Journal of Isfahan Dental School

Evaluation the Prevalence of Maxillary Lateral Tooth Color with Three Different Color Guidance Systems

Document Type : مقاله‌های پژوهشی

Authors

1 Dentistry Graduate Student, School of Dentistry, Kermanshah Branch, Kermanshah University of Medical Sciences, Kermanshah, Iran

2 Assistant Professor, Department of Prosthetic Dentistry, School of Dentistry, Isfahan (Khorasgan) Branch, Islamic Azad University, Isfahan, Iran

3 Postgraduate Student, Department of Prosthetic Dentistry, School of Dentistry, Isfahan (Khorasgan) Branch, Islamic Azad University, Isfahan, Iran

Abstract

Introduction: Due to importance of color determination in the success of cosmetic treatments, we decide to evaluate the prevalence of lateral maxillary incisor color with different systems and compare results with each other, by the hypothesis that there is no difference between the color determination of prosthodontist, dental technician and dental student.
Materials and Methods: This cross - sectional study was performed in 2016 on the maxillary lateral teeth of 120 patients came to Kermanshah dental school aged between 20-30 years. The teeth color of each patient was reported by three observers using Vita classic, 3D-master color samples and finally spectrophotometer. Then parameters L, a, b and ΔE were calculated for each patient. Data were analyzed by the use of SPSS 16 with Friedman (α = 0.05) and Wilcoxon (α = 0.017) statistical tests.
Results: The most common color observed in the Vita classic was A2 (25.83%) and in the 3D-master color sample was 2R2.5 (21.67%). The calculated ΔE of the prosthodontist in Vita classic color samples was less than the other observers (p value < 0.001). In 3D-master, ΔE of dental technician was lower than dental student (p value = 0.016). In other cases, the difference was not significant.
Conclusion: The most common tooth color in the study population with Vita classic was A2 and with 3D-master was 2R2.5. The accuracy of color determination by prosthodontist in Vita classic was higher than of the technician and the student. In 3D-master, dental technician was more precise than the student.
Keywords: Color perception, Shade, Color

1.Amirian K, Rezaei M, Azarpour A, Judi R. Evaluation of maxillary central incisors color frequency by two shade guides in patients referring to prosthodontics department of Babol Dental Faculty. J Shahid Sadoughi Univ 2015; 23(3): 2013-20. [In Persian].
2.Jaberi-Ansari Z, Saati K. Evaluation of tooth color distribution in 20 to 30-year-old patients of Shahid Beheshti university related centers in 1389. J Islam Dent Assoc Iran 2012; 24(1): 60-8. [In Persian].
3.Paravina RD. Performance assessment of dental shade guides. J Dent 2009; 37(Suppl 1): e15-e20.
4.Kim-Pusateri S, Brewer JD, Dunford RG, Wee AG. In vitro model to evaluate reliability and accuracy of a dental shade-matching instrument. J Prosthet Dent 2007; 98(5): 353-8.
5.Okubo SR, Kanawati A, Richards MW, Childressd S. Evaluation of visual and instrument shade matching. J Prosthet Dent 1998; 80(6): 642-8.
6.Lagouvardos PE, Fougia AG, Diamantopoulou SA, Polyzois GL. Repeatability and interdevice reliability of two portable color selection devices in matching and measuring tooth color. J Prosthet Dent 2009; 101(1): 40-5.
7.AlSaleh S, Labban M, AlHariri M, Tashkandi E. Evaluation of self shade matching ability of dental students using visual and instrumental means. J Dent 2012; 40(Suppl 1): e82-e7.
8 .Nordgarden H, Jensen JL, Storhaug K. Reported prevalence of congenitally missing teeth in two Norwegian counties. Community Dent Health 2002; 19(4): 258-61.
9. Pinho T, Tavares P, Maciel P, Pollmann C. Developmental absence of maxillary lateral incisors in the Portuguese population. Eur J Orthod 2005; 27(5): 443-9.
10.Qamar R, Imtiaz A, Kamran M. Maxillary lateral incisor agenesis: A review of literature. Pakistan Ortho J 2012; 4(2): 69-72.
11. Ghahraman La, Gouharian R, Esmaeili He, Shah As. Evaluation of shade selection repeatability with vita-classic & 3dmaster by two groups of male and female students of Mashhad Dental School. J Mashhad Dent Sch 2008; 32(3): 213-20. [In Persian].
12.Rosenstiel SF, Land MF, Fujimoto J. Contemporary fixed prosthodontics. 5th ed. Missouri, US: Mosby; 2016.
13.Ruyter IE, Nilner K, Möller B. Color stability of dental composite resin materials for crown and bridge veneers. Dent Matre 1987; 3(5): 246-51.
14.Dozić A, Kleverlaan CJ, El‐Zohairy A, Feilzer AJ, Khashayar G. Performance of five commercially available tooth color‐measuring devices. J Prosthodont 2007; 16(2): 93-100.
15. Albers HF. Tooth-colored restoratives: Principles and techniques. 9th ed. Shelton, Connecticut: PMPH USA, Ltd; 2002.
16. Guo H, Wang F, Feng H, Gou X, Li K, Wu T, et al. [The investigation of color selection of 4340 cases of ceramic restorations]. Hua Xi Kou Qiang Yi Xue Za Zhi 2000; 18(3): 174-7. [In Chinese]
17. Elamin HO, Abubakr NH, Ibrahim YE. Identifying the tooth shade in group of patients using Vita Easyshade. Eur J Dent 2015; 9(2): 213-7.
18. Roberson T, Heymann H, Swift E. Sturtevant's art & science of operative dentistry. 5th ed. Amsterdam, Netherlands: Elsevier; 2006. 140: 174-82.
19. Summitt JB, Robbins JW, Hilton TJ, Schwartz RS, Dos Santos J Jr. Fundamentals of operative dentistry: a contemporary approach. 3rd ed. New Malden, UK: Quintessence Pub Co; 2006.
20.Bayindir F, Kuo S, Johnston WM, Wee AG. Coverage error of three conceptually different shade guide systems to vital unrestored dentition. J Prosthet Dent 2007; 98(3): 175-85.
21. Rodrigues S, Shetty SR, Prithviraj D. An evaluation of shade differences between natural anterior teeth in different age groups and gender using commercially available shade guides. J Indian Prosthodont Soc 2012; 12(4): 222-30.
22. Ansari Lari H, Sazvar M R, Badri M, Esmaili F, Aghaha S. Comparison the shade of upper central incisor with three shade guides. J Res Dent Sci 2010, 7(3): 46-52. [In Persian].
23.Gomez-Polo C, Gomez-Polo M, de Parga JAMV, Vinuela AC. Study of the most frequent natural tooth colors in the Spanish population using spectrophotometry. J Adv Prosthodont 2015; 7(6): 413-22.
24. Hammad IA. Intrarater repeatability of shade selections with two shade guides. J Prosth Dent 2003; 89(1): 50-3.
25. Della Bona A, Barrett AA, Rosa V, Pinzetta C. Visual and instrumental agreement in dental shade selection: three distinct observer populations and shade matching protocols. Dent Mater 2009; 25(2): 276-81.
Journal of Isfahan Dental School
Volume 16, Issue 4 - Serial Number 4
January 2021
Pages 448-456