Copmere Between Bleaching and Laminate Veneers
Shade Evaluation for Clinical Color Change of Discolored Teeth Treated by Bleaching vs Laminate Veneers.
調査の概要
詳細な説明
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.
研究の種類
入学 (予想される)
段階
- 適用できない
連絡先と場所
参加基準
適格基準
就学可能な年齢
健康ボランティアの受け入れ
受講資格のある性別
説明
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
研究計画
研究はどのように設計されていますか？
デザインの詳細
- 主な目的：処理
- 割り当て：ランダム化
- 介入モデル：並列代入
- マスキング：独身
武器と介入
参加者グループ / アーム |
介入・治療 |
|---|---|
|
実験的：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.
|
|
アクティブコンパレータ：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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この研究は何を測定していますか？
主要な結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
|
Color change.
時間枠：1-4 weeks
|
measures the change of color before and after intervention by Easy Shade Spectrophotometry
|
1-4 weeks
|
二次結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
|
Corresponding color with comparator.
時間枠：1-4 weeks
|
by Digital photographs
|
1-4 weeks
|
協力者と研究者
スポンサー
出版物と役立つリンク
一般刊行物
- 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.
研究記録日
主要日程の研究
研究開始 (予想される)
一次修了 (予想される)
研究の完了 (予想される)
試験登録日
最初に提出
QC基準を満たした最初の提出物
最初の投稿 (実際)
学習記録の更新
投稿された最後の更新 (実際)
QC基準を満たした最後の更新が送信されました
最終確認日
詳しくは
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