Evaluation of Antagonist Wear Behavior and Patient Satisfaction of Monolithic Zirconia Versus Lithium Silicate Zirconia Crowns
试验速览
- 阶段
- 不适用
- 入组人数
- 26
- 主要终点
- wear of the antagonist natural enamel
研究概览
简要总结
evaluation of wear behavior and patient satisfaction of monolithic zirconia and zirconia reinforced glass crowns after follow-up periods 0,3,6,12 months.
详细描述
two groups of patients will be selected according to special inclusion criteria n=13 in each group total of 26. each group will receive one of the crowns used in this study either ( monolithic zirconia or zirconia reinforced lithium silicate glass) after crown delivery wear and patient satisfaction will be recorded at 0,3,6,12 moths follow-up periods.
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)
盲法说明
double blind
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
- •Patient age range from 20-60 to be able to read and write in order to sign the informed consent document.
- •Patients physically and psychologically able to tolerate conventional restorative procedures.
- •Patients with no active periodontal and or pulpal diseases, having teeth with good restorations.
- •Patients with root canal treated teeth requiring full coverage restorations.
- •Patients indicated for full coverage (e.g. moderate to severe discoloration, coronal fracture, malposed or malformed teeth).
- •Patients willing to return for follow-up examinations and assessments
排除标准
- •Patients in the growth stage with partially erupted teeth.
- •Patient with poor oral hygiene.
- •Patients with psychiatric problems or unrealistic expectations
- •Patient with no opposite occluding dentition in the area intended for restoration.
- •Patient suffering from Para functional habits.
研究组 & 干预措施
monolithic zirconia
Zirconia or zirconium dioxide (ZrO2) is a highly attractive ceramic material in prosthodontics due to its excellent mechanical properties. It is widely used to build prosthetic devices.
干预措施: zirconia reinforced lithium silicate glass ceramic (Other)
zirconia reinforced lithium silicate glass ceramic
It represent a new generation of glass ceramic material, enriched with zirconia (10% by weight), the material offers natural esthetics with successful outcome.
干预措施: zirconia reinforced lithium silicate glass ceramic (Other)
结局指标
主要结局
wear of the antagonist natural enamel
时间窗: from baseline till one year
loss of opposing tooth structure which will be measured by 3D Profilometer
次要结局
- patient satisfaction(from baseline till one year)
研究者
Esraa Mohamed Hany
PHD candidate, fixed prosthodontic department, faculty of Oral and dental Medicine
Cairo University