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临床试验/NCT03779607
NCT03779607Unknown不适用

Clinical Evaluation and Patient Satisfaction Ofshade Matching Between Natural Teeth and Monolithic All-ceramic Crowns Fabricated From Two Materials (Randomized Controlled Clinical Trial)

Cairo University0 个研究点目标入组 10 人开始时间: 2019年1月最近更新:
适应症

试验速览

阶段
不适用
入组人数
10
主要终点
Color match

研究概览

简要总结

evaluation of color difference between zirconia reinforced lithium silicate (celtra press) VS lithium disilicate (Emax) in relation to natural tooth structure to determine which monolithic material will provide restoration with exact shade and optical properties as natural tooth structure.

详细描述

eligible patients will be randomized in 2 equal group between study group (celtra press) and control group (Emax) .

Single tooth in esthetic zone requiring full coverage crown is prepared to receive an all ceramic crown of .

Grouping: The crowns will be divided into two groups:

I:Teeth receiving crowns fabricated from IPS emax press ( ivoclarvivadent) II:Teeth receiving crowns fabricatedfrom Celtrapress(dentsplysirona).

Shade will be measured using intraoral spectrophotometer and evaluated.

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
20 Years 至 45 Years(Adult)
性别
All
接受健康志愿者

入选标准

  • Age range of the patients from 20-45 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 ( coronal fracture where partial coverage would lack retention, malposed or malformed teeth).
  • Patients with root canal treated teeth requiring full coverage restorations with contralatral tooth not filled orfractured.
  • 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.
  • Pregnant women'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
  • Patients have no opposite occluding dentition in the area intended for restoration\
  • Patients suffer from parafunctional habits.
  • deep discoloration of abutment .
  • Smokers and heavy caffeine consumers.

结局指标

主要结局

Color match

时间窗: immediately after crown cementation

using USPHS scoring system

次要结局

  • Patient satisfaction(immediately after crown cementation)

研究者

申办方类型
Other
责任方
Principal Investigator
主要研究者

Mohamed el sayed bekhiet

Resident - Fixed prosthodontic department- Faculty of oral and dental medicine

Cairo University

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