RESEARCH PAPER
Effect of background colour on visual shade-matching precision
1
Zakład Stomatologii Zintegrowanej, Warszawski Uniwersytet Medyczny
Department of Integrated Dentistry, Warsaw Medical University
2
Studenckie Koło Naukowe przy Zakładzie Stomatologii Zintegrowanej, Warszawski Uniwersytet Medyczny
Student Research Group at the Department of Integrated Dentistry
Submission date: 2021-10-11
Final revision date: 2021-10-20
Acceptance date: 2021-10-30
Publication date: 2021-12-15
Corresponding author
Katarzyna Małgorzata Brus- Sawczuk
Zakład Stomatologii Zintegrowanej, Warszawski Uniwersytet Medyczny Department of Integrated Dentistry, Warsaw Medical University
Zakład Stomatologii Zintegrowanej, Warszawski Uniwersytet Medyczny Department of Integrated Dentistry, Warsaw Medical University
Prosthodontics 2021;71(4):355-364
KEYWORDS
TOPICS
ABSTRACT
Background:
Colour matching to tooth shade is important during conservative and prosthetic treatment to obtain an aesthetic effect. Influential factors are gender, age, experience, visual defects, light and the background (BG).
Aim:
The aim of this study was to determine the influence of gender and age of the subjects, and the BG colour, on colour matching precision.
Material and methods:
Fifty people were asked to match compatible colours from three VITA Classical shade guides into pairs, on five BGs. The study was conducted in identical artificial lighting conditions. Statistical analysis was performed with ANOVA Kruskal-Wallis, U Mann-Whithey, and chi-square tests, with p<0,05.
Results:
The examined group consisted of 35 women (70%) and 15 men (30%), aged 19-31 (M=23,3; SD=1,85). The proportion of correctly recognized shades was 51.1%. Depending on the BG colour, correct recognition ranged from 43.4% (red BG) to 62.6% (beige BG). Differences between the level of recognition on different BG were statistically significant (p <0.0001). Women more effectively recognized the unique shades, (average 53.0% correct), whereas men achieved 46.3% (p=0,094). Fifth year students performed significantly better than their younger colleagues (p=0,029). Both genders made the best matching on a beige BG. The worst results were shown by women on black and red BG (p=0,0018), and by men on red and green BG (p=0,0031).
Conclusions:
The best BG colour for matching shades is beige. Colour matching on a red BG (lips or tongue) should be avoided. Gender has no significant impact on precise colour matching.
Colour matching to tooth shade is important during conservative and prosthetic treatment to obtain an aesthetic effect. Influential factors are gender, age, experience, visual defects, light and the background (BG).
Aim:
The aim of this study was to determine the influence of gender and age of the subjects, and the BG colour, on colour matching precision.
Material and methods:
Fifty people were asked to match compatible colours from three VITA Classical shade guides into pairs, on five BGs. The study was conducted in identical artificial lighting conditions. Statistical analysis was performed with ANOVA Kruskal-Wallis, U Mann-Whithey, and chi-square tests, with p<0,05.
Results:
The examined group consisted of 35 women (70%) and 15 men (30%), aged 19-31 (M=23,3; SD=1,85). The proportion of correctly recognized shades was 51.1%. Depending on the BG colour, correct recognition ranged from 43.4% (red BG) to 62.6% (beige BG). Differences between the level of recognition on different BG were statistically significant (p <0.0001). Women more effectively recognized the unique shades, (average 53.0% correct), whereas men achieved 46.3% (p=0,094). Fifth year students performed significantly better than their younger colleagues (p=0,029). Both genders made the best matching on a beige BG. The worst results were shown by women on black and red BG (p=0,0018), and by men on red and green BG (p=0,0031).
Conclusions:
The best BG colour for matching shades is beige. Colour matching on a red BG (lips or tongue) should be avoided. Gender has no significant impact on precise colour matching.
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| eISSN: | 2391-601X |
| ISSN: | 0033-1783 |
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