one mini-screw on one side while the other side will be untouched after teeth extractions. Both sides will be followed at 8 months for examinations.
详细描述
The purpose of this study is to investigate the effects of transcortical mini-screws on ridge preservation following tooth extraction with a split mouth design. The study will evaluate clinical and radiographic outcomes following transcortical screw placements at extraction sites compared to non-treated extraction sites.
Specific Aim 1: To evaluate the clinical outcomes between the treated sites with a transcortical screw (the experimental group) and the non-treated sites (the control group) Null Hypothesis: There will be no differences in clinical parameters between the two groups.
Approach: The investigators will conduct a prospective split-mouth design clinical study. The investigators will compare the clinical changes in vertical bone height and horizontal bone width at 8 months from baseline (tooth extraction).
Specific Aim 2: To evaluate the radiographic outcome between the experimental group and the control group Null Hypothesis: There will be no difference in alveolar ridge height and width between the two groups.
Approach: The study will measure ridge height and width using cone beam computed tomography (CBCT) at baseline and 8 months.
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 —（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •age ≥ 18 years
- •two maxillary premolars (left and right) required to be extracted based on recommended dental treatment plans
排除标准
- •uncontrolled hypertension
- •diabetes mellitus
- •subjects with a history of a long-term use of corticosteroid (> 6 months)
- •subjects with a history of taking oral/IV bisphosphonates within the past 2 years
结局指标
主要结局
Changes in Width of Extraction Site (Ridge)
时间窗: 8 months
the distance from the buccal plate to the palatal plate
次要结局
未报告次要终点
研究者
Se-Lim Oh
Assistant Professor
University of Maryland, Baltimore