Three Dimensional Printed Versus Conventional Heat Cured Acrylic Complete Denture: An In-Vivo Comparative 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
- retention
研究概览
简要总结
Introduction:
One major complaint frequently voiced by complete denture wearers is denture retention. Conventional denture disadvantage is heat-curing resin deformation. In addition, the pack and press technique that is still more common, residual stresses that occur at the time of packing are released when the material is removed from the flask, causing the resin to shrink, and this shrinkage is cited as a cause of poor fit of the denture base, In the field of prosthetic dentistry, the ability of additive manufacturing to fabricate prosthetic devices based on CAD data influences the overall quality, the mechanical properties of printed parts, the total cost and the manufacturing time. The milling process wastes large quantities of denture base material, and more recent three-dimensional (3D) prototyping promises a more sustainable additive approach by using less denture resin. However, no clinical reports have been published regarding the accuracy of the mucosal surface or denture retention for denture fabricated using conventional techniques compared to those fabricated using additive manufacturing.
Aim of the study:
Investigate the effect of two techniques of complete denture manufacturing (conventional and 3D printed) on denture retention, trueness (accuracy), and satisfaction.
Methodology:
Twenty patients will be selected from the outpatient clinic and will be divided into 2 groups, group A for conventional dentures and group B for 3D printed dentures, retention for the two groups will be measured at 0,1 and 3 months, and patient satisfaction will be recorded, and accuracy of the denture base will be measured on the software. The results will be tabulated and statistically analyzed using the SPSS program.
详细描述
Twenty patients will be selected from the Faculty of Dentistry (Suez Canal University) outpatient clinics with the following criteria:
- Patients with good neuromuscular control and free of systemic diseases
- Well-formed ridges with firm and healthy mucosa and no bilateral anterior undercuts.
The patients will be divided equally into two groups(n=10), group (A) which will receive conventional heat cure acrylic denture, and group (B) which will receive 3D printed denture.
Methodology:
A primary impression will be taken for each patient and a special self-cured acrylic tray will be fabricated.
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
- Single (Outcomes Assessor)
入排标准
- 年龄范围
- 50 Years 至 65 Years（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Patients with good neuromuscular control and free of systemic diseases
- •the edentulous ridge was covered with healthy firm and dense mucosa
- •They have upper and lower edentulous healthy alveolar ridges with no remaining roots, no severe bony undercut, or local pathological lesions.
- •patients had no previous dentures with a nearly equal edentulous period.
排除标准
- •history of bad habits e.g. severe clenching.
- •T.M.J disorders
- •patients with xerostomia, high palatal vault, and short or hyperactive lips were excluded.
研究组 & 干预措施
group A
group A will receive a conventional heat-cure acrylic denture
干预措施: two different denture manufacturing technique (heat cure pack and press technique(heat cure acrylic,Acrostone,Egypt)/3d printed dneture(HARZ lab,Russia)) (Device)
group B
group B will receive a 3D printed complete denture
干预措施: two different denture manufacturing technique (heat cure pack and press technique(heat cure acrylic,Acrostone,Egypt)/3d printed dneture(HARZ lab,Russia)) (Device)
结局指标
主要结局
retention
时间窗: 3 months
retention will be measured using digital force gauge(weihang electronic gauge,weihang industries, china)
patient satisfaction
时间窗: 3 months
Participants will answer a denture satisfaction questionnaire. Possible answers for each question and respective scores will be: unsatisfactory =0, regular =1, and good =2 (Rehmann et al., 2008)
accuracy of fit (adaptation)
时间窗: 1 week
the deviation of the denture fiitng surface from its corresponding cast will be measured using metrology software (GOM inspect,USA))
次要结局
- retention over time period(3 months)