Differences of Tooth Colorimetric Parameters L*a*b* Depended on Age
Keywords:Colorimetric Parameters, Bleaching, Esthetics, Spectrophotometer, Teeth colour
AIM: The study aimed to analyse differences in colourimetric parameters L*a*b*, depended on age.
MATERIAL AND METHODS: In this study were included 255 subjects with age interval from 20 to 49 years. The subjects were divided into three groups, as follows: in the younger group were 20 to 29 years of age, those in the middle group 30 to 39 years and older group 40 to 49 years. The overall number of analysed teeth in the intercanine sector of the maxilla was 2295. The colour of the teeth was measured using the spectrophotometer VITA Easyshade.
RESULTS: The results for differences in the colourimetric parameters in relation with age were tested with Pearson Chi-square (c2). For c 2 = 572, 87 and df = 124 there was a statistical significant difference between the ages P < 0.001.CONCLUSION: In this study, it was concluded that the parameter L* - Lightness was decreasing when age increased. In the age group, 20 to 29 years L* was 83.2, whereas in the older group of this investigation; 40 to 49 years was 79.4. In the youngest group, the parameter a* was - 0.7, whereas with increasing of age this parameter was -0.5. The values for parameter b* from the youngest to the older group were from 21.7 to 23.9.
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Ishikawa-Nagai S, Sato RR, Shiraishi A, Ishibashi K. Using a computer color-matching system in colour reproduction of a porcelain restorations. Part 3: A newly developed spectrophotometer designed for clinical application. Int J Prosthodont. 1994;7: 50-5. PMid:8179783
Berns RS. Billmeyer and Saltzman's Principles of color technology. 3rd ed. New York: John Wiley & Sons, 2000.
Ragain JC, Johnston WM. Color acceptance of direct dental restorative materials by human observers. Color Res Appl. 2000;25:278-85. https://doi.org/10.1002/1520-6378(200008)25:4<278::AID-COL8>3.0.CO;2-F
Seghi RR, Johnston WM, O'Brien WJ. Spectrophotometric analysis of color differences between porcelain systems J Prosthet Dent. 1986;56:35-40. https://doi.org/10.1016/0022-3913(86)90279-9
Jorgenson ME, Goodkind RJ. Spectrophotometric study of five porcelain shades relative to the dimension of color, porcelain thickness and repeated firings. J Prosthet Dent. 1979;42:96-105. https://doi.org/10.1016/0022-3913(79)90335-4
Yamamoto M. Development of the Vintage Halo computer color search system. Quintessence Dent Technol. 1998;22:9-26.
Paul S, Peter A, Pietrobon N, Haemmerle CHF. Visual and spectrophotometric shade analysis of human teeth. J Dent Res. 2002;81:578-82. https://doi.org/10.1177/154405910208100815 PMid:12147751
Almas K, Al-Harbi M, Al-Gunaim M. The effect of a 10% carbamide peroxide home bleaching system on the gingival health. J Am Dent Assoc. 2002;133:1076-82.
Leonard HR, Haywood VB, Philips C. Risk factors for developing tooth sensitivity and gingival irritation associated with nightguard vital bleaching. Quintessence Int. 1997; 28:527-34. PMid:9477880
Jorgensen MG, Carroll WB. Incidence of tooth sensitivity after home whitening treatment. J Am Dent Assoc. 2002;133:1076-82. https://doi.org/10.14219/jada.archive.2002.0332
Barnes DM, Kihn PW, RombergE, George D, DePaola L, Medina E. Clinical evaluation of a new 10% carbamide peroxide tooth-whitening agent Compend Contin. Educ Dent. 1998;19:968-72,977-8. PMid:10371880
Leonard RH Jr, Garland GE, Eagle JC, Caplan DJ. Safety issues when using a 16% carbamide peroxide whitening solution. J Esthet Restor Dent. 2002;14:358-67. https://doi.org/10.1111/j.1708-8240.2002.tb00178.x
Munsell AH. A color notation. Munsell Color Co. Baltimore,1981.
Albino JE, Tedesco LA, Conny DJ. Patient perceptions of dental-facial esthetics: shared concerns in orthodontics and prosthodontics. J Prosthet Dent.1984;52:9-13. https://doi.org/10.1016/0022-3913(84)90172-0
Graber LW, Lucher GW. Dental esthetic self-evaluation and satisfaction. Amer J Orthodont. 1980;77:163-73. https://doi.org/10.1016/0002-9416(80)90004-4
Condo SG. Sbiancamento dei denti come e perch-edizioni Martina. Bologna, 1999:76-79.
ten Bosch JJ, Coops JC. Tooth color and reflectance as related to light scattering and enamel hardness. J Dent Res. 1995;74:374-80. https://doi.org/10.1177/00220345950740011401 PMid:7876432
Vaarkamp J, ten Bosch JJ, Verdonschot EH. Propagation of light through human dental enamel and dentine. Caries Res. 1995;29:8-13. https://doi.org/10.1159/000262033 PMid:7867056
Goodkind RJ, Schwabacher WB. Use of fiber-optic colorimeter for in vivo color measurements of 2830 anterior teeth. J Prosthet Dent. 1987;58:535-42. https://doi.org/10.1016/0022-3913(87)90380-5
http://www.seniorhealth365.com/2012/06/25/yellow-teeth-color-and-tooth-discoloration-in-the-elderly/; 28 March 2017.
Savas S, Kavrik F, Yasa B, Kucukyilmaz E. Spectrophotometric color analysis of maxillary permanent central incisors in a pediatric population: a preliminary study. Int J Paediatr Dent. 2016 Nov 24. PMid:27882626
Odioso LL, Reno EA. The Impact of Age on Tooth Color the 76th General Session of the IADR; Nice, France; 1998;1717;24-7.
Watts A, Addy M. Tooth discoloration and staining: a review of the literature. British Dent J. 2001;190:309â€“16. PMid:11325156
Young L Jr, Glaros AG, Moore DJ, Collins JF. Assessing shade differences in acrylic resin denture and natural teeth. J Prosthet Dent. 1994;71:575-80. https://doi.org/10.1016/0022-3913(94)90440-5
Hammad IA. Intrarater repeatability of shade selections with two shade guides. J Prosthet Dent. 2003;89:50-3. https://doi.org/10.1067/mpr.2003.60 PMid:12589286
Powers JM, Sakaguchi RL. Craig's restorative dental materials. 12th ed.St.Louis: Elsevier, 2006:28-31.
van der Burgt TP, Ten Bosch JJ, Borsboom PC, Kortsmit WJ. A comparison of new and conventional methods for quantification of tooth color. J Prosthet Dent. 1990;63:155â€“62. https://doi.org/10.1016/0022-3913(90)90099-X
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