Clinical Evaluation of 3D-Printed Versus Semi-Direct Composite Resin Restorations
试验速览
- 阶段
- 不适用
- 状态
- 进行中（未招募）
- 入组人数
- 60
- 试验地点
- 1
- 主要终点
- Fracture of restorations
研究概览
简要总结
This randomized controlled clinical trial aims to evaluate the clinical performance of 3D-printed composite resin restorations compared with semi-direct composite resin restorations in posterior teeth requiring Class II inlay or onlay restorations.
详细描述
Dental restorations are commonly used to restore teeth affected by caries or structural defects. Advances in digital dentistry have introduced three-dimensional (3D) printing technologies that enable the fabrication of indirect composite resin restorations with improved precision, efficiency, and reproducibility. Semi-direct composite resin restorations represent another conservative restorative approach that combines the advantages of direct and indirect techniques while reducing polymerization shrinkage and improving anatomical form.
Although both techniques are increasingly used in clinical practice, evidence regarding their long-term clinical performance remains limited. Therefore, this randomized controlled clinical trial aims to compare the clinical performance of 3D-printed composite resin restorations and semi-direct composite resin restorations in posterior teeth requiring Class II inlay or onlay restorations.
Sixty patients aged 25 to 40 years who require two Class II inlay or onlay restorations will be enrolled by invitation from patients attending the Faculty of Dentistry, Tanta University. Participants will be randomly allocated into two groups according to the restorative material and fabrication technique used. Group I will receive 3D-printed composite resin restorations, while Group II will receive semi-direct composite resin restorations.
All cavity preparations and restorative procedures will be performed according to standardized clinical protocols and manufacturers' instructions. Clinical evaluations will be conducted at baseline, 6 months, 9 months, and 12 months after restoration placement using the modified FDI World Dental Federation criteria.
The primary objective is to evaluate the overall clinical performance and survival of the restorations over a 12-month follow-up period. Secondary outcomes include assessment of retention, marginal integrity, surface roughness, anatomical form, postoperative sensitivity, and the occurrence of secondary caries.
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
- 25 Years 至 40 Years（Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •Patients aged 25-40 years.
- •Patients requiring two Class II inlay or onlay restorations.
- •Teeth with carious lesions or defective restorations requiring indirect restorative treatment.
- •Teeth with sufficient structure to receive an inlay/onlay restoration.
排除标准
- •Patients with systemic diseases or medical conditions that may affect oral health or healing.
- •Pregnant or lactating patients.
- •Patients with poor oral hygiene or uncontrolled periodontal disease.
研究组 & 干预措施
3D-Printed Composite Resin Restorations
Participants will receive Class II inlay or onlay restorations fabricated using 3D-printed composite resin. Restorations will be placed following standardized cavity preparation and manufacturer instructions. Clinical performance will be evaluated at baseline, 6, 9, and 12 months using modified FDI criteria
干预措施: 3D-Printed Composite Resin Restorations (Other)
Semi-Direct Composite Resin Restorations
Participants will receive Class II inlay or onlay restorations fabricated using the semi-direct composite resin technique. Restorations will be placed following standardized cavity preparation and manufacturer instructions. Clinical performance will be evaluated at baseline, 6, 9, and 12 months using modified FDI criteria
干预措施: Semi-Direct Composite Resin Restorations (Other)
结局指标
主要结局
Fracture of restorations
时间窗: 12 months
Clinical evaluation of restoration fracture or bulk failure after placement of 3D-printed composite resin and semi-direct composite resin restorations. at baseline, 6 months, 9 months, and 12 months after restoration placement. using a modified FDI criteria score. All restorations will be evaluated and categorized based on their clinical performance according to the assigned criteria: score 1 indicates a clinically excellent restoration, scores 2 and 3 represent clinically acceptable restorations, while scores 4 and 5 are considered clinically unacceptable. Clinical success will be defined as restorations receiving scores of 1, 2, or 3, whereas scores of 4 or 5 will be considered clinical failures.
次要结局
未报告次要终点
研究者
Mohammed Abd El Ghany Mohammed
Principal Investigator
Tanta University