Evaluation of the Effects of Alternating Rapid Maxillary Expansion and Facemask Use in Cases of Class III Malocclusion Caused by Maxillary Retrognathia- A Prospective, Randomized Clinical Trial
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 40
- 试验地点
- 2
- 主要终点
- Evaluation of Skeletal, Dental, and Soft Tissue Angular Measurements
研究概览
简要总结
Diverse viewpoints exist regarding the correlation between the conventional rapid maxillary expansion (RME) and facemask approach and the alternative RME and facemask hybrid technique (Alt-RAMEC) in terms of the degree of maxillary protraction. The findings of the study may offer a novel approach to protocol selection based on the anomaly's degree of severity. The objective of this investigation is to assess and contrast the skeletal and dentoalveolar outcomes of three distinct Alt-RAMEC techniques.
详细描述
Alternating rapid maxillary expansion and constriction (Alt-RAMEC) procedure is one of the most frequently used methods in the treatment of Class III cases caused by maxillary retrognathia. The objective of this investigation is to conduct a comparative analysis of the skeletal and dentofacial outcomes of three distinct techniques for maxillary protraction Following the primary recording, the patients were evaluated using bonded-type rapid maxillary expansion (RME) devices and three discrete Alt-RAMEC techniques (1, 3, and 5 weeks). Lateral cephalograms were obtained from a sample of 40 patients (18 males and 22 females) with a mean age of 10.64 ± 0.98. These images were taken both before (T1) and after the 6th month of facemask treatment (T2), and were subjected to total and local superimpositions. The Wilcoxon Sign, Kruskal-Wallis and Mann-Whitney U tests were used to evaluate the data.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Sequential
- 主要目的
- Treatment
- 盲法
- Triple (Participant, Care Provider, Investigator)
入排标准
- 年龄范围
- 9 Years 至 11 Years（Child）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •Maxillary retrognathia (SNA ≤ 79°)
- •Skeletal Class III malocclusion (ANB ≤ -1°)
- •Anterior cross-bite
- •Class III molar relationship
- •Horizontal growth pattern (SN/Go-Gn < 30°)
排除标准
- •Previous orthodontic treatment
- •Systemic disorders
结局指标
主要结局
Evaluation of Skeletal, Dental, and Soft Tissue Angular Measurements
时间窗: 6 months
Changes at the maxillary advancement, teeth positions and soft tissues amount were assessed in angular level. Skeletal measurements: Angular measurements: SNA (°), SNB (°), SN/S-Gn (Y-axis)(°), SN/Go-Gn (°), Ar-Go-Gn (°), SN/Go-Ar (°), and ANB (°) were measured. Dental measurements: Angular measurements: U1 to MaxP (°) for maxillary dentoalveolar measurements; L1-MandP (°) for mandibular dentoalveolar measurements; U1-L1 (°) for interdental measurements were performed. Soft tissue measurements: Changes at the upper and lower lip assessed. Angular measurements: G-Sn-Pg' (°), Nasolabial angle (°), and Labiomental angle (°) were measured.
次要结局
- Evaluation of Skeletal, Dental, and Soft Tissue Millimetrical Measurements(6 months)
研究者
Hande Uzunçıbuk
Research Assistant Dr./ Principal Investigator
Trakya University