Comparative Analysis About the Dimensional Accuracy of Diagnostic Trial Restoration Transferring Performed With Four Different Methods for Trial Restoration Matrix Fabrication: an in Vivo Study
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 20
- 试验地点
- 1
- 主要终点
- Volumetric discrepancy
研究概览
简要总结
This observational analytical in vivo study aimed to assess the dimensional accuracy of diagnostic trial restorations fabricated through four different techniques: condensation silicone matrix without external shell, addition polyvinylsiloxane (PVS)-silicone matrix with an external resin-based shell, transparent addition PVS-silicone matrix with an external vacuum shell, and a CAD/CAM combination matrix.
Methods: Patients (n=20) in need of anterior upper teeth aesthetic rehabilitation were recruited. Clinical and radiographic examinations, intraoral scanning, and dental CAD software were used to design a virtual diagnostic waxing. A 3D printed waxed cast was obtained, and four different matrices were fabricated. Trial restorations were performed using calibrated materials, and intraoral scans were taken for each restoration. Linear and volumetric discrepancies were evaluated using reverse engineering alignment software
详细描述
The present study was an observational analytical in vivo study approved by the CEIM (Comité de Ética de Investigación con Medicamentos) of the International University of Catalunya.
The patient recruitment was carried out among patients from the Clínica Universitaria Odontológica (CUO) in need of an aesthetic rehabilitation of the anterior upper teeth.
The inclusion and exclusion criteria of the sample were the following:
Inclusion Criteria
- Patients between 18 and 70 years old.
- Patients who maintain the six upper anterior teeth.
- Patients in need of an additive restorative rehabilitation. Exclusion Criteria
- Patients with removable prostheses.
- Patients with an absent upper anterior tooth.
- Patients with a buccal inclination of any of the six upper anterior teeth.
研究设计
- 研究类型
- Observational
- 观察模型
- Case Crossover
- 时间视角
- Prospective
入排标准
- 年龄范围
- 18 Years 至 70 Years（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- 未提供
排除标准
- 未提供
结局指标
主要结局
Volumetric discrepancy
时间窗: From enrollment the patient underwent the different procedures within a month. The four procedures were delivered to the patient the same day, one after the other, in an order determined by the randomization
. Each trial restoration IOS (addition, condensation, clear, combined) was imported and aligned to the control reference STL cast of the waxed printed cast using the "best fit" algorithm of a non-dental reverse engineering software (Cx Geomagic Control X). Volumetric discrepancies, limited to the diagnostic waxing area, were measured using the RMS value.
次要结局
未报告次要终点