Effectiveness of Two Types of Fixed Lingual Retainers in Preventing Mandibular Incisor Relapse
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 54
- 试验地点
- 1
- 主要终点
- Relapse tendency
研究概览
简要总结
The study evaluates effectiveness of two types of fixed retainers in post orthodontic patients. Half of the subjects are randomly allocated Group 1 retainer (FRC) and other half is given Group 2 retainer (MSW) and followed for a period of one year.
详细描述
54 subjects were recruited and divided into two groups by random allocation. Consents were obtained . Group 1 received fiber reinforced composite retainer and group 2 received multistranded stainless steel wire retainer. The patients were recalled at every three months interval for a period of 12 months. They were evaluated for number of fractures, failure pattern based on adhesive remnant index and relapse tendency by measuring little's irregularity index.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Prevention
- 盲法
- Single (Outcomes Assessor)
入排标准
- 年龄范围
- 14 Years 至 30 Years（Child, Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •Subjects who have completed fixed appliance orthodontic treatment.
- •Subjects who have signed the consent forms.
- •Subjects who have accepted the terms and conditions of visiting after every three months for one year.
- •Non extraction cases in the mandibular arch with no IPR.
- •Patients without caries/ restoration/ fracture on the lower anterior teeth.
- •Patients with healthy periodontium with no periodontal disease at that time.
排除标准
- •Presence of syndrome or systemic disease.
- •Patients taking medications/ drugs.
- •Patients with poor oral hygiene.
- •Patients with congenitally absent/ missing anterior teeth in the mandibular arch.
- •Patients with habit of clenching/ bruxism.
- •Patients with history of betel nut chewing.
- •Presence of occlusal interferences.
研究组 & 干预措施
Fiber reinforced composite retainers
Fiber reinforced composite retainers were inserted in group 1 and were evaluated after every 3 months for a follow up period of 3 months.
干预措施: Orthodontic retainers (Device)
Multistranded stainless steel retainers
Multistranded stainless steel retainers were inserted in group 2 and were evaluated after every 3 months for a follow up period of 3 months.
干预措施: Orthodontic retainers (Device)
结局指标
主要结局
Relapse tendency
时间窗: 12 months
It was measured using Little's irregularity index
次要结局
- Bond failure(12 months)
- Failure Pattern(12 months)
研究者
Nasreen Iqbal Nagani
Principal Investigator
Dow University of Health Sciences