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The Effect of Office Bleaching Procedure on Surface Hardness of Resin Composites

Year 2009, Volume: 36 Issue: 3 - Volume: 36 Issue: 3, 137 - 142, 01.08.2009

Abstract

The aim of this in vitro study was to evaluate effect of an office bleaching agent on surface hardness of one hybrid and three different nanofill resin composites. For this aim; disc-shaped composite specimens 10 x 2 mm were made using stainless steel mold. The resin materials were placed into the holes and covered by transparent mylar strips at the top and bottom. The material was compressed at both ends by glass slides 1mm thick. The light source tips of the curing units were positioned directly over the mylar strip. Quartz tungsten halogen type light curing unit were used for polymerization of samples from the top surface. After polishing with finishing disks, specimens were kept in 37 0 C distilled water for 24 hours. Three hardness readings on the top of each specimen were taken with Vickers hardness tester. After these measurements, bleaching agent containing 37.5% hydrogen peroxide was applied on the same surfaces and Vickers hardness measurements were performed again. The results of this study revealed that surface hardness values of hybrid composite Charisma and a nanofill composite Filtek Supreme XT showed statistically significant decrease after bleaching agent application. The lowest hardness values were taken with hybrid composite. Our results showed that the hardness values of nanofill composites were higher than that of hybrid composites.

References

  • Aschheim KW, Dale BG. Esthetic dentistry a clinical approach to techniques and materials. Second ed. Mosby Inc, Missouri p: 247-66, 2001.
  • Lorenzo JA, Navarro LF, Caballero AB. At- home vital bleaching: a comparison of hydrogen peroxide and carbamide peroxide treatments. Med Oral Patol Oral Cir Bucal. 2006;11: 94-9.
  • Haywood VB. Nightguard vital bleaching: current concepts and research. J Am Dent Assoc 1997;128 Suppl:19-25.
  • Sarrett DC. Tooth whitening today. J Am Dent Assoc 2002; 133: 1535-8.
  • Swift EJ. A method for bleaching discolored vital teeth. Quintessence Int 1988;19:607-12.
  • Marshall MV, Cancro LP, Fischman SL. Hydrogen peroxide: a review of its use in dentistry. J Periodontol 1995; 66: 786-96.
  • Rotstein I, Dankner E, Goldman A, Heling I, Stabholz A, Zalkind M. Histochemical analysis of dental hard tissues following bleaching. J Endod 1996; 22: 23-7.
  • Gökay O. Devital dişlere uygulanan ağartma ajanlarının kompozit rezinlerin mikrosızıntısı üzerinde- ki etkisinin invitro değerlendirilmesi. A Ü Diş Hek Fak Derg 1993; 20: 195-200.
  • Bağış YH, Ertaş E. Kompozit restorasyonların yapımından once ve sonra uygulanan vital ağartma iş- lemlerinin mikrosızıntı üzerindeki etkileri. A Ü Diş Hek Fak Derg 2000; 27: 137-42.
  • Gökay O, Müjdeci A. Ağartma ajanı uygu- lanmış ve uygulanmamış dişlerde restoratif materyaller ve mine dokusu arayüz ilişkisinin SEM ile değerlendi- rilmesi. A Ü Diş Hek Fak Derg 1998; 25: 229-39.
  • Moszner N, Klapdohr S. Nanotechnology for dentalcomposites. Int J Nanotechnology 2004; 1: 130- 56.
  • Terry DA. Direct applications of a nanocomposite resin system: Part 1-The evaluation of contemporary composite materials. Pract Proced Aesthet Dent. 2004; 16: 417-22.
  • Mitra SB, Wu D, Holmes BN. An application of nanotechnology in advanced dental materials. JADA 2003; 134: 1382-90.
  • Willems G, Celis JP, Lambrechts P, Braem M, Vanherle G. Hardness and Young’s modulus determined by nanoindentation technique of filler particles of dental restorative materials compared with human enamel. J Biomed Mater Res 1993; 27:747-55.
  • Chung KH. The relationship between composition and properties of posterior resin composites. J Dent Res 1990;69:852-6.
  • Yap AUJ, Wee KEC, Teoh SH. Effects of cyclic temperature changes on hardness of composite restoratives. Oper Dent 2002; 27: 25-9.
  • Oberholzer TG, Grobler SR, Pameijer CH, Hudson AP. The effects of light intensity and method of exposure on the hardness of four light-cured dental restorative materials. Int Dent J. 2003;53:211-5.
  • Kim KH, Ong JL, Okuno O. The effect of fil- ler loading and morphology on the mechanical properties of contemporary composites. J Prosthet Dent. 2002 ;87 :642-9.
  • Manhart J, Kunzelmann KH, Chen HY, Hickel R. Mechanical properties and wear behavior of light-cured packable composite resins. Dent Mater. 2000 ;16 :33-40.
  • Vankerckhoven H, Lambrechts P, van Beylen M, Vanherle G. Characterization of composite resins by NMR and TEM. J Dent Res. 1981 ;60 :1957-65.
  • Scougall-Vilchis RJ, Hotta Y, Hotta M, Idono T, Yamamoto K. Examination of composite resins with electron microscopy, microhardness tester and energy dispersive X-ray microanalyzer. Dent Mater J. 2009; 28 :102-12.
  • Raptis CN, Fan PL, Powers JH. Properties of microfilled and visible light-cure composite resins. JADA 1979; 99: 631-6.
  • Bailey SJ, Swift EJ Jr. Effects of home bleaching products on composite resins. Quintessence Int. 1992 ;23 :489-94.
  • Türker SB, Biskin T. The effect of bleaching agents on the microhardness of dental aesthetic restorative materials. J Oral Rehabil. 2002 ;29 :657-61.
  • Cooley RL, Burger KM. Effect of carbamide peroxide on composite resins. Quintessence Int. 1991; 22: 817-21.
  • Campos I, Briso AL, Pimenta LA, Ambrosano G. Effects of bleaching with carbamide peroxide gels on microhardness of restoration materials. J Esthet Restor Dent. 2003; 15 :175-82.
  • Yap AUJ, Wattanapayungkul P. Effects of in office tooth whiteners on hardness of tooth-colored restoratives. Oper Dent. 2002; 27: 137-41.

