Determination of color stability of composite resins polymerized with different light sources

Abstract

Light polymerized composite resins, for example minifil hybrid composites and condansable composites are commonly used in dentistry owing to their developed physical, mechanical and esthetical properties. LED Light Emitted diode light units are commonly used to polymerize the resin composites. Composite restorations may show color changes in several degrees in oral environment. These color changes of restorative materials occur in oral cavity caused by several physical and chemical factors; water, drinks etc. The aim of this study was to examinate the color changes of samples embedded in water and polymerized with a halogen and a LED light units. In the study, a posterior minifil hybrid composite material “Aélite Bisco, USA ” and a posterior condansable composite resin material “Solitaire 2 Heraeus Kulzer, Dormagen, Germany were used. They were polymerized with a conventional halogen and a LED light units. Color measurements of samples which were stored in deionised water were performed according to “CIE-L*a*b* color system” with a colorimeter device Minolta CR-321 at the times of “initial”, “after one week” and “after one month”. Data were determined with Three-Way-variance Analyse ANOVA and Duncan Multiple Comparison Test p

Keywords

• Minifil hybrid composites, Condansable composites, Color stability

Farklı ışık kaynakları ile polimerize edilen kompozit rezinlerin renk stabilitelerinin değerlendirilmesi

Abstract

Minifil hibrit kompozitler ve kondanse edilebilir kompozitler gibi ışıkla polimerize olan kompozit rezin materyaller, gelişmiş fiziksel, mekanik ve estetik özellikleri ve pratik kullanımları sebebiyle, diş hekimliğinde oldukça yaygın olarak kullanılmaktadırlar. Rezin kompozitlerin polimerizasyonlarında son zamanlarda, halojen ışık kaynaklarının yanı sıra, LED ışık saçan diyotlar olarak adlandırılan ışık kaynakları da sıklıkla kullanılmaya başlanmıştır. Kompozit restorasyonlar, ağız ortamında, çeşitli derecelerde renklenme gösterebilmektedirler. Bu renklenmeler; restoratif materyallerin ağız ortamında çeşitli fiziksel ve kimyasal etkenlere, su ve içecekler gibi çeşitli sıvılara maruz kalmaları sonucunda meydana gelebilmektedir. Bu çalışmada; halojen ve LED ışık cihazlarıyla polimerize edilen minifil hibrit ve kondanse edilebilir kompozit rezin materyalin suda bekletilmelerinin, kompozit rezinlerin renk stabiliteleri üzerine olan etkisinin incelenmesi amaçlanmıştır. Çalışmada, bir posterior minifil hibrid kompozit rezin “Aélite Bisco, USA ” ve bir posterior kondanse edilebilir kompozit rezin materyal “Solitaire 2 Heraeus Kulzer, Dormagen, Germany kullanılmış ve geleneksel halojen ve LED ışık kaynaklarıyla polimerize edilmişlerdir. Bir hafta ve bir ay deiyonize suda bekletilen örneklerin “başlangıç”, “1 hafta sonraki” ve “1 ay sonraki” renk ölçümleri, bir kolorimetre cihazıyla Minolta CR-321 , “CIE-L*a*b* renk sistemi” ’ne göre yapılmış ve verilerin istatistiksel olarak karşılaştırılmaları için 3-Yönlü-Varyans Analizi ANOVA ve Duncan Çoklu karşılaştırma Testleri kullanılmıştır p

Keywords

• Minifil hibrit kompozitler, Kondanse edilebilir kompozitler, Renk stabilitesi

References

1. McCabe JF, Walls A. Applied dental materials. 8th ed. Madlen MA-USA: Blackwell Publishing Co;1998.
2. Li Y, Swartz ML, Phillips RW, Moore BK, Roberts TA. Effect of filler content and size on properties of composites. J Dent Res 1985; 64:1396-401.
3. Baghdadi ZD. Preservation-based approaches to restore posterior teeth with amalgam, resin or a combination of materials. Am J Dent 2002; 15:54-65.
4. Lutz F, Phillips RW. A classification and evaluation of composite resin systems. J Prosthet Dent 1983; 50: 480-8.
5. Dayangaç B. Kompozit Rezin Restora- syonlar. Ankara: Güneş Kitabevi; 2000.
6. Leinfelder KF, Bayne SC, Swift EJ Jr. Packable composites: overview and technical considerations. J Esthet Dent 1999; 11: 234-49.
7. Ferracane JL, Antonio RC, Matsumoto H. Variables affecting the fracture toughness of dental composites. J Dent Res 1987; 66: 1140-5.
8. Condon JR, Ferracane JL. In vitro wear of composite with varied cure, filler level, and filler treatment. J Dent Res 1997; 76: 1405-11.

