Atatürk Üniversitesi Diş Hekimliği Fakültesi Dergisi 1300-9044 2667-5161 Ataturk University 10.17567/ataunidfd.473726 Health Care Administration Sağlık Kurumları Yönetimi SİLİKON ESASLI YUMUŞAK ASTAR MATERYALLERİNDE BEKLETME SÜRELERİNİN SERTLİK VE SU EMİLİMİ ÜZERİNE ETKİSİ https://orcid.org/0000-0002-6323-407X Tuğut Faik https://orcid.org/0000-0002-2430-5170 Coşkun M.emre https://orcid.org/0000-0003-2035-8686 Akar Türker 10 14 2018 28 4 469 474 01 24 2017 03 29 2017 Copyright © 1986, Atatürk Üniversitesi Diş Hekimliği Fakültesi Dergisi 1986 Atatürk Üniversitesi Diş Hekimliği Fakültesi Dergisi

Amaç:Bu çalışmanın amacı, silikon esaslıyumuşak