European Oral Research

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DOI :10.17096/jiufd.28587   IUP :10.17096/jiufd.28587    Full Text (PDF)

EFFECTS OF THERMOCYCLING AND VARIOUS DRINKS ON THE COLOR STABILITY OF HEAT-POLYMERIZED ACRYLIC RESIN

Pınar Altıncı, Pınar Durkaya

Purpose: The discoloration of acrylic resin denture bases may lead to significant esthetic problems. The aim of this in vitro study was to investigate the effects of frequently consumed drinks on the color changes of fresh and aged, heat-polymerized, conventional acrylic resin.

Materials and Methods: Eighty-four, heat-polymerized acrylic resin specimens (4 mm x 5 mm x 30 mm) were fabricated. Half of the specimens were aged by thermal cycling (between 5°C and 55°C, 60-second dwell time, 3000 cycles). The specimens were stored at 37°C in different drinks as non-aged and aged subgroups including water (control group), black tea, green tea, sour cherry juice, coke and coffee (n=7). The discoloration of each specimen after 1 and 7 days storage in the drinks were measured by a colorimeter based on CIE Lab system. The data of colour differences (ΔE) were analyzed by ANOVA and Dunnet’s tests.

Results: Thermal cycling and storage in water induced a slight color change. The highest ΔE values were observed in the aged groups, which was also noticeable for black tea and sour cherry juice after 7 days of storage (ΔE>1.5) (p<0.05). The ΔE values of all test groups were detected within the acceptable clinical limits (ΔE<3.5).

Conclusion: These results suggest that the color stability of denture base acrylic resins is influenced by ageing. Black tea, sour cherry juice and coke can cause significant discolorations on acrylic resin denture bases.

Keywords: Acrylic resin, denture base, discoloration, drinks, thermocycling
DOI :10.17096/jiufd.28587   IUP :10.17096/jiufd.28587    Full Text (PDF)

Termalsiklus ve Çeşitli İçeceklerin Isı ile Polimerize Akrilik Rezinin Renk Stabilitesi Üzerine Etkisi

Pınar Altıncı, Pınar Durkaya

Amaç: Akrilik rezin protez kaidelerinin renklenmesi önemli estetik sorunlara yol açabilir. Bu çalışmada sıklıkla tüketilen içeceklerin yaşlandırılmamış ve yaşlandırılmış ısı ile polimerize, geleneksel akrilik rezinin renk değişimi üzerine etkisinin araştırılması amaçlandı.

Gereç ve Yöntem: Isı ile polimerize akrilik rezinden 84 adet örnek (4 mm x 5 mm x 30 mm) üretildi. Örneklerin yarısı termalsiklus uygulanarak (5°C ve 55°C arasında, 60 saniye aralıklarla, 3000 siklus) yaşlandırıldı. Örnekler yaşlandırılmamış ve yaşlandırılmış alt gruplar halinde su (kontrol grubu), siyah çay, yeşil çay, vişne suyu, kola ve kahveyi içeren farklı içecek solüsyonları içerisinde 37 °C’de saklandı (n=7). Her örneğin renklenmesi 1 ve 7 gün saklama süreleri sonunda CIE Lab sistemi esaslı kolorimetre ile ölçüldü. Renk değişim (ΔE) verileri ANOVA ve Dunnet testleri ile analiz edildi.

Bulgular: Termalsiklus ve suda saklama sonucunda hafif renk değişimi meydana geldi. En yüksek ΔE değerleri yaşlandırılmış gruplarda görüldü. Bu oranlar siyah çay ve vişne suyu için 7 gün sonunda farkedilebilir düzeyde bulundu (ΔE>1.5) (p<0.05). ΔE değerlerinin tüm test grupları için klinik olarak kabul edilebilir sınırlar içerisinde olduğu saptandı (ΔE<3.5).

Sonuç: Bu çalışmadan elde edilen bulgular, yaşlanmanın akrilik rezin protez kaidelerinin renk stabilitesi üzerinde etkili olduğunu gösterdi. Siyah çay, vişne suyu ve kolanın akrilik rezin protez kaidelerinde önemli renklenmelere neden olabileceği belirlendi.

