ISSN : 0376-4672
The purpose of this study was to analyze the color distribution of the maxillary primary central and lateral incisors using a dental spectrophotometer. Color measurements of maxillary primary central and lateral incisors of 32 pediatric patients aged 2 to 6 years were performed using SpectroShade Handy Dental Type 713000 (Serial No. HDL2678, MHT, Verona, Italy) by one researcher in the same clinic. CIE L*, a*, b* values of total surfaces and cervical, middle, incisal region were recorded. L* values were higher and a* values were lower in the primary central incisors than those in primary lateral incisors, but b* values didn’t show statistical difference. L* values of the middle region were the highest, and a* and b* values decreased from the cervical region to the incisal region. There were significant color differences between each region, and ΔE* ab between each region were greater than ΔE* ab between the primary central and lateral incisors. For esthetic restorations of primary incisors, it is necessary to consider the color differences between each region rather than those between the primary central and lateral incisors.
1. Woo D, Sheller B, Williams B, Mancl L, Grembowski D. Dentists' and parents' perceptions of health, esthetics, and treatment of maxillary primary incisors. Pediatr Dent 2005;27(1):19-23.
2. Paravina RD, Majkic G, Stalker JR, Kiat-Amnuay S, Chen JW. Development of a model shade guide for primary teeth. Eur Arch Paediatr Dent 2008;9(2):74-78.
3. Horn DJ, Bulan-Brady J, Hicks ML. Sphere spectrophotometer versus human evaluation of tooth shade. J Endod 1998;24(12):786-790.
4. Hyun HK, Lee YK, Kim YJ, Kim JW, Jang KT, Kim CC, Hahn SH, Lee SH. Color distribution of maxillary primary incisors in Korean children. Color Research & Application 2010;35(2):153-158.
5. Ragain Jr. JC, Johnston WM. Color acceptance of direct dental restorative materials by human observers. Color Research & Application 2000;25(4):278-285.
6. Baik BJ, Oh KS, Kim JG, Yang ChH. The comparative study on the color of the deciduous teeth and restorative materials. J Korean Acad Pediatr Dent 2002;29(3):376-381.
7. Karamouzos A, Papadopoulos MA, Kolokithas G, Athanasiou AE. Precision of in vivo spectrophotometric colour evaluation of natural teeth. J Oral Rehabil 2007;34(8):613-621.
8. Schwabacher WB, Goodkind RJ. Three-dimensional color coordinates of natural teeth compared with three shade guides. J Prosthet Dent 1990;64(4):425-431.
9. Chu SJ, Trushkowsky RD, Paravina RD. Dental color matching instruments and systems. Review of clinical and research aspects. J Dent 2010;38(2):e2-16.
10. Paul S, Peter A, Pietrobon N, Hammerle CH. Visual and spectrophotometric shade analysis of human teeth. J Dent Res 2002;81(8):578-582.
11. Khurana R, Tredwin CJ, Weisbloom M, Moles DR. A clinical evaluation of the individual repeatability of three commercially available colour measuring devices. Br Dent J 2007;203(12):675-680.
12. Ardu S, Braut V, Di Bella E, Lefever D. Influence of background on natural tooth colour coordinates: an in vivo evaluation. Odontology 2014;102(2):267-271.
13. Oh MH, Kim DE, Lee KH, Ra JY. Study on the colors of primary incisors using digital shade analysing system. J Korean Acad Pediatr Dent 2006;33(3):429-437.
14. Kim J, Paravina R, Chen JW. In vivo evaluation of color of primary teeth. Pediatr Dent 2007;29(5):383-386.
15. Meera R, Shieh J, Muthu MS. In vivo evaluation of the color of anterior primary teeth. J Dent Child 2011;78(3):154-158.
16. Joiner A, Luo W. Tooth colour and whiteness: A review. J Dent 2017;67S:S3-S10.
17. Clark P, Powers J, Seybold S, Fay R, Johnson R. Primary teeth color in African-American, Caucasian, and Hispanic patients. J Dent Res 1999;78.
18. Haralur SB, Dibas AM, Almelhi NA, Al-Qahtani DA. The tooth and skin colour interrelationship across the different ethnic groups. Int J Dent 2014;2014:146028.
19. Khashayar G, Dozic A, Kleverlaan CJ, Feilzer AJ. Data comparison between two dental spectrophotometers. Oper Dent 2012;37(1):12-20.
20. Yi SS, Jang JH, Lee DW, Yang YM, Kim JG. Color distribution analysis of maxillary primary central incisors using a spectrophotometer. J Korean Acad Pediatr Dent 2019;46(1):93-100.
21. Llena C, Lozano E, Amengual J, Forner L. Reliability of two color selection devices in matching and measuring tooth color. J Contemp Dent Pract 2011;12(1):19-23.
22. Dozic A, Kleverlaan CJ, Aartman IH, Feilzer AJ. Relation in color of three regions of vital human incisors. Dent Mater 2004;20(9):832-838.
23. Ardu S, Feilzer AJ, Braut V, Benbachir N, Rizcalla N, Mayoral JR, Krejci I. Pilot in vivo image spectro-photometric evaluation of optical properties of pure enamel and enamel-dentin complex. Dent Mater 2010;26(7):e205-e210.
24. He WH, Park CJ, Byun S, Tan D, Lin CY, Chee W. Evaluating the relationship between tooth color and enamel thickness, using twin flash photography, cross-polarization photography, and spectrophotometer. J Esthet Restor Dent 2020;32(1):91-101.
25. McDonald R, Avery D. Dentistry for the child and adolescent. 8th edition. MO: Mosby; 2004.
