Adebayo G E, Gbadebo O S, Ajayi M D
Department of Restorative Dentistry, Faculty of Dentistry, College of Medicine, University of Ibadan/University College Hospital, Ibadan, Nigeria.
Ann Ib Postgrad Med. 2022 Jun;20(1):65-71.
Shade matching presents a complex and multidimensional process that involves the cognitive ability of the operator. Hence, dental professionals need to have high shade matching skill.
To compare the shade matching ability among three categories of dental professionals and assess the inter-examiner reliability of the visual shade selection.
This was a cross sectional study involving conventional visual tooth shade selection by three categories of dental professionals. Twenty four patients that met the selection criteria were included in the study and Ethical approval duly obtained. Visual shade selection using vital classical shade guide was done by calibrated 3 categories of the dental professionals. Data collected was analysed using IBM SPSS with statistical significance placed at p ≤0.05.
There were 9 (37.5%) male and 15 (62.5%) female participants with mean age ±SD of 39.9 ± 18.47 years. In the shade selection, the dental surgery technician and the house officer agreed in 2 (7.7%) teeth, dental surgery technician and consultant in 6 (23.1%) teeth while the house officer and consultant did so for 8 (30.8%) teeth. The three examiners agreed on shades selected for only 1 (3.8%) tooth. Inter-examiner reliability was 0.11. Shades selected by the consultant matched that of the spectrophotometer in 3 of the 26 teeth (11.5%) being the best.
Inter-examiner reliability was very low in the conventional visual shade selection. Experience and training in colour science and shade selection may play a role in correct tooth shade selection.
比色是一个复杂的多维度过程，涉及操作者的认知能力。因此，牙科专业人员需要具备较高的比色技能。
比较三类牙科专业人员的比色能力，并评估视觉选色的检查者间可靠性。
这是一项横断面研究，涉及三类牙科专业人员进行的传统视觉牙齿比色。24名符合入选标准的患者纳入研究，并正式获得伦理批准。由经过校准的三类牙科专业人员使用常用的经典比色板进行视觉选色。收集的数据使用IBM SPSS进行分析，统计学显著性设定为p≤0.05。
有9名（37.5%）男性和15名（62.5%）女性参与者，平均年龄±标准差为39.9±18.47岁。在比色过程中，牙科手术技师和住院医师对2颗牙齿（7.7%）的比色结果一致，牙科手术技师和顾问对6颗牙齿（23.1%）的比色结果一致，而住院医师和顾问对8颗牙齿（30.8%）的比色结果一致。三位检查者仅对1颗牙齿（3.8%）所选的颜色达成一致。检查者间可靠性为0.11。顾问所选的颜色与分光光度计在26颗牙齿中的3颗（11.5%）匹配，这是最佳匹配率。
在传统的视觉比色中，检查者间可靠性非常低。颜色科学和比色方面的经验与培训可能在正确的牙齿比色中发挥作用。
