Clinical Color Match of Porcelain Visual Shade-Matching Systems
Autor: | Edith Y. Kang, Deepali Jere, Frank M. Beck, Alvin C. Wee |
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Rok vydání: | 2005 |
Předmět: |
Adult
Male Engineering Color vision medicine.medical_treatment Replication Process Color Dentistry Prosthodontics Public health service medicine Humans Statistical analysis Maxillary central incisor Dental Enamel General Dentistry Shade matching Aged Prosthesis Coloring business.industry Repeated measures design Middle Aged Dental Porcelain Incisor Dental Prosthesis Design Patient Satisfaction Female business Color Perception Dental Alloys |
Zdroj: | Journal of Esthetic and Restorative Dentistry. 17:351-357 |
ISSN: | 1708-8240 1496-4155 |
DOI: | 10.1111/j.1708-8240.2005.tb00468.x |
Popis: | Background: Accuracy of the total color replication process has not been clinically evaluated for various porcelain visual shade-matching systems. Purpose: The purpose of this study was to evaluate the final color replication process of three porcelain visual shade-matching systems. Subjects' natural dentition was compared with labora- tory-fabricated individualized porcelain shade tabs. Materials and Methods: Shade matches of 10 subjects' incisors were obtained using three different porcelain visual shade-matching systems. Commercial laboratories fabricated one corresponding individualized porcelain shade tab for each incisor per visual shade-matching system selection. Color-match evaluations of the fabricated individualized porcelain shade tabs to the correspond- ing teeth were completed by prosthodontists' consensus and by subjects' self-evaluation using the US Public Health Service criteria. Statistical analysis was carried out on the combined evaluations with logistic regression and the Generalized Estimating Equation for repeated measures. Results: The Vitapan 3D Master/Omega 900 system (Vident Inc., Brea, CA, USA) was signifi- cantly more likely than the Vita Lumin Vacuum/VMK 68 system (Vident Inc.) to obtain a clini- cally acceptable color match (odds ratio (OR) = 6.31; 95% CI = 1.24-32.07). The likelihood of obtaining a clinically acceptable color match through subjects' self-evaluation was found to be sig- nificantly higher compared with prosthodontists' consensus (OR = 2.75; 95% CI = 1.27-5.94). Conclusions: Within the limits of this preliminary study, significant differences in clinical accept- ability were seen between the color matches of the fabricated individualized porcelain shade tabs from different systems and subjects' central incisors. Subjects' range of acceptability was much broader compared with that of the prosthodontists in assessing the color match of the fabricated porcelain shade tabs. CLINICAL SIGNIFICANCE The use of certain porcelain visual shade-matching systems may result in a clinically acceptable color match of the final restoration more readily than the use of other systems. Color-match evalu- ation of final restorations should be accomplished through a consensus between prosthodontists and patients, given the difference in thresholds of acceptability. |
Databáze: | OpenAIRE |
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