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:: Volume 24, Issue 2 (4-2012) ::
J Islam Dent Assoc Iran 2012, 24(2): 60-68 Back to browse issues page
Evaluation of Tooth Color Distribution in 20 to 30-Year-Old Patients of Shahid Beheshti University Related Centers in 1389
Zahra Jaberi-Ansari1, Keivan Saati 2
1- Associate Professor, Department of Operative Dentistry, School of Dentistry, Shahid Beheshti University of Medical Sciences. Tehran, Iran
2- Assistant Professor, Department of Operative Dentistry, School of Dentistry. Azad University. Tehran, Iran , keivan.saati@gmail.com
Abstract:   (8118 Views)
Background and Aim: Tooth color assessing is very important in esthetic dentistry. The aim of this article was to study tooth color prevalence of 20-30-year-old patients and also presentation of a simple method for color assessment .

Materials and Methods : One thousand fifty nonsmoker volunteers (501 men). In a light, distance and angle constant condition the left maxillary incisors were photographed with a digital camera (Canon G9) using a retractor. The pictures were studied with Adobe Photoshop CS5 software. The color of the middle 1/9 of the tooth was measured in L*a*b* system. In the exact above condition vita pan classical shade guide was photographed in direction of neutral background. These pictures were studied with Adobe Photoshop CS5 and L*a*b* average was measured for the middle 1/9 of each sample. After measurement of ∆E* for each person and vita pan classical shade guide, minimum ∆E* was chosen for each tooth as the color of that tooth. Finally, the effect of colored liquid drinks was assessed .

Results : The most popular findings were A3.5 (16.85%) A3 (14.85%) and B1, B2 (9.8%). The results of this study showed that the L* average in nonsmokers who drank colored liquids more than twice a day in comparison to noncolored liquid users was lower. The a* and b* average in this group was higher than noncolored liquid users .

Conclusion : The most common findings were A3.5 (16.85%) A3 (14.85%) B1, B2 (9 . 8%). Tooth color assessment with a digital camera and computerized study is simple and cheap but very sensitive .

