Erdal EROGLU, Uğur Burak TEMEL, Zeynep BAŞAĞAOĞLU DEMİREKİN, Osman GÜRDAL

Doğal Dişlerde Dental Prosedür Kaynakli Renk Değişiminde Dehidrasyonun Etkileri

Bu çalışma, dehidrasyona yol açan çeşitli klinik prosedürlerin doğal dişlerdeki renk değişimi üzerindeki etkilerini incelemektedir. Üst kesici dişlerin CIE L*, a* ve b* renk koordinatları, işlem öncesi ve sonrası 10, 20, 30 ve 1440 (24 saat) dakikalık aralıklarla bir spektrofotometre kullanılarak ölçüldü. Test grupları şu şekildeydi: LED ve halojen dental reflektörler altında 6 ve 15 dakika açık ağız; kontrol grupları karanlık bir ortamda 6 ve 15 dakika süreyle değerlendirildi; maksiller ölçüler kondenzasyon ve ilave tip ölçü materyalleri ile alınmıştır. İki gruplu karşılaştırmalar için Wilcoxon işaretli sıra testleri ve Mann-Whitney U testleri kullanıldı. Analizler, eşleştirilmiş ve bağımsız gruplar için Friedman ve Kruskal-Wallis H testleri ile hesaplandı. Bu testleri Bonferroni posthoc düzeltmeleri izledi. Elde edilen renk değerleri, işlemden 20 dakika sonra dehidrasyona bağlı olarak tüm gruplar için önemli L* değişikliklerini göstermektedir. Renk değişiklikleri (ΔE), algılanabilirlik eşiği (1.2>ΔE) için 30 dakika ve kabul edilebilirlik eşiği (2.7>ΔE) için 20 dakika boyunca önemliydi. Sonuçlar, ağız açılmasını gerektiren diş prosedürlerini taklit etmek için tasarlanmış deneysel protokollerin, doğal dişlerde geçici renk değişimlerine ve renk eşleştirme sırasında başarısızlığa neden olabileceğini göstermektedir.

Anahtar Kelimeler:

Dehidrasyon, Diş, Operatif diş hekimliği, Protez, Renk.

THE EFFECTS OF DEHYDRATION ON COLOR CHANGE IN NATURAL TEETH CAUSED BY DENTAL PROCEDURES

This study examines the effects of several clinical procedures that lead to dehydration on color change in natural teeth. CIE L*, a*, and b* color coordinates of maxillary incisors were measured using a spectrophotometer before and after the procedure at minute intervals of 10, 20, 30, and 1440 (24 hours). Test groups were as follows: 6 and 15 minutes of the open mouth under LED and halogen dental reflectors; control groups were evaluated in a dark environment for 6 and 15 minutes; maxillary impressions were taken with condensation and additional type impression materials. Wilcoxon signed-rank tests and Mann–Whitney U tests were used for two-group comparisons. The analyses were computed by the Friedman and Kruskal–Wallis H tests for the paired and independent groups. These tests were followed by Bonferroni posthoc corrections. Obtained color values indicate significant L* changes for all groups due to dehydration for 20 minutes after the procedure. Color changes (ΔE) were significant for 30 minutes for the perceptibility (1.2>ΔE) and 20 minutes for the acceptability threshold (2.7>ΔE). Results show that experimental protocols designed to mimic dental procedures that require mouth opening may cause temporary discoloration of natural teeth, which may cause failure during shade matching.

Keywords:

