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临床试验/NCT07521267
NCT07521267招募中不适用

Evaluation of Silver-Hydroxyapatite Nano-coated Versus Uncoated Orthodontic Miniscrews for en Masse Retraction of the Upper Anterior Segment: A Randomized Clinical Trial

Al-Azhar University1 个研究点 分布在 1 个国家目标入组 14 人开始时间: 2026年5月1日最近更新:
适应症
干预措施

试验速览

阶段
不适用
状态
招募中
入组人数
14
试验地点
1
主要终点
Assessment of the clinical and radiographically success rate of nanocoated versus uncoated orthodontic miniscrews after en masse retraction

研究概览

简要总结

study will be directed to evaluate silver-hydroxyapatite nano-coated versus uncoated orthodontic miniscrews for en masse retraction of the upper anterior segment.

详细描述

Silver-hydroxyapatite nanoparticles (Ag-HA NPs) have lately gained popularity in dentistry due to their unique combination of silver antibacterial activity and hydroxyapatite's osteoconductive, remineralizing characteristics. Ag-HA has shown potential in resolving two important clinical issues: infection control and anchoring stability. Coating orthodontic miniscrews with Ag-HA NPs has been demonstrated to reduce peri-implant biofilm growth by their antimicrobial effect, minimizing inflammation, and increasing osseointegration, thus increasing the long-term success of temporary anchoring devices (TADs).

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
Double (Participant, Outcomes Assessor)

入排标准

年龄范围
14 Years 至 20 Years(Child, Adult)
性别
All
接受健康志愿者

入选标准

  • Class I orthodontic cases with bimaxillary protrusion of the anterior segment of the upper jaw that need at least extraction for orthodontic treatment.
  • Age 14-20 years.
  • Good oral hygiene with healthy periodontium.
  • Need for an absolute skeletal anchorage.
  • Systemically healthy patients.

排除标准

  • Patient with craniofacial anomalies (e.g, cleft lip and palate)
  • Presence of systemic diseases or syndromes affecting bone metabolism (e.g, osteoporosis, rickets)
  • Poor oral hygiene or uncooperative patients.
  • Extensive dental caries or untreated periodontal disease.
  • History of trauma or surgery affecting the maxilla or mandible.

研究组 & 干预措施

uncoated titanium miniscrews

Active Comparator

Patients will receive conventional uncoated titanium miniscrews of the same dimensions and design as Arm 1, but without nano-coating.

干预措施: uncoated titanium miniscrews (Device)

silver-hydroxyapatite nanocoated titanium miniscrews

Experimental

Patients will receive silver-hydroxyapatite nanocoated titanium miniscrews. These miniscrews will be placed in the maxillary bone for en masse retraction of the upper anterior teeth.

干预措施: Silver nanoparticles (Device)

结局指标

主要结局

Assessment of the clinical and radiographically success rate of nanocoated versus uncoated orthodontic miniscrews after en masse retraction

时间窗: about 6 months

Assessment of the clinical and radiographically success rate of nanocoated versus uncoated orthodontic miniscrews after en masse retraction

次要结局

  • Assessment of the rate of en masse retraction of the anterior segment of the upper arch(6 months)

研究者

申办方类型
Other
责任方
Principal Investigator
主要研究者

Hashem Khalil Saleh Mohammed

Principle Investigator, MSc Candidate in Orthodontics

Al-Azhar University

研究点 (1)

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