구강회복응용과학지 (Journal of Dental Rehabilitation and Applied Science)

  • 제26권3호
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  • Pages.265-271
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  • 2010
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  • 2384-4353(pISSN)
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  • 2384-4272(eISSN)
대한턱관절교합학회 (Korean Academy of Stomatognathic Function and Occlusion)
권호 표지

건조정도에 따른 자연치아의 색조비교

Comparison of Shade Changes According to Dry/Wet Condition of Tooth using Intra-Oral Colorimeter

  • 최미라 (한림대학교 의과대학 강동성심병원 치과보철과)
  • Choi, Mee-Ra (Dept. of prosthodontics, College of Medicine, Hallym University)
  • 투고 : 2010.06.15
  • 심사 : 2010.09.25
  • 발행 : 2010.09.30
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초록

심미적 보철물을 제작하는 데 있어 색조의 선택은 중요한 단계이다. 이러한 색조선택과정은 광원, 표면, 관찰자 의 능력, 주변 배경색상, 관찰각도, 명암적응력 등과 같은 다양한 원인에 의해 좌우된다. 색조를 선택하는 시점에 따라 치아의 건조정도는 달라지게 되므로 본 실험에서는 치아 건조정도가 자연치아의 색조에 미치는 영향에 대해 살펴보고자 하였다. 구강내 색조측정기를 이용하여 구강가글 즉시 측정한 군을 실험군으로 구강가글 10초 후, 1분 후, 5분 후, 30초간 건조 후 색조를 측정하여 ${\Delta}E$값을 비교하였다. 각 실험군사이 ${\Delta}E$값은 유의할 만한 차이를 보였으나 대부분의 경우 구강내에서 시각적으로 구별할 수 없는 정도의 근접치를 보였다. 실험결과 시각적인 방법으로 색조 견본을 이용하는 방법은 건조정도에 따른 색조 차이가 없는 것으로 사료되고 기계를 이용하는 경우 건조정도가 색조 선택에 유의할 만한 영향을 줄 것이라고 사료된다.

One of the most important aspect of esthetic dentistry is shade selection. Alterations to perception of color can occur as a result of numerous factors, including light source, tooth surface texture, observer's ability, surrounding colors, the angle of observation, light and dark adaptation and others. During the clinical procedures, tooth might be in dry or semi-dry condition. The purpose of this study was to compare the shade changes in wet and dry conditions of natural tooth. Groups of measurement are an initial wet condition as control, dry in 10seconds, 1 minute, 5minutes and 30seconds air dry. Using Shadeeye, color difference(${\Delta}E$) between measurements were analyzed and there were significant differences between groups. But most of the differneces were <3.7 ${\Delta}E$ unit. Such differences are below the threshold for perceivable color mismathces in intraoral condition. Shade selection with an intraoral colorimeter could be changes in dry and wet condition but there might be no significant differences in visual color mathing.