Keywords: Spectrophotometry, Colorimetry, Dental photography
Full-Text [PDF 413 kb]   (1832 Downloads)    
Type of Study: Orginal | Subject: Restorative Dentistry
References
1. Irfan A: Protocols for predictable aesthetic dental restorations. 1 st ed. UK: Blackwell, Munksgaard; 2006, 77-96.
2. Paravina R, Powers J. Esthetic Color training in dentistry. 1st ed. USA: Mosby; 2004, 1-6.
3. Silbernagel S. Physiology of the eyes. 2 nd ed. Germany (Stuttgart): Thieme; 1988, 308-313.
4. Gnan C. Science of colors. 1 st ed. USA: Quintessence Publishing Co. Inc; 1994, 20(3): 383-397.
5. Roberson TM, Hyman HO, Swift EJ. Sturte-vant's art & Science of operative dentistry. 5 th ed. USA: Mosby; 2006, Chapter 4.
6. Demetron Shade light, an ideal light for shade taking. Catalogue hand book. 1 st ed. Switzer-land: Kerr Hawe SA. Co; 2010.
7. Elter A, Caniklioglu B, Deger S, Ozen J. The reliability of digital cameras for color selection. Int J Prosthodont. 2005 Sep-Oct; 18(5):438-40.
8. Bengel WM. Digital photography and assess-ment of therapeutic results after bleaching pro-cedures. J EsthetRestor Dent. 2003 Dec; 15(3): 521-32.
9. Paravina RD, Majkic G, Imai FH, and Powers JM. Optimization of tooth color and shade guide design. J Prosthod. 2007 Apr; 16(2):269-276.
10. Westland S. Review of the CIE system of colorimetry and its use in dentistry. J EsthetRes-to Dent. 2003 Dec; 15 (Supple 1):S5-S12.
11. Albers HF. Tooth colored restoration princi-ples and techniques. 9 th ed. USA: BC Deker-Inc; 2002, Chapter 5.
12. Suminit JB, Robbins WJ, Hilton TJ, Schwartz RS. Fundamental of Operative dentis-try a contemporary approach. 3 rd ed. USA: Quintessence Publishing Co. Inc; 2006.
13. Schwabacher WB, Goodkind RJ. Tree-dimensional color coordinates of natural teeth compared with three shade guides. J Prosthet Dent. 1990 Oct; 64(5):425-431.
14. Tung OH, Lai YL, Chou IC, and Lee SY. Development of digital shade guides for color assessment using a digital camera with ring flashes. Clin Oral Investing. 2010 Jan; 5(1):265-71.
15. Smith RN, Collins LZ, Naeeni M. The invi-tro and invivo validation of a mobile non-contact camera-based digital imaging system for tooth color measurement. J Dent. 2008 Dec; 36Suppl 1:S15-20.
16. Wee AG, Lindsey DT, Kuo SH, Johnston WM. Color accuracy of commercial digital cameras for use in dentistry. Dent Mater. 2006 Jun; 22(8):553-559.
17. Joiner A. Tooth Color: A review of the liter-ature. J Dent. 2004 Nov; 32(Supple)3-12.
18. Douglas RD. Precision of in vivo colorimet-ric assessments of teeth. J Prosthet Dent. 1997 May; 77(2):464-70.
19. Cho BH, Lim YK, Lee Y. Comparison of the color of natural teeth measured by a color-imeter and Shade Vision System. Dent Mater. 2007 Oct; 23(10):1307-1312.
20. Tung FF, Goldstein GR, Jang S, Hittelman E. The repeatability of an intraoral dental colorim-eter. J Prosthet Dent. 2002 Dec; 88(6):585-590.
21. Calglar A, Yamanel K, Gulsahi K. Could digital imaging bean alternative for digital color-imeters? Clin Oral Invest. 2010 Dec; 14(6):713-8.
22. Goldstein GR, Schmitt GW. Repeatability of a specially designed intraoral colorimeter. J Prosthet Dent. 1993 Jun; 69(3):616-9.
23. Dozic A, Klevelaan CJ, EL-Zohairy A. Per-formance of five commercially available tooth color-measuring devices. J Prosthod 2007 Mar- Apr; 16(2):93-100.
24. Kim BJ, YU B, and Lee YK. Shade distribu-tion of indirect resin composites compared with a shade guide: J Dent. 2008 Oct; 36:1054-1060.
25. Samra AP, Pereira SK, Delgado LC, and Borges CP. Color stability evaluation of aesthet-ic restorative materials. Braz Oral Res. 2008 Jul -Sep; 22(3):205-10.205.
26. Fontes ST, Fernandez MR, Moura CM, Meireles SS. Color stability of nanofill compo-site: Effect of different immersion media. J Appl Oral Sei. 2009 May; 17(5):388-91.
27. Delfino CS, Chinelatti MA, Carrasco-Gverisoli LD, Batista AR Froner IC, and Palma-Dibb RG: Effectiveness of home bleaching agents in discolored teeth and influence on enamel micro hardness. J Appl Oral Sei. 2009 July-Aug.; 17(4):284-8.
28. Lath DL, Johnson C, Smith RN, Brook AH. Measurement of stain removal in vitro: A com-parison of two instrumental methods. Int J Dent Hyg. 2006 Aug; 4(3):129-32.
29. Cal E, Guneri P, Kose T. Comparison of dig-ital and spectrophotometric measurements of color shade guides. J Oral Rehabil. 2006 Mar; 33 (3):221-8.
30. Lath DL, Smith RN, Guan YH, Karmo M, and Brook AH. Measurement of stain on ex-tracted teeth using spectrophotometery and digi-tal image analysis. Int J Dent Hyg. 2007 Aug; 5(3): 274-9.
31. Segi RR, Johnston WM. Spectrometric anal-ysis of color differences between porcelain sys-tems. J Dent Res. 1986 Jul; 56(1):35-40.
32. Van-der-Burgt TP, Ten-Bosch JJ, Borsboom PC. A new method for matching tooth colors with color standards. J Dent Res. 1985 May; 64 (9):837-841.
33. Browning WD. Use of shade guides for col-or measurement in tooth-bleaching studies. J EsthetRestor Dent. 2003 Dec; 15 Suppl 1:S13-20.
34. Barna GJ, Tayler JW, King GE. The influ-ence of selected light intensities on color per-ception within the color range of natural teeth. J Prosth Dent. 1981 Oct; 46(4):450-3.
35. Donahue JL, Goodkind RJ. Shade color dis-crimination by men and women. J Prosth Dent. 1991 May; 65(5):699-703.
36. Luo W, Westland S, Brunton P, et al: Com-parison of the ability of different color indices to assess changes in tooth whiteness. J Dent. 2007 Feb; 35(2):109-16.
37. Jasinevicius TR, Curd FM, Schilling L, Sadan A. Shade-matching abilities of dental laboratory technicians using a commercial light source. J Prosthod. 2009 Jan; 18(1):60-3.
38. Schropp L. Shade matching assisted by digi-tal photography and computer software. J Pros-thod3. 2009 Apr; 18(3):235-41.
39. Erbshaeuser M. A new method for the ob-jective colorimetry with digital photography. [Thesis]. France: Universal Publishers; 2001.
40. XIAO J, Zhou XD, ZHU WC. The preva-lence of tooth discoloration and the self-satisfaction with tooth color in a Chinese urban population. J Oral Rehabil. 2007 May;34(5):351-60.
41. Guler A, Yilmaz F. Effect of different drinks on stain ability of resin composite provi-sional restorative materials. J Prosthet Dent. 2005 Aug; 94(2):118-24.
42. Bagheri R, Burrow MF. Influence of food-simulating solutions and surface finish on sus-ceptibility to staining of esthetic restorative ma-terials. J Dent. 2005 May; 33(5):389-398.
43. Yazici AR, Celik C, Dayangac B. The effect of curing units and staining solutions on the color stability of resin composites. Oper Dent. 2007 Nov-Dec;32(6):616-22.
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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 (2) :60-68
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Volume 24, Issue 2 (4-2012) Back to browse issues page
Journal of Islamic Dental Association of Iran

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