跳至主要内容
临床试验/CTRI/2025/09/094206
CTRI/2025/09/094206尚未招募不适用

Analyzing microplastic release from orthodontic aligners : An In-vivo approach

Chettinad Dental College and Research Institute1 个研究点 分布在 1 个国家目标入组 16 人开始时间: 2026年1月5日最近更新:
适应症
相关药物

试验速览

阶段
不适用
状态
尚未招募
发起方
入组人数
16
试验地点
1
主要终点
The study found that PET, PETG, and PU aligners release

研究概览

简要总结

Clear orthodontic aligners are widely popular due to their aesthetic appeal and functional advantages. However, concerns about the release of microplastics (MPs) from these aligners have emerged, as plastic materials are susceptible to mechanical degradation. Ingesting MPs has been associated with oxidative stress, inflammatory lesions, and other health issues, including disruptions to gut microbiota, respiratory complications, cardiovascular risks, and cognitive function. This study investigates the in-vivo release of MPs from orthodontic aligners made of polyethylene terephthalate (PET), polyethylene terephthalate glycol (PETG), and polyurethane (PU), with a control group of patients using traditional metal braces.

研究设计

研究类型
Interventional
分配方式
Randomized
盲法
Participant and Outcome Assessor Blinded

入排标准

年龄范围
15.00 Year(s) 至 35.00 Year(s)(—)
性别
All

入选标准

  • •Patients with moderate to mild orthodontic malocclusions requiring clear aligner treatment
  • •Ability to commit to regular follow-up appointments for the duration of the study.
  • •Non-smokers to eliminate potential confounding factors related to oral health and material degradation
  • •No known allergies or sensitivities to materials used in orthodontic aligners (PET, PETG, PU).

排除标准

  • •Patients with severe malocclusions requiring non-clear aligner treatment options such as surgery
  • •Patients with a history of allergic reactions to materials used in clear aligners (PET, PETG, PU)
  • •Patients with temporomandibular joint disorders (TMD) that may affect aligner wear or exacerbate discomfort during treatment.

结局指标

主要结局

The study found that PET, PETG, and PU aligners release

时间窗: 3 months

microplastics, with varying amounts, while metal braces

时间窗: 3 months

showed no microplastic release, emphasizing health and

时间窗: 3 months

sustainability concerns.

时间窗: 3 months

次要结局

未报告次要终点

研究者

发起方
Chettinad Dental College and Research Institute
申办方类型
Research institution and hospital
责任方
Principal Investigator
主要研究者

Karthick P

Chettinad Dental College and Research Institute

研究点 (1)

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