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Effect of Different Adhesive Removal Techniques After Orthodontic Bracket Debonding on Postoperative Hypersensitivity: A Randomized Clinical Trial

2026年11月9日 更新者:Asmaa Badr Abdelfatah

The objective of this randomized clinical trial is to evaluate and compare the effect of four different residual adhesive removal techniques following orthodontic bracket debonding on postoperative tooth hypersensitivity. The study compares low-speed tungsten carbide burs against fiberglass burs, white stone burs, and rubber-impregnated polishing points. Postoperative hypersensitivity will be evaluated using a Visual Analogue Scale (VAS) with an air-blast stimulus test immediately after debonding, at 24 hours, and at 7 days follow-up.

研究概览

地位

尚未招聘

条件

干预/治疗

研究类型

介入性

注册 (估计的)

15

阶段

  • 不适用

联系人和位置

本节提供了进行研究的人员的详细联系信息,以及有关进行该研究的地点的信息。

学习联系方式

研究联系人备份

学习地点

      • Cairo、埃及
        • Faculty of Dentistry, Cairo University

参与标准

研究人员寻找符合特定描述的人,称为资格标准。这些标准的一些例子是一个人的一般健康状况或先前的治疗。

资格标准

适合学习的年龄

15年 至 45年 (孩子、成人)

接受健康志愿者

是的

有资格学习的性别

全部

描述

Inclusion Criteria:

  • Patients of any gender aged 15 to 45 years undergoing routine fixed labial orthodontic bracket removal across anterior and premolar teeth in both jaws.
  • Systemically healthy patients.
  • Good oral hygiene with a healthy, intact periodontium without clinical attachment loss or gingival recession.
  • Patients capable of reliably recording subjective discomfort on a Visual Analogue Scale (VAS) and willing to attend follow-up visits.
  • Sound fully erupted permanent incisors, canines, and premolars bonded with conventional stainless steel labial brackets.
  • Labial enamel surfaces free of visible pre-existing enamel defects, structural hypoplasia, severe fluorosis, or restorations.

Exclusion Criteria:

  • Active use of systemic analgesics, NSAIDs, corticosteroids, or centrally acting pain medications within 14 days prior to debonding.
  • Use of desensitizing toothpastes, mouthwashes, or topical fluoride varnishes within 30 days prior to the trial.
  • Heavy bruxism, clenching habits, or pathological wear/erosion extending into dentin.
  • Pregnant or lactating female patients.
  • Teeth with irreversible pulpitis, pulpal necrosis, history of endodontic treatment, or periapical pathology.
  • Teeth with active carious lesions or exposed cervical dentin/cementum.
  • Teeth with severe, deep enamel microcracks identified at baseline examination.

学习计划

本节提供研究计划的详细信息,包括研究的设计方式和研究的衡量标准。

研究是如何设计的?

设计细节

  • 主要用途:治疗
  • 分配:随机化
  • 介入模型:并行分配
  • 屏蔽:双倍的

武器和干预

参与者组/臂
干预/治疗
有源比较器:Active Comparator: Low-Speed Tungsten Carbide Bur

Residual composite adhesive remnants on eligible teeth are cleaned using a 12-fluted low-speed tungsten carbide bur operated at 15,000-20,000 rpm under continuous water cooling.

Composite resin is removed using a 12-fluted tapered low-speed tungsten carbide bur operated at 15,000-20,000 rpm under continuous air-water spray irrigation until all visible adhesive remnant is completely eliminated.

实验性的:Fiberglass Bur

Residual composite adhesive remnants on eligible teeth are cleaned using a fiberglass bur operated at 15,000-20,000 rpm under continuous water cooling

Composite resin remnants are eliminated using a fiberglass resin-removal bur operated at 15,000-20,000 rpm under continuous air-water spray irrigation until all visible material is completely removed.

实验性的:White Stone Bur

Residual composite adhesive remnants on eligible teeth are cleaned using a fine-grit white stone bur (aluminum oxide) operated at 10,000-15,000 rpm under continuous water cooling.

Composite resin remnants are removed using a fine-grit Arkansas white stone bur (aluminum oxide) operated at 10,000-15,000 rpm under continuous air-water spray irrigation until the enamel surface is clear.

实验性的:Rubber-Impregnated Polishing Point

Residual composite adhesive remnants on eligible teeth are cleaned using a rubber-impregnated polishing point operated at 10,000-15,000 rpm under continuous water cooling

Residual adhesive tags are removed and polished using a rubber-impregnated composite polishing point operated at 10,000-15,000 rpm under continuous air-water spray irrigation

研究衡量的是什么?

主要结果指标

结果测量
措施说明
大体时间
Postoperative Hypersensitivity
大体时间:Baseline (immediately post-debonding, before clean-up), 24 hours, and 7 days post-adhesive removal.

Patient-reported pain and hypersensitivity evaluated using a Visual Analogue Scale (VAS) score ranging from 0 (No pain) to 10 (Unbearable severe pain) in response to a 2-second dental syringe air-blast stimulus test.

Baseline (immediately post-debonding, before clean-up), 24 hours, and 7 days post-adhesive removal.

次要结果测量

结果测量
措施说明
大体时间
Procedure Time
大体时间:Immediately during the clean-up procedure.

Time taken to perform complete residual adhesive removal per tooth, measured using a stopwatch

Immediately during the clean-up procedure.

合作者和调查者

在这里您可以找到参与这项研究的人员和组织。

赞助

调查人员

  • 研究主任:Heba El-Deeb, PhD、Cairo to Department of Conservative Dentistry, Faculty of Dentistry, Cairo University .

研究记录日期

这些日期跟踪向 ClinicalTrials.gov 提交研究记录和摘要结果的进度。研究记录和报告的结果由国家医学图书馆 (NLM) 审查,以确保它们在发布到公共网站之前符合特定的质量控制标准。

研究主要日期

学习开始 (估计的)

2026年11月1日

初级完成 (估计的)

2027年6月1日

研究完成 (估计的)

2027年10月1日

研究注册日期

首次提交

2026年11月9日

首先提交符合 QC 标准的

2026年11月9日

首次发布 (实际的)

2026年11月13日

研究记录更新

最后更新发布 (实际的)

2026年11月13日

上次提交的符合 QC 标准的更新

2026年11月9日

最后验证

2026年11月1日

更多信息

与本研究相关的术语

其他相关的 MeSH 术语

其他研究编号

  • CONS 3-4-1

计划个人参与者数据 (IPD)

计划共享个人参与者数据 (IPD)?

不

药物和器械信息、研究文件

研究美国 FDA 监管的药品

不

研究美国 FDA 监管的设备产品

不

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