Evaluation of Composite Veneers Fabricated by 3D Printing and Milling Technologies
2026年8月10日 更新者：youssef alaa
Evaluation of Composite Veneers Fabricated by 3D Printing and Milling Technologies (Randomized Controlled Clinical Trial & In-Vitro Study)
The clinical study aimed to evaluate the clinical performance, color stability, and wear of indirect composite veneers produced using 3D printing and milling technologies.
研究概览
地位
完全的
详细说明
A total of fifty-six anterior indirect veneers will be fabricated using 3D printing and milling technologies.
The veneers will be divided into two groups according to the technique of fabrication.
Group I: 28 veneers will be done using 3D printing technology (VarseoSmile TriniQ, Bego), and group II: 28 veneers will be done using milling technology (Cerasmart 270, GC).
Veneer restorations will be fabricated checked, and cemented, then will be evaluated using the modified FDI criteria at baseline, three months, six months, and one year.
Moreover, color stability and surface wear of the restorations will be evaluated in each follow-up session.
研究类型
介入性
注册 (实际的)
14
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
-
-
-
Alexandria、埃及
- Faculty of dentistry, Alexandria 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
- 成人
接受健康志愿者
不
描述
Inclusion Criteria:
- Healthy adult patients aged 18 to 45 years.
- Patients requiring veneer restorations due to discoloration, misalignment, tooth malformation or having irregular tooth shape that can be treated without full coverage.
- Patients meeting the criteria for Class I or Class II veneers according to the LeSage veneer classification system.
- Patients requiring veneers restorations on their bilateral maxillary anterior teeth.
- The selected teeth should be vital with absence of clinical signs and symptoms of periapical pathology.
- Patients having a normal occlusal relationship between upper and lower teeth (class I Angle classification).
- Patients capable of tolerating rubber dam applications.
- Patients willing to attend regular follow-up appointments.
Exclusion Criteria:
- Bad oral hygiene (Oral Hygiene Index Simplified >3).
- Non-vital teeth or endodontically treated teeth.
- Severe periodontal disease.
- Patients with para-functional habits (e.g., bruxism, attrition, wear facets).
- Dentin exposure more than 20% of the prepared surface for veneer.
- Prescence of smoking/vaping habits
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：Group I: 28 veneers will be done using 3D printing technology (VarseoSmile TriniQ, Bego)
|
A total of fifty-six anterior indirect veneers will be fabricated using 3D printing and milling technologies.
The veneers will be divided into two groups according to the technique of fabrication.
Group I: 28 veneers will be done using 3D printing technology (VarseoSmile TriniQ, Bego), and group II: 28 veneers will be done using milling technology (Cerasmart 270, GC).
Veneer restorations will be fabricated checked, and cemented, then will be evaluated using the modified FDI criteria at baseline, three months, six months, and one year.
Moreover, color stability and surface wear of the restorations will be evaluated in each follow-up session.
|
|
有源比较器：group II: 28 veneers will be done using milling technology (Cerasmart 270, GC)
|
A total of fifty-six anterior indirect veneers will be fabricated using 3D printing and milling technologies.
The veneers will be divided into two groups according to the technique of fabrication.
Group I: 28 veneers will be done using 3D printing technology (VarseoSmile TriniQ, Bego), and group II: 28 veneers will be done using milling technology (Cerasmart 270, GC).
Veneer restorations will be fabricated checked, and cemented, then will be evaluated using the modified FDI criteria at baseline, three months, six months, and one year.
Moreover, color stability and surface wear of the restorations will be evaluated in each follow-up session.
|
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 |
|---|---|---|
|
The functional properties of the examined veneer restorations
大体时间：1 year
|
All veneers were assessed clinically at 1 week (baseline) and subsequently at 3, 6, and 12 months, following the FDI evaluation criteria and scoring system, which indicates: Functional properties: (F1) Fracture of material and retention.
(F2) Marginal adaptation.
(F3) Proximal contact point.
(F4) Form and contour.
(F5) Occlusion and wear.
Each evaluated property was scored according to the FDI criteria using the following clinical scores: Score 1: Clinically excellent/very good (VG), Score 2: Clinically good (CG), score 3: Clinically satisfactory (CS), score 4: Clinically unsatisfactory (CU), score 5: Clinically poor (PO).
|
1 year
|
|
The biological properties of the examined veneer restorations
大体时间：1 year
|
All Veneers were assessed clinically at 1 week (baseline) and subsequently at 3, 6, and 12 months, following the revised FDI evaluation criteria and scoring system, which indicates: Biological properties (B1) Caries at restoration margins.
(B2) Dental hard tissue defects at the restoration margin.
(B3) Postoperative hypersensitivity and pulpal status.
Each evaluated property was scored according to the FDI criteria using the following clinical scores: Score 1: Clinically excellent/very good (VG), Score 2: Clinically good (CG), Score 3: Clinically satisfactory (CS), Score 4: Clinically unsatisfactory (CU), Score 5: Clinically poor (PO).
|
1 year
|
|
The aesthetic properties of the examined veneers
大体时间：1 year
|
All veneers were assessed clinically at 1 week (baseline) and subsequently at 3, 6, and 12 months, following the FDI evaluation criteria and scoring system, which indicates: Aesthetic properties: (A1) Surface luster and surface texture.
(A2) Marginal staining.
(A3) Color match.
Each evaluated property was scored according to the FDI criteria using the following clinical scores: Score 1: Clinically excellent/very good (VG), Score 2: Clinically good (CG), Score 3: Clinically satisfactory (CS), Score 4: Clinically unsatisfactory (CU), Score 5: Clinically poor (PO).
|
1 year
|
|
The color stability of the examined veneers
大体时间：1 year
|
All Veneers were assessed clinically at 1 week (baseline) and subsequently at 3, 6, 9, and 12 months using the vita easy shade spectrophotometer.
The CIEDE2000 formula will be used to measure the color change.
|
1 year
|
|
Wear resistance of the examined veneers
大体时间：1 year
|
All Veneers were scanned clinically using an intra oral scanner at 1 week (baseline) and subsequently at 3, 6, and 12 months.
The different scans were compared to baseline scan to assess the volume loss and accordingly the wear resistant.
|
1 year
|
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
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5月1日
初级完成 (实际的)
2026年8月5日
研究完成 (实际的)
2026年8月5日
研究注册日期
首次提交
2026年8月5日
首先提交符合 QC 标准的
2026年8月5日
首次发布 (实际的)
2026年8月10日
研究记录更新
最后更新发布 (实际的)
2026年8月12日
上次提交的符合 QC 标准的更新
2026年8月10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.