Copmere Between Bleaching and Laminate Veneers
Shade Evaluation for Clinical Color Change of Discolored Teeth Treated by Bleaching vs Laminate Veneers.
研究概览
详细说明
Dental aesthetics, including tooth color, is of great importance for majority of the people and any discoloration or staining can affect their quality of life negatively1,2. In the UK it has been reported that 28% of grownups are dissatisfied with the appearance of their teeth and in the USA that 34% of grownups population are dissatisfied with their current tooth color. Moreover, in a survey of 3215 subjects from the UK 50% have admitted that they had some kind of tooth discoloration3,4.
Tooth bleaching has become one of the most popular aesthetic dental treatments. Because tooth bleaching is an effective, non-invasive procedure for the change of tooth discoloration, it is the best of treatment options for improving teeth color 5.
Ceramic restorations with excellent biocompatibility are widely used to achieve highly aesthetic characteristics in fixed prosthodontics6. Porcelain laminate veneers have become a popular method of treated tooth discoloration. But are expensive, brittle and difficult to repair7.
研究类型
注册 (预期的)
阶段
- 不适用
联系人和位置
参与标准
资格标准
适合学习的年龄
接受健康志愿者
有资格学习的性别
描述
Inclusion Criteria:
Patients included in this clinical trial :
- Men and women between 15and 40 years of age.
- Had good general and oral health.
- The participants needed to have six vital maxillary or mandibular anterior teeth without caries lesions or restorations.
- The maxillary canine was shade A3 or darker as judged by comparison with a shade guide (VITA Classical Shade Guide or Spectrophotometer measurement ).
Exclusion Criteria:
Participants were excluded from the study
- If they presented with anterior restorations; had bruxism habits.
- Were pregnant/lactating; presented with non vital tooth discoloration.
- were taking any drug with anti-inflammatory, analgesic, or antioxidant effect; or presented with recession and dentin exposure
学习计划
研究是如何设计的？
设计细节
- 主要用途：治疗
- 分配：随机化
- 介入模型：并行分配
- 屏蔽：单身的
武器和干预
参与者组/臂 |
干预/治疗 |
|---|---|
|
实验性的：bleaching agent
intervention : bleaching agent ( Boost 40%)
|
Opalescence Boost 40% is a 40% hydrogen peroxide, medical power bleaching gel.
The jet mix syringe ensures freshness for each application and precise dosing of the activator.
One barrel contains a unique chemical activation with sodium fluoride and potassium nitrate, which have been demonstrated to reduce caries susceptibility, lower sensitivity, and improve enamel micro-hardness.
The other barrel contains the concentrated hydrogen peroxide.
When mixed, Opalescence Boost results in a 1.1% fluoride and 3% potassium nitrate concentration.
|
|
有源比较器：laminate veneers
laminate veneers ( monolithic lithium - silicate)
|
A lithium-silicate glass ceramic is newly introduced to the market.
After crystallization, it demonstrates an ideal combination of strength, aesthetics and translucency that mirrors the vitality of natural teeth for fabrication of full anatomic anterior and posterior crowns.
It differentiated from other ceramics by its high chipping resistance, due to their monolithic composition and average flexural strength of 385 MPa.
Also Milling Block has good wear resistance due to the high content of ultra-fine nano-meter size crystalline structure.
Lithium-silicates ceramic blocks are available in the commonly used VITA Classical and Chromascop Bleach shades.
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研究衡量的是什么？
主要结果指标
结果测量 |
措施说明 |
大体时间 |
|---|---|---|
|
Color change.
大体时间：1-4 weeks
|
measures the change of color before and after intervention by Easy Shade Spectrophotometry
|
1-4 weeks
|
次要结果测量
结果测量 |
措施说明 |
大体时间 |
|---|---|---|
|
Corresponding color with comparator.
大体时间：1-4 weeks
|
by Digital photographs
|
1-4 weeks
|
合作者和调查者
出版物和有用的链接
一般刊物
- Gupta SK, Saxena P. Evaluation of patient satisfaction after non-vital bleaching in traumatized discolored intact anterior teeth. Dent Traumatol. 2014 Oct;30(5):396-399. doi: 10.1111/edt.12109. Epub 2014 Apr 10.
- Gerlach RW, Zhou X. Clinical trial comparing two daytime hydrogen-peroxide professional vital-bleaching systems. Compend Contin Educ Dent. 2004 Aug;25(8 Suppl 2):33-40.
- Almeida LC, Riehl H, Santos PH, Sundfeld ML, Briso AL. Clinical evaluation of the effectiveness of different bleaching therapies in vital teeth. Int J Periodontics Restorative Dent. 2012 Jun;32(3):303-9.
- Mountouris G, Mantzavinos Z, Michou H. [Discolorations: a new method of bleaching discolored vital teeth. (Preliminary study)]. Odontostomatol Proodos. 1990 Jun;44(3):195-206. Greek, Modern.
- Marson FC, Sensi LG, Vieira LC, Araujo E. Clinical evaluation of in-office dental bleaching treatments with and without the use of light-activation sources. Oper Dent. 2008 Jan-Feb;33(1):15-22. doi: 10.2341/07-57.
- Alomari Q, El Daraa E. A randomized clinical trial of in-office dental bleaching with or without light activation. J Contemp Dent Pract. 2010 Jan 1;11(1):E017-24.
研究记录日期
研究主要日期
学习开始 (预期的)
初级完成 (预期的)
研究完成 (预期的)
研究注册日期
首次提交
首先提交符合 QC 标准的
首次发布 (实际的)
研究记录更新
最后更新发布 (实际的)
上次提交的符合 QC 标准的更新
最后验证
更多信息
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