키워드

참고문헌

  1. Seghi RR, Johnston WM, O'Brien WJ. Spectrophotometric analysis of color differences between porcelain system. J Prosthet Dent 1986; 56(1):35-40 https://doi.org/10.1016/0022-3913(86)90279-9
  2. Davison SP, Myslinski NR. Shade selection by color vision-detective dental personnel. J Prosthet Dent 1990;63(1):97-101 https://doi.org/10.1016/0022-3913(90)90276-I
  3. Paravian RD. Evaluation of a newly developed visual shade matching apparatus. Int J Prosthodont 2002;15 (3):528-572
  4. Sproull RC. Color matching in dentistry. Part I. The three-dimensional nature of color. J Prosthet Dent 1973;29(4):416-424 https://doi.org/10.1016/S0022-3913(73)80019-8
  5. Sproull RC. Color matching in dentistry. Part III. Color control. J Prosthet Dent 1974;3(2):146-154
  6. Preston JD. Current status of shade selection and color matching. Quintessence Int 1985;16:47-58
  7. Preston JD. Perspectives in dental ceramics- Proceedings of the fourth international symposium on ceramics. Quintessence 1998:279-284
  8. Shillingburg HT. Fundamentals of fixed prosthondontics. 3rd edi. Quintessence 1997
  9. Van der Burgt TP, ten Bosch IJ, Borsboom PC, Kortsmit WJ. A comparison of new and conventional methods for quantification of tooth color. Prosthet Dent 1990;63(1):155-162
  10. Yap AUJ, Bhole S, Tan KBC. Shade match of toothcolored restorative materials based on a commercial shade guide. Quint Int 1995;26(10):697-702
  11. Schwabacher WB, Goodkind RJ. Three-dimensional color coordinates of natural teeth compaired with three shade guides. J Prosthet Dent 1990;64(4):425- 431 https://doi.org/10.1016/0022-3913(90)90038-E
  12. Hammad IA. Intrarater repeatability of shade selections with two shade guides. J Prosthet Dent 2003;89(1):50-53 https://doi.org/10.1067/mpr.2003.60
  13. Preston JD, Ward LC, Bobrick M. Light and lighting in the dental office. Dent Clin North Am 1978;22: 431-451
  14. Curd FM, Jasinevicius TR, Graves A, Cox V, Sadan A. Comparison of the shade matching ability of dental students using two light sources. J Prosthet Dent 2006;96(6):391-396 https://doi.org/10.1016/j.prosdent.2006.10.001
  15. Bona AD, Barrett AA, Rosa V, Pinzetta C. Visual and instrumental agreement in dental shade selection; Three distinct observer populations and shade mathing protocols. Dent Materials 2009;25:276-281 https://doi.org/10.1016/j.dental.2008.09.006
  16. Sproull RC. Color matching in dentistry. Part II: Practical applications of the organization of color. J Prosthet Dent 1973;29(4):556-566
  17. O'Brien WJ, Boenke KM, Groh CL. Coverage errors of two guides. Int J Prosthodont 1991;4(1):45-50
  18. O'Brien WJ, Johnston WM, Fanian F. Double-layer color effects in porcelain systems. J Dent Res 1985; 64(5):940-943
  19. Paravina RD, Power JM, Fay RM. Color comparison of two shade guides. Int J Prosthodont 2002;15(1): 73-78
  20. Hasegawa A, Ikeda I, Kawaguchi S. Color and translucency of in vivo natural central incisors. J Prosthet Dent 2000;83(4):418-423 https://doi.org/10.1016/S0022-3913(00)70036-9
  21. Douglas RD, Brewer JD. Variability of porcelain color reproduction by commercial laboratories. J Prosthet Dent 2003;90(4):339-346 https://doi.org/10.1016/S0022-3913(03)00513-4
  22. Tung FF, Goldstein GR, Jang S, Hittleman E. The repeatability of an intraoral dental colorimeter. J Prosthet Dent 2002;88(6):585-590 https://doi.org/10.1067/mpr.2002.129803
  23. Berns RS, Billmeyer FW Jr, Saltzman M. Billmeyer and Saltzman's principles of color technology. 3rd ed. New York: John Wiley and Sons. 2000: 31-105
  24. Ruyter IE, Niler K, Moller B. Color stability of dental composite resin materials for crown and bridge veneers. Dent Mater 1987;3:246-251 https://doi.org/10.1016/S0109-5641(87)80081-7
  25. Johnston WM, Kao EC. Assessment of appearance match by visual observation and clinical colorimetry. J Dent Res 1989;68(5):819-822 https://doi.org/10.1177/00220345890680051301
  26. Stock JT. The Duboscq colorimeter and its inventor. J Chem Educ. 1994;71:967-970 https://doi.org/10.1021/ed071p967
  27. Dancy WK, Yaman P, Dennison JB, O'Brien WJ, Razoog ME. Color measurements as quality criteria for clinical shade matching of porclain crowns. J Esthet Restor Dent 2003;15:114-121 https://doi.org/10.1111/j.1708-8240.2003.tb00327.x
  28. Klemetti E, Matela AM, Haag P, Kononen M. Shade selection performed by novice dental professionals and colorimeter. J Oral Rehab. 2006;33:31-35 https://doi.org/10.1111/j.1365-2842.2006.01531.x
  29. Paul S, Peter A, Pietrobon N, Hammerle CH. Visual and spectrophotometric shade analysis of human teeth. J Dent Res 2002;81(8):578-582 https://doi.org/10.1177/154405910208100815
  30. Paul SJ, Peter A, Rodoni L, Pietrobon N. Conventional visual vs spectrophometric shade taking for porcelain-fused-to metal crowns: a clinical comparison. Int J Periodontics Restorative Dent 2004;24:222-231
  31. Kuehni RG, Marcus RT. An experiment in visual scaling of small color differences. Color Res Appl 1979;4:83-91
  32. Douglas RD. Precision of in vivo colorimetric assessments of teeth. J Prosthet Dent 1997;77(5): 464-470 https://doi.org/10.1016/S0022-3913(97)70137-9
  33. Goodkind RJ, Schwabacher WB. USe of a fiber-optic colorimeter for in vivo color measurements of 2830 anterior teeth. J Prosthet Dent 1987;58(5):535-542 https://doi.org/10.1016/0022-3913(87)90380-5
  34. ten Bosch JJ, Coops JC. Tooth color and reflectance as related to light scattering and enamel hardness. J Dent Res 1995;74(2): 374-380
  35. Dawes C. Rhythms in salivary flow rate and composition. Int J Chronobiol 1974;2:253-279