不同心理暗示对口腔比色能力测试结果的影响

The effect of different psychological suggestions on tooth shade selection ability

目的:给予受试者两种不同的心理暗示,令其对同一组色片进行比色测试。探讨比色者不同心理状态下比色结果的差异,为确定科学的比色能力测试方法提供论据。方法:选择具有2年以上修复临床经验的口腔修复学专业研究生及青年医师共42名作为受试者。从两套Vita 3D-Master比色片(共29个)中分别抽取出10个相同色片作为目标比色片,进行不同的随机排序编号;给予受试者不同心理暗示,令其使用Vita3D-Master比色板,在标准光源及非标准光源下分别对两组目标比色片比色,使用Wilcoxin符号秩和检验分析不同心理暗示状态下比色的平均正确率,Mann-Whitney U检验不同性别平均正确率的差异,并用MonteCarlo确切概率法检验分析非确定性心理暗示组比色结果中非标准色个数的人数分布。结果:在两种光源条件下,受试者对非确定性心理暗示组比色的平均正确率均低于确定性心理暗示组,且该差异经检验具有统计学意义(P<0.05);在标准光源条件下,男性及女性受试者对非确定性心理暗示组比色的平均正确率存在差异,且该差异具有统计学意义(P<0.05);非确定性心理暗示组比色结果中非标准色个数的人数分布在两种光源条件下无明显差异。结论:心理暗示对比色结果具有一定影响;配对测试与非配对测试得到的评价结果不同,进行比色能力测试时需模拟临床实际情况进行非配对测试,才有可能获得更准确、更客观的比色评价结果。

Objective We gave the subjects two different kinds of psychological suggestions, asked them to choose the color of the same group of tooth color shade guide.In order to discuss the result difference and provide theory basis for deciding scientific methods of tooth shade selection ability test. Methods Chose 42 prosthodontic graduate students and young dentists as subjects;each of them had over 2 years of prosthodontic clinical experience.Randomly chose 10 tablets from Vita 3D- Master tooth color shade guide （total of 29） as target tablets;Gave certainty and uncertainty psychological suggestions,made subjects do tooth color selection of target tablets under standard light source and fluorescent light source,using Vita 3D-Master shade guide.Processed data and did statistical analysis through SPSS. Results Under the condition of two different kinds of light source, the average accuracy of uncertainty psychological suggestion group was less than the certainty psychological suggestion group （P〈0.05）.Under the condition of standard light source, there was difference between male and female＇s average accuracy of uncertainty psychological suggestion group （P〈0.05）. Conclusion Psychological suggestion has influence on the results of tooth color selection.When doing tooth color selection ability test,matching test and non-matching test show different results; no matching test stands much closer to clinical situation and its results are more precious and objective.