Laser Modification of Dental Implant Abutment Surfaces
2026年8月19日 更新者：Alexandria University
Impact of Surface Modification of Abutments of Dental Implants by Laser on Soft Tissue Seal (A Randomized Controlled Clinical Trial)
Introduction: Tight soft tissue integration to the dental implants is essential to achieve a successful outcome of dental implants.
Contamination by oral bacteria of the implant-mucosa interface can result in gingival recession, pocket formation, and bone resorption.
There are many surface modification strategies to reinforce the soft tissue seal to dental implants.
One of these strategies is laser technology.
The aim of this study is to evaluate the effect of laser-induced roughness of titanium surfaces of final abutments on the connective tissue seal to the dental implant.
Materials and Methods: Twenty-four pure titanium abutments of dental implants will be evaluated in this study.
The abutments will be divided into 2 groups: group A will be treated with ND: YAG laser, and group B will not be treated with a laser as a control group.
After 3 months, evaluation will be done by measuring peri-implant probing depth, modified gingival index, bleeding index, plaque index, and patient satisfaction.
研究概览
研究类型
介入性
注册 (实际的)
24
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。
学习地点
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Alexandria、埃及
- Outpatient Clinic of Periodontology and Oral medicine Department, Faculty of Dentistry, Alexandria University, Egypt
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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
- 成人
- 年长者
接受健康志愿者
不
描述
Inclusion Criteria:
- An informed consent will be signed from all the volunteers and they will be informed with all the steps, risk and benefits regarding the study.
- Patients having osseointegrated implants ready to receive final abutment.
Exclusion Criteria:
- The presence of chronic systemic disease.
- Smoking of more than 10 cigarettes per day.
- Bruxism habits.
- Alcohol or drug abuse.
- Poor oral hygiene.
- Pregnancy
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：无（打开标签）
武器和干预
参与者组/臂 |
干预/治疗 |
|---|---|
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有源比较器：控制组
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will include twelve abutments which will be left machined (as received from the manufacturer) to serve as controls.
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实验性的：学习小组
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This will include twelve titanium abutments treated by ND: YAG laser with an output power 4 W, representing 80mJ for a period of 5 seconds (20).
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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 |
|---|---|---|
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change in peri-implant probing depth
大体时间：up to 3 months
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Desirable probing depths around dental implants are 2.5mm to 4mm.
Peri-implantitis is often defined by the incidence of peri-implant probing depth ≥ 5 mm associated with bleeding on probing
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up to 3 months
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次要结果测量
结果测量 |
措施说明 |
大体时间 |
|---|---|---|
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change in Modified gingival index (MGI)
大体时间：up to 3 months
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the scoring will be as follows: 0 = absence of inflammation,
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up to 3 months
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chaneg in Bleeding index (BI)
大体时间：up to 3 months
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The Bleeding Index (modified Index of Saxton), will be performed by using a dental probe.
The probe will be engaged approximately 1 millimetre (mm) into the gingival crevice.
A moderate pressure will be used while sweeping.
The scoring system is as follows: 0 = no bleeding after 30 seconds, 1 = bleeding upon probing after 30 seconds, 2 = immediate bleeding observed
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up to 3 months
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change in Plaque index
大体时间：up to 3 months
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0 = no plaque.
1 = separate flecks of plaque at the cervical margin of the tooth. 2 = a thin continuous band of plaque (up to 1 mm) at the cervical margin of the tooth.
3 = a band of plaque wider than 1 mm but covering less than one-third of the crown of the tooth, 4= more than 1/3 but less than 2/3 of the tooth is covered with plaque , 5 indicated that more than 2/3 of the tooth surface is covered with plaque
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up to 3 months
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Patient satisfaction
大体时间：up to 3 months
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Patient satisfaction will be assessed using a visual analogue scale (VAS)
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up to 3 months
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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。
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 (实际的)
2025年6月15日
初级完成 (实际的)
2025年12月25日
研究完成 (实际的)
2025年12月30日
研究注册日期
首次提交
2026年8月19日
首先提交符合 QC 标准的
2026年8月19日
首次发布 (实际的)
2026年8月21日
研究记录更新
最后更新发布 (实际的)
2026年8月21日
上次提交的符合 QC 标准的更新
2026年8月19日
最后验证
2026年8月1日
更多信息
此信息直接从 clinicaltrials.gov 网站检索，没有任何更改。如果您有任何更改、删除或更新研究详细信息的请求，请联系 register@clinicaltrials.gov. clinicaltrials.gov 上实施更改，我们的网站上也会自动更新.