Keywords: Akrilik rezin, protez kaidesi, renkleşme, içecekler, termalsiklus

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APA

Altıncı, P., & Durkaya, P. (2016). EFFECTS OF THERMOCYCLING AND VARIOUS DRINKS ON THE COLOR STABILITY OF HEAT-POLYMERIZED ACRYLIC RESIN. European Oral Research, 50(3), 15-20. https://doi.org/10.17096/jiufd.28587


AMA

Altıncı P, Durkaya P. EFFECTS OF THERMOCYCLING AND VARIOUS DRINKS ON THE COLOR STABILITY OF HEAT-POLYMERIZED ACRYLIC RESIN. European Oral Research. 2016;50(3):15-20. https://doi.org/10.17096/jiufd.28587


ABNT

Altıncı, P.; Durkaya, P. EFFECTS OF THERMOCYCLING AND VARIOUS DRINKS ON THE COLOR STABILITY OF HEAT-POLYMERIZED ACRYLIC RESIN. European Oral Research, [Publisher Location], v. 50, n. 3, p. 15-20, 2016.


Chicago: Author-Date Style

Altıncı, Pınar, and Pınar Durkaya. 2016. “EFFECTS OF THERMOCYCLING AND VARIOUS DRINKS ON THE COLOR STABILITY OF HEAT-POLYMERIZED ACRYLIC RESIN.” European Oral Research 50, no. 3: 15-20. https://doi.org/10.17096/jiufd.28587


Chicago: Humanities Style

Altıncı, Pınar, and Pınar Durkaya. “EFFECTS OF THERMOCYCLING AND VARIOUS DRINKS ON THE COLOR STABILITY OF HEAT-POLYMERIZED ACRYLIC RESIN.” European Oral Research 50, no. 3 (Apr. 2024): 15-20. https://doi.org/10.17096/jiufd.28587


Harvard: Australian Style

Altıncı, P & Durkaya, P 2016, 'EFFECTS OF THERMOCYCLING AND VARIOUS DRINKS ON THE COLOR STABILITY OF HEAT-POLYMERIZED ACRYLIC RESIN', European Oral Research, vol. 50, no. 3, pp. 15-20, viewed 30 Apr. 2024, https://doi.org/10.17096/jiufd.28587


Harvard: Author-Date Style

Altıncı, P. and Durkaya, P. (2016) ‘EFFECTS OF THERMOCYCLING AND VARIOUS DRINKS ON THE COLOR STABILITY OF HEAT-POLYMERIZED ACRYLIC RESIN’, European Oral Research, 50(3), pp. 15-20. https://doi.org/10.17096/jiufd.28587 (30 Apr. 2024).


MLA

Altıncı, Pınar, and Pınar Durkaya. “EFFECTS OF THERMOCYCLING AND VARIOUS DRINKS ON THE COLOR STABILITY OF HEAT-POLYMERIZED ACRYLIC RESIN.” European Oral Research, vol. 50, no. 3, 2016, pp. 15-20. [Database Container], https://doi.org/10.17096/jiufd.28587


Vancouver

Altıncı P, Durkaya P. EFFECTS OF THERMOCYCLING AND VARIOUS DRINKS ON THE COLOR STABILITY OF HEAT-POLYMERIZED ACRYLIC RESIN. European Oral Research [Internet]. 30 Apr. 2024 [cited 30 Apr. 2024];50(3):15-20. Available from: https://doi.org/10.17096/jiufd.28587 doi: 10.17096/jiufd.28587


ISNAD

Altıncı, Pınar - Durkaya, Pınar. “EFFECTS OF THERMOCYCLING AND VARIOUS DRINKS ON THE COLOR STABILITY OF HEAT-POLYMERIZED ACRYLIC RESIN”. European Oral Research 50/3 (Apr. 2024): 15-20. https://doi.org/10.17096/jiufd.28587



TIMELINE


Submitted07.01.2016
Accepted12.04.2016
Published Online03.10.2016

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