Effect of ocular dominance, clinical experience, and sex on the accuracy of shade selection. 2022

Anirudh Garg, and Natasha Raura, and Arpit Arora, and Ramya Shenoy, and Manuel Thomas

OBJECTIVE The study aimed to evaluate the influence of ocular dominance, clinical experience, and sex on the accuracy of visual color matching. METHODS A total of 104 selected participants consisting of dental students and dental practitioners were allocated into two groups based on their clinical experience of using visual shade matching tabs for the selection of tooth shade. Both the inexperienced (IXP), as well as experienced participants (EXP), were then asked to correctly match the shades of five tabs (A2, A3.5, B1, C2, and D3) of a commonly used visual shade guide (Vitapan Classical shade guide, VITA Zahnfabrik) that were kept constant throughout the study. The participants documented the shade of those tabs using another set of shade guide using the right eye (left eye covered), left eye (right eye covered), as well as both eyes. Test for ocular dominance was performed using the Dolman method. The results were statistically analyzed using the chi-square test with a level of significance set at < .05. RESULTS The percentage of correct shade matching with the monocular dominant vision (53%) was significantly better as compared to the monocular non-dominant vision (12%) (P < .001) or binocular vision (44%) (P < .05). Sex had an influence in shade selection (P = .031). However, clinical experience was an insignificant aspect in shade matching (P = .078). CONCLUSIONS Knowing the clinician's dominant eye can be clinically relevant, as it can influence the accuracy of shade selection, irrespective of sex and clinical experience.

UI MeSH Term Description Entries
D003116 Color The visually perceived property of objects created by absorption or reflection of specific wavelengths of light. Colors
D003118 Color Perception Mental processing of chromatic signals (COLOR VISION) from the eye by the VISUAL CORTEX where they are converted into symbolic representations. Color perception involves numerous neurons, and is influenced not only by the distribution of wavelengths from the viewed object, but also by its background color and brightness contrast at its boundary. Color Perceptions,Perception, Color,Perceptions, Color
D003815 Dentists Individuals licensed to practice DENTISTRY. Dentists, Pediatric,Dentists, Prosthetic,Dentists, Restorative,Periodontists,Prosthodontists,Dentist,Dentist, Pediatric,Dentist, Prosthetic,Dentist, Restorative,Pediatric Dentist,Pediatric Dentists,Periodontist,Prosthetic Dentist,Prosthetic Dentists,Prosthodontist,Restorative Dentist,Restorative Dentists
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D017267 Dental Prosthesis Design The plan and delineation of dental prostheses in general or a specific dental prosthesis. It does not include DENTURE DESIGN. The framework usually consists of metal. Dental Prosthesis Designs,Design, Dental Prosthesis,Designs, Dental Prosthesis,Prosthesis Design, Dental,Prosthesis Designs, Dental
D017797 Prosthesis Coloring Coloring, shading, or tinting of prosthetic components, devices, and materials. Dental Prosthesis Coloring,Coloring, Dental Prosthesis,Prosthesis Coloring, Dental,Coloring, Prosthesis
D023882 Dominance, Ocular The functional superiority and preferential use of one eye over the other. The term is usually applied to superiority in sighting (VISUAL PERCEPTION) or motor task but not difference in VISUAL ACUITY or dysfunction of one of the eyes. Ocular dominance can be modified by visual input and NEUROTROPHIC FACTORS. Eye Dominance,Eyedness,Dominance, Eye,Ocular Dominance
D024382 Professional Role The expected function of a member of a particular profession. Professional Roles,Role, Professional,Roles, Professional

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