Comparison of Visual and Spectrophotometric Methods for Dental Color Measurement - A Pilot Clinical Trial
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 发起方
- 入组人数
- 20
- 主要终点
- Dental color measurement
研究概览
简要总结
Twenty patients of Dental Medicine School will be recruited to participate in a pilot study about dental color measurement in which visual and digital instruments will be tested.
Informed consents and local ethical committee clearance will be previously obtained.
All data will be collected after an oral hygiene procedure. Two different methods of color measurement will be tested: visual method with VITA Classical (VC) and VITA 3D-Master (VM) and digital method with Spectroshade Micro (SS) and VITA Easyshade (ES). The CIE L*a*b* values will be evaluated in the VC scale for both methods. Reproducibility will be assessed based on intra-operator intra-device agreement and the accuracy will be assessed based on inter-device agreement using the kappa coefficient (K) and intraclass correlation coefficient (ICC), respectively. Results will be presented as mean, with 95% CI
详细描述
Clinical practice in Dentistry has been changed during the times, with a large development of aesthetics considerations.
Tooth color is an effect of volume reflection, the passage of incident light through the tooth followed by backward emergence. Color can be categorized in different systems and CIE L*a*b* is the most common. For color acquision visual and digital methods are used.
Tooth shade matching in daily clinical practice is still a cause of disagreement and discomfort for many professionals. The gold standard is the use of dental shade guides by the clinicans who make a comparison between the sample (tooth) and multiple standard guides (shade guide tabs).
The gold standard visual system has been Vitapan Classical (VC). Other system is Toothguide 3D-Master (VM) which applies more closely the accepted color perception concepts of hue, lightness, chroma.
However, several limitations have been associated to visual procedure. The accuracy between clinicians is frequently low and there is a high variability.
研究设计
- 研究类型
- Interventional
- 分配方式
- Na
- 干预模型
- Single Group
- 主要目的
- Diagnostic
- 盲法
- None
入排标准
- 年龄范围
- 18 Years 至 —（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •Presence of all upper anterior teeth
- •A3 or darker in at least one of those indicated tooth
- •Professional dental prophylaxis in last fifteen days
排除标准
- •Bleaching treatments in last three years
- •Orthodontic appliances in indicated tooth
- •Presence of caries
- •Color changes
- •Dental abnormalities
- •Internal spots
- •Anterior restorations
- •Anterior crowns
- •Anterior veneers
研究组 & 干预措施
Dental colour measurement
Comparison of dental colour measurement between two shade guides VITA Classical and VITA Toothguide 3D-Master and two spectrophotometers VITA Easyshade and Spectroshade Micro
干预措施: Measure of tooth color (Procedure)
结局指标
主要结局
Dental color measurement
时间窗: 2 weeks
Agreement between two clinicians using two dental shade guides and two spectrophotometers in the determination of the colour of maxilary central incisors and canines
次要结局
未报告次要终点