9. Choi KK, Ferracane JL, Hilton TJ, Charlton D. Properties of packable dental composites. J Esthet Dent 2000; 12: 216-26.
10. Rahlotis C, Kakaboura A, Loukidis M, Vougiouklakis G. Curing efficiency of various types of light-curing units. Eur J Oral Sci 2004; 112: 89-94.
11. Vandewalle KS, Roberts HW, Tiba A, Charlton DG. Thermal emission and curing efficiency of LED and halogen curing lights. Oper Dent 2005; 30: 257-64.
12. Rueggeberg FA, Ergle JW, Mettenburg DJ. Polymerization depths of contemporary light-curing units using microhardness. J Esthet Dent 2000; 12: 340-9.
13. Küçükeşmen Ç. Farklı ışık kaynakları ve yeni polimerizasyon teknikleri. Cumhuriyet Üniversitesi Diş Hekimliği Fakültesi Dergisi 2006; 9: 127-37.
14. Khokhar ZA, Razzoog ME, Yaman P. Color stability of restorative resins. Quintessence Int 1991; 22: 733-7.
15. Douglas RD. Color stability of new- generation indirect resins for prosthodontic application. J Prosthet Dent. 2000; 83: 166-70.
16. Gürdal P, Akdeniz BG, Sen BH. The effects of mouthrinses on microhardness and colour stability of aesthetic restorative materials. J Oral Rehabil 2002; 29: 895-901.
17. Gaintantzopoulou M, Kakaboura A, Loukidis M, Vougiouklakis G. A study on color stability of self-etching and etch-and- rinse adhesives. J Dent 2009; 37. 390-6
18. International Commission on Illumina- tion: supplement No.2 to CIE Publ. No. 15, Recommendations on Uniform Color Spaces- Color-Difference Equations-Psychometric Color Terms. Bureau Central de la CIE, Paris 1978.
19. Bayne SC, Thompson JY. Biomate- rials. In: Roberson TM, Heymann HO, Swift EJ, eds. Sturdevant’s Art and Science of Oper- ative Dentistry, 5th ed. Missouri: Mosby Inc, 2006: p. 137-242.
20. Roberson TM., Heymann HO, Ritter AV. Introduction To Composite Restorations, In: Roberson TM, Heymann HO, Swift EJ, eds. Sturdevant’s Art and Science of Operative Dentistry, 5th ed. Missouri: Mosby Inc, 2006: p. 497-526.
21. Sadeghi M, Lynch CD, Shahamat N. Eighteen-month clinical evaluation of micro- hybrid, packable and nanofilled resin compo- sites in Class I restorations. J Oral Rehabil 2010; 37: 532-7.
22. Loguercio AD, Reis A, Hernandez PA, Macedo RP, Busato AL. 3-Year clinical evaluation of posterior packable composite re- sin restorations. J Oral Rehabil 2006; 33: 144- 51.
23. Kiremitci A, Alpaslan T, Gurgan S. Six-year clinical evaluation of packable com- posite restorations. Oper Dent 2009; 34: 11-7.
24. Dresch W, Volpato S, Gomes JC, Ri- beiro NR, Reis A, Loguercio AD. Clinical evaluation of a nanofilled composite in post- erior teeth: 12-month results. Oper Dent 2006; 31: 409-17.
25. Bayne SC, Taylor DF, Heymann HO. Protection hypothesis for composite wear. Dent Mater 1992; 8: 305-9.
26. Hosoya Y. Five-year color changes of ligth-cured resin composites: Influence of light-curing times. Dent Mater 1999; 15: 268- 74.
27. Nanhatson D, Banasr F. Color stability of resin cements-an in vitro study. Pract Proced Aesthet Dent 2002; 14: 449-55.
28. Tanoue N, Koishi Y, Atsuta M, Matsumura H. Properties of dual-curable luting composites polymerized with single and dual curing modes. J Oral Rehabil 2003; 30: 1015- 21.
29. Eliades T, Gioka C, Heim M, Eliades G, Makouy M. Color stability of Orthodontic Adhesive Resins. Angle Orthod 2004; 74: 391- 3.
30. Villalta P, Lu H, Okte Z, Garcia- Godoy F, Powers JM. Effects of staining and bleaching on color change of dental composite resins. J Prosthet Dent 2006; 95: 137-42.
31. Seghi RR, Gritz MD, Kim J. Colorimetric changes in composites resulting from visible-light-initiated polymerization. Dent Mater 1990; 6: 133-7.
32. Albers HF. Tooth-Colored Restoratives Principles and Techniques. London: BC Decker Inc Hamilton; 2002.
33. Asmussen E. Factors affecting the colour stability of restorative resins. Acta Odontol Scand 1983; 41: 11-8.
34. Sham ASK, Chu FCS, Chai J, Chow TW. Color stability of provisional prosthodontic materials. J Prosthet Dent 2004; 91: 447-52.