Office bleaching uygulamasının kompozit rezinlerin yüzey sertliğine etkisi

Year 2009, Volume: 36 Issue: 3 - Volume: 36 Issue: 3, 137 - 142, 01.08.2009

Abstract

Bu in vitro çalışmanın amacı, bir office bleaching ajanın, bir hibrid ve üç farklı nanofil dolduruculu kompozit rezinin yüzey sertliğine etkilerinin değerlendirilmesidir. Bu amaç için, disk şeklinde kompozit örnekler, paslanmaz çelik kalıplar yardımıyla hazırlandı 10 x 2 mm . Örnekler çelik kalıplara alt ve üst yüzeylerinde şeffaf bant olacak şekilde yerleştirildi. Daha sonra 1mm kalınlığındaki cam plakalar arasında parmak basıncıyla sıkıştırıldı. Örneklerin polimerizasyonu için ışık cihazının ucu direkt olarak şeffaf bant yüzeyinden uygulandı. Kuartz tungsten halojen ışık cihazı kullanılarak örneklerin polimerizasyonu gerçekleştirildi. Örnekler, bitirme diskleriyle cilalandıktan sonra 37 0 C da 24 saat distile su ortamında bekletildi. Örneklerin üst yüzeylerinden üçer defa Vickers sertlik cihazı ile ölçüm yapıldı. İlk ölçümlerden sonra aynı yüzeylere %37,5 oranında hidrojen peroksit içeren beyazlatıcı ajan uygulandı ve bu işlem sonrası yüzey sertlik ölçümleri tekrarlandı. Araştırma sonuçları, beyazlatıcı ajan uygulaması sonrasında, hibrid kompozit Charisma ve bir nanofil dolduruculu kompozit Filtek Supreme XT ’in yüzey sertlik değerlerinde istatistiksel olarak anlamlı derecede azalma görüldüğünü ortaya koymuştur. Beyazlatma sonrası en düşük yüzey sertlik değerleri, hibrid kompozit örneklerde elde edildi. Araştırma sonuçları, beyazlatma sonrası nanofil dolduruculu kompozitlerin yüzey sertlik değerlerinin, hibrid kompozitin yüzey sertlik değerlerinden daha yüksek olduğunu gösterdi.