Color, Dehydration, Operative dentistry, Prosthodontics, Tooth.,

PDF

___

Balcı, Ö. P., Tuncel, İ. & Eroğlu, E. (2013). Repeatability and reliability of human eye in visual shade selection. Journal of Oral Rehabilitation, 40(12), 958-964.
Berns, R. S. (2000). Billmeyer and saltzman's principles of color technology, New York: John Wiley & Sons.
Brodbelt, R. H., O'Brien, W. J., Fan, P. L., Frazer-Dib, J. G. & Yu, R. (1981). Translucency of human dental enamel. Journal of Dental Research, 60(10), 1743-1753.
Burki, Z., Watkins, S., Wilson, R. & Fenlon, M. (2013). A randomized controlled trial to investigate the effects of dehydration on tooth color. Journal of Dentistry, 41(3), 250-257.
Chu S. J., Devigus. A. & Mieleszko A. (2004). Conventional shade matching in fundamentals of color. Shade Matching and Communication in Esthetic Dentistry, Illinois: Quintessence Publishing Company.
Derdilopoulu, F. V., Zantner, C., Neumann K. & Kielbassa A. M. (2007). Evaluation of visual and spectrophotometric shade analyses: a clinical comparison of 3758 teeth. International Journal of Prosthodontics, 20(4), 414-416.
Douglas, D. R., Steinhauer, T. J. & Gee, A. G. (2007). Intraoral determination of the tolerance of dentists for perceptibility and acceptability of shade mismatch. The Journal of Prosthetic Dentistry, 97(4), 200-208.
Dozic, A., Kleverlaan, C. J., Aartman, I. H. & Feilzer, A. J. (2004). Relation in color of three regions of vital human incisors. Dental Materials, 20(9), 832-838.
Fondriest, J. (2003). Shade matching in restorative dentistry: the science and strategies. International Journal of Periodontics and Restorative Dentistry, 23(5), 467-480.
Igiel, C., Lehmann, K. M., Ghinea, R., Weyrauch, M., Hangx, Y., Scheller, H., …Rade, D. (2017). Reliability of visual and instrumental color matching. J Esthet Restor Dent. 29(5), 303-308.
Kielbassa, A. M., Beheim-Schwarzbach, N. J., Neumann, K., Nat, R. & Zantner C. (2009). In-vitro comparison of visual and computer-aided pre- and post-tooth shade determination using various home bleaching procedures. The Journal of Prosthetic Dentistry, 101(2), 92-100.
Liberato, W. F., Barreto, I. C., Costa P. P., Almeida, C. C., Pimentel, W. & Tiossi, R. (2019). A comparison between visual, introral scanner, and spectrophotometer shade matching: A clinical study. Journal of Prosthetic Dentistry, 121(2), 271-275.
Meng, Z., Yao, X. S., Yao, H., Liang, Y., Liu, T., Li, Y., ...Lan, S. (2009). Measurement of the refractive index of human teeth by optical coherence tomography. Journal of Biomedical Optics, 14(3), 034010.
Ochiai, N. & Sato, M. (2005). Effects of surrounding brightness on visual search for safety colors. Color Research & Application, 30(6), 400-409.
Paravina, R. D., Ontiveros, J. C. & Powers, J. M. (2004). Accelerated aging effects on color and translucency of bleaching‐shade composites. Journal of Esthetic and Restorative Dentistry, 16(2), 117-126.
Paravina, R. D., Ghinea, R., Herrera, L. J., Bona, A. D., Igiel, C., Linninger, M., ...Mar Perez, M. D. (2015). Color difference thresholds in dentistry. Journal of Esthetic and Restorative Dentistry, 27, 1-9.
Pohlen, B., Hawlina, M., Sober, K. & Kopac, I. (2016). Tooth shade-matching ability between groups of students with different color knowledge. The International Journal of Prosthodontics, 29(5), 487-492.
Rawls, H. R. & Esquivel-Upshaw, J. (2013). Restorative resins in phillips' science of dental (pp.410-417). Netherlands:Elsevier.
Russel, M. D., Gulfraz, M. & Moss, B.W. (2000). In vivo measurement of colour changes in natural teeth. Journal of Oral Rehabilitation, 27(9), 786-792.
Samorodnitzky-Naveh, G. R., Geiger, S. B. & Levin, L. (2007). Patient's satisfaction with dental esthetics. The Journal of the American Dental Association, 138(6), 805-808.
Shen, C. (2013). Impression materials in phillips' science of dental materials. (pp.205-207). Netherlands: Elsevier.
Suliman, S., Sulaiman, T. A., Olafsson, V. G., Delgado, A. J., Donovan, T. E. & Heymann, H. O. (2019). Effect of time on tooth dehydration and rehydration. Journal of Esthetic and Restorative Dentistry, 31(2), 118-123.
Tarle, Z., Meniga, A., Knezevic, A., Sutalo, J., Ristic, M. & Pichler, G. (2002). Composite conversion and temperature rising using a conventional, plasma arc, and an experimental blue led curing unit. Journal of Oral Rehabilitation, 29(7), 662-667.