The korean journal of orthodontics (대한치과교정학회지)

The Korean Association Of Orthodontists (대한치과교정학회)
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Colorimetric evaluation of white spot lesions following external bleaching with fluoridation: An in-vitro study

  • Choi, Yoon-Young (Major in Dentistry, Department of Medicine, Graduate School of Korea University) ;
  • Lee, Dong-Yul (Department of Dentistry, Korea University College of Medicine) ;
  • Kim, Yae-Jin (Department of Orthodontics, Korea University Guro Hospital)
  • Received : 2017.12.19
  • Accepted : 2018.05.12
  • Published : 2018.11.01
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Abstract

Objective: This study was performed to investigate the effects of external tooth bleaching with flouridation on the appearance of white spot lesions (WSLs) in vitro. Methods: In total, 125 bracket-bonded bovine incisor enamel blocks with artificial WSLs were randomly divided into a control group and four treatment groups (home bleaching, home bleaching + fluoridation, in-office bleaching, and in-office bleaching + fluoridation). A spectroradiometer (SR) and digital images (DIs) were used to evaluate colorimetric parameters (Commission Internationale l'Eclairage $L^*a^*b^*$) for all specimens. Color measurements were obtained before WSL formation (T1), after WSL formation (T2), and after completion of the external tooth bleaching treatment (T3). Results: The SRbased color change after bleaching was significantly greater in the treatment groups than in the control group (p < 0.05). SR-based lightness ($L^*$) and redgreen ($a^*$) values were significantly higher at T2 than at T1 (p < 0.001), with no significant changes in yellow-blue ($b^*$) values. At T3, SR-based $L^*$ values had increased while $a^*$ and $b^*$ values had decreased in the treatment groups (p < 0.001). The DI-based color difference between the sound enamel and WSL areas (DE*DI) increased significantly from T1 to T2 in all groups (p < 0.001) and significantly decreased from T2 to T3 in the treatment groups (p < 0.001). No significant differences in ${\Delta}E^*DI$ at T3 were shown between the four treatment groups (p > 0.05). Conclusions: The findings of this study suggested that external tooth bleaching with fluoridation can alleviate the conspicuity of WSLs.