References

  • Aschheim KW, Dale BG. Esthetic dentistry a clinical approach to techniques and materials. Second ed. Mosby Inc, Missouri p: 247-66, 2001.
  • Lorenzo JA, Navarro LF, Caballero AB. At- home vital bleaching: a comparison of hydrogen peroxide and carbamide peroxide treatments. Med Oral Patol Oral Cir Bucal. 2006;11: 94-9.
  • Haywood VB. Nightguard vital bleaching: current concepts and research. J Am Dent Assoc 1997;128 Suppl:19-25.
  • Sarrett DC. Tooth whitening today. J Am Dent Assoc 2002; 133: 1535-8.
  • Swift EJ. A method for bleaching discolored vital teeth. Quintessence Int 1988;19:607-12.
  • Marshall MV, Cancro LP, Fischman SL. Hydrogen peroxide: a review of its use in dentistry. J Periodontol 1995; 66: 786-96.
  • Rotstein I, Dankner E, Goldman A, Heling I, Stabholz A, Zalkind M. Histochemical analysis of dental hard tissues following bleaching. J Endod 1996; 22: 23-7.
  • Gökay O. Devital dişlere uygulanan ağartma ajanlarının kompozit rezinlerin mikrosızıntısı üzerinde- ki etkisinin invitro değerlendirilmesi. A Ü Diş Hek Fak Derg 1993; 20: 195-200.
  • Bağış YH, Ertaş E. Kompozit restorasyonların yapımından once ve sonra uygulanan vital ağartma iş- lemlerinin mikrosızıntı üzerindeki etkileri. A Ü Diş Hek Fak Derg 2000; 27: 137-42.
  • Gökay O, Müjdeci A. Ağartma ajanı uygu- lanmış ve uygulanmamış dişlerde restoratif materyaller ve mine dokusu arayüz ilişkisinin SEM ile değerlendi- rilmesi. A Ü Diş Hek Fak Derg 1998; 25: 229-39.
  • Moszner N, Klapdohr S. Nanotechnology for dentalcomposites. Int J Nanotechnology 2004; 1: 130- 56.
  • Terry DA. Direct applications of a nanocomposite resin system: Part 1-The evaluation of contemporary composite materials. Pract Proced Aesthet Dent. 2004; 16: 417-22.
  • Mitra SB, Wu D, Holmes BN. An application of nanotechnology in advanced dental materials. JADA 2003; 134: 1382-90.
  • Willems G, Celis JP, Lambrechts P, Braem M, Vanherle G. Hardness and Young’s modulus determined by nanoindentation technique of filler particles of dental restorative materials compared with human enamel. J Biomed Mater Res 1993; 27:747-55.
  • Chung KH. The relationship between composition and properties of posterior resin composites. J Dent Res 1990;69:852-6.
  • Yap AUJ, Wee KEC, Teoh SH. Effects of cyclic temperature changes on hardness of composite restoratives. Oper Dent 2002; 27: 25-9.
  • Oberholzer TG, Grobler SR, Pameijer CH, Hudson AP. The effects of light intensity and method of exposure on the hardness of four light-cured dental restorative materials. Int Dent J. 2003;53:211-5.
  • Kim KH, Ong JL, Okuno O. The effect of fil- ler loading and morphology on the mechanical properties of contemporary composites. J Prosthet Dent. 2002 ;87 :642-9.
  • Manhart J, Kunzelmann KH, Chen HY, Hickel R. Mechanical properties and wear behavior of light-cured packable composite resins. Dent Mater. 2000 ;16 :33-40.
  • Vankerckhoven H, Lambrechts P, van Beylen M, Vanherle G. Characterization of composite resins by NMR and TEM. J Dent Res. 1981 ;60 :1957-65.
  • Scougall-Vilchis RJ, Hotta Y, Hotta M, Idono T, Yamamoto K. Examination of composite resins with electron microscopy, microhardness tester and energy dispersive X-ray microanalyzer. Dent Mater J. 2009; 28 :102-12.
  • Raptis CN, Fan PL, Powers JH. Properties of microfilled and visible light-cure composite resins. JADA 1979; 99: 631-6.
  • Bailey SJ, Swift EJ Jr. Effects of home bleaching products on composite resins. Quintessence Int. 1992 ;23 :489-94.
  • Türker SB, Biskin T. The effect of bleaching agents on the microhardness of dental aesthetic restorative materials. J Oral Rehabil. 2002 ;29 :657-61.
  • Cooley RL, Burger KM. Effect of carbamide peroxide on composite resins. Quintessence Int. 1991; 22: 817-21.
  • Campos I, Briso AL, Pimenta LA, Ambrosano G. Effects of bleaching with carbamide peroxide gels on microhardness of restoration materials. J Esthet Restor Dent. 2003; 15 :175-82.
  • Yap AUJ, Wattanapayungkul P. Effects of in office tooth whiteners on hardness of tooth-colored restoratives. Oper Dent. 2002; 27: 137-41.
There are 27 citations in total.

Details

Primary Language Turkish
Journal Section Research Article
Authors

Kıvanç Yamanel This is me

İsmail Baltacıoğlu This is me

Yıldırım Hakan Bağış This is me

Publication Date August 1, 2009
Published in Issue Year 2009 Volume: 36 Issue: 3 - Volume: 36 Issue: 3

Cite

Vancouver Yamanel K, Baltacıoğlu İ, Bağış YH. Office bleaching uygulamasının kompozit rezinlerin yüzey sertliğine etkisi. EADS. 2009;36(3):137-42.