Clinical Evaluation of Wear Behavior of Human Enamel and Chipping of Veneered Zirconia Against Monolithic Zirconia (Randomized Controlled Clinical Trial)
试验速览
- 阶段
- 不适用
- 入组人数
- 26
- 主要终点
- Chipping
研究概览
简要总结
The aim of this study is to evaluate chipping and the degree of natural enamel loss opposing to monolithic zirconia compared to veneered zirconia restoration.
详细描述
While increase using of zirconia in extra coronal restoration as a substitute for metal ceramic restoration still high rate of technical complications specifically chipping of veneering ceramic and wear of antagonist are usually associated with veneered zirconia restoration which led to development of new monolithic zirconia to overcome these technical complications.
Therefore this study will be conducted to evaluate chipping and wear of antagonist of veneered zirconia versus monolithic zirconia all ceramic crowns in posterior area.
Benefits of the research to the patient:
Patient will receive a restoration with superior function, esthetics, and quality.
It will save teeth such as mutilated teeth, endodontically treated and teeth with massive loss of tooth structure that cannot be restored with direct restoration.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Supportive Care
- 盲法
- Double (Participant, Outcomes Assessor)
入排标准
- 年龄范围
- 20 Years 至 60 Years（Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •Age range of the patients from 20-60 years old; able to read and sign the informed consent document, illiterate patient will be avoided.
- •Patients able physically and psychologically to tolerate conventional restorative procedures.
- •Patients with no active periodontal or pulpal diseases, having teeth with good restorations.
- •Patients with teeth problems indicated for full coverage restoration (e.g. Moderate to severe discoloration, coronal fracture where partial coverage would lack retention, malposed or malformed teeth).
- •Patients with root canal treated teeth requiring full coverage restorations.
- •Patients willing to return for follow-up examinations and evaluation.
排除标准
- •Patients in the growth stage with partially erupted teeth.
- •Patients with poor oral hygiene and motivation.
- •A pregnant woman's to avoid any complication that may occur in dental office due to pregnancy or due to injected anesthetic solution.
- •Patients with psychiatric problems or unrealistic expectation (patient that has phobia from dental treatments or needle bunch).
- •Patients have no opposite occluding dentition in the area intended for restoration.
- •Patients suffer from Para functional habits.
研究组 & 干预措施
Monolithic zirconia full coverage restorations
InCoris (TZI-Densupply sirona)
干预措施: Monolithic zirconia (Other)
veneered zirconia full coverage restorations
InCoris zirconia material (TZI-Densupply sirona)
干预措施: Veneered zirconia (Other)
结局指标
主要结局
Chipping
时间窗: 12 month
chipping of the restoration by modified USPHs criteria as Alpha (Excellent) ideal,Bravo (Acceptable) less than ideal but no modifications required, Charlie (Acceptable but modifications needed) staining or other shade modifications required, and Delta (Unacceptable) remake.
次要结局
- tooth wear(12 month)
研究者
Nouran Mahmoud Ibrahim Metwally
mSc
Cairo University