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References

  1. Ogaard B, Rolla G, Arends J. Orthodontic appliances and enamel demineralization. Part 1. Lesion development. Am J Orthod Dentofacial Orthop 1988;94:68-73. https://doi.org/10.1016/0889-5406(88)90453-2
  2. Gorelick L, Geiger AM, Gwinnett AJ. Incidence of white spot formation after bonding and banding. Am J Orthod 1982;81:93-8. https://doi.org/10.1016/0002-9416(82)90032-X
  3. Artun J, Thylstrup A. A 3-year clinical and SEM study of surface changes of carious enamel lesions after inactivation. Am J Orthod Dentofacial Orthop 1989;95:327-33. https://doi.org/10.1016/0889-5406(89)90166-2
  4. Sonesson M, Bergstrand F, Gizani S, Twetman S. Management of post-orthodontic white spot lesions: an updated systematic review. Eur J Orthod 2017;39:116-21.
  5. Kim Y, Son HH, Yi K, Ahn JS, Chang J. Bleaching effects on color, chemical, and mechanical properties of white spot lesions. Oper Dent 2016;41:318-26. https://doi.org/10.2341/15-015-L
  6. Yetkiner E, Wegehaupt F, Wiegand A, Attin R, Attin T. Colour improvement and stability of white spot lesions following infiltration, micro-abrasion, or fluoride treatments in vitro. Eur J Orthod 2014;36:595-602. https://doi.org/10.1093/ejo/cjt095
  7. Hong HS, Kim HY, Sung JY, Cho JH, Kim SC. Effect of remineralization and inhibition to demineralization after fluoride gel or hydroxyapatite paste application on stripped enamel. Korean J Orthod 2010;40:212-26. https://doi.org/10.4041/kjod.2010.40.4.212
  8. Willmot D. White spot lesions after orthodontic treatment. Semin Orthod 2008;14:209-19. https://doi.org/10.1053/j.sodo.2008.03.006
  9. Knosel M, Attin R, Becker K, Attin T. External bleaching effect on the color and luminosity of inactive white-spot lesions after fixed orthodontic appliances. Angle Orthod 2007;77:646-52. https://doi.org/10.2319/060106-224
  10. Bussadori SK, do Rego MA, da Silva PE, Pinto MM, Pinto AC. Esthetic alternative for fluorosis blemishes with the usage of a dual bleaching system based on hydrogen peroxide at 35%. J Clin Pediatr Dent 2004;28:143-6.
  11. Basting RT, Rodrigues Junior AL, Serra MC. The effect of 10% carbamide peroxide bleaching material on microhardness of sound and demineralized enamel and dentin in situ. Oper Dent 2001;26:531-9.
  12. Berger SB, Pavan S, Dos Santos PH, Giannini M, Bedran-Russo AK. Effect of bleaching on sound enamel and with early artificial caries lesions using confocal laser microscopy. Braz Dent J 2012;23:110-5. https://doi.org/10.1590/S0103-64402012000200004
  13. Attin T, Kielbassa AM, Schwanenberg M, Hellwig E. Effect of fluoride treatment on remineralization of bleached enamel. J Oral Rehabil 1997;24:282-6. https://doi.org/10.1046/j.1365-2842.1997.d01-291.x
  14. Jo SY, Chong HJ, Lee EH, Chang NY, Chae JM, Cho JH, et al. Effects of various toothpastes on remineralization of white spot lesions. Korean J Orthod 2014;44:113-8. https://doi.org/10.4041/kjod.2014.44.3.113
  15. Livas C, Kuijpers-Jagtman AM, Bronkhorst E, Derks A, Katsaros C. Quantification of white spot lesions around orthodontic brackets with image analysis. Angle Orthod 2008;78:585-90. https://doi.org/10.2319/0003-3219(2008)078[0585:QOWSLA]2.0.CO;2
  16. Issa AI, Preston KP, Preston AJ, Toumba KJ, Duggal MS. A study investigating the formation of artificial sub-surface enamel caries-like lesions in deciduous and permanent teeth in the presence and absence of fluoride. Arch Oral Biol 2003;48:567-71. https://doi.org/10.1016/S0003-9969(03)00095-5
  17. Burwell AK, Litkowski LJ, Greenspan DC. Calcium sodium phosphosilicate (NovaMin): remineralization potential. Adv Dent Res 2009;21:35-9. https://doi.org/10.1177/0895937409335621
  18. International Commission on Illumination. Colorimetry, CIE technical report 15. 3rd ed. Vienna: CIE Central Bureau; 2004.
  19. Lunardi N, Correr AB, Rastelli AN, Lima DA, Consani RL. Spectrophotometric evaluation of dental bleaching under orthodontic bracket in enamel and dentin. J Clin Exp Dent 2014;6:e321-6.
  20. Joiner A. The bleaching of teeth: a review of the literature. J Dent 2006;34:412-9. https://doi.org/10.1016/j.jdent.2006.02.002
  21. Leonard RH, Sharma A, Haywood VB. Use of different concentrations of carbamide peroxide for bleaching teeth: an in vitro study. Quintessence Int 1998;29:503-7.
  22. Johnston WM, Kao EC. Assessment of appearance match by visual observation and clinical colorimetry. J Dent Res 1989;68:819-22. https://doi.org/10.1177/00220345890680051301
  23. Flaitz CM, Hicks MJ. Effects of carbamide peroxide whitening agents on enamel surfaces and carieslike lesion formation: an SEM and polarized light microscopic in vitro study. ASDC J Dent Child 1996;63:249-56.
  24. Benson PE, Parkin N, Millett DT, Dyer FE, Vine S, Shah A. Fluorides for the prevention of white spots on teeth during fixed brace treatment. Cochrane Database Syst Rev 2004;(3):CD003809.
  25. Guzman-Armstrong S, Chalmers J, Warren JJ. Ask us. White spot lesions: prevention and treatment. Am J Orthod Dentofacial Orthop 2010;138:690-6. https://doi.org/10.1016/j.ajodo.2010.07.007
  26. Joiner A. Tooth colour: a review of the literature. J Dent 2004;32 Suppl 1:3-12.
  27. Bolt RA, Bosch JJ, Coops JC. Influence of window size in small-window colour measurement, particularly of teeth. Phys Med Biol 1994;39:1133-42. https://doi.org/10.1088/0031-9155/39/7/006
  28. Buzalaf MA, Hannas AR, Magalhaes AC, Rios D, Honorio HM, Delbem AC. pH-cycling models for in vitro evaluation of the efficacy of fluoridated dentifrices for caries control: strengths and limitations. J Appl Oral Sci 2010;18:316-34. https://doi.org/10.1590/S1678-77572010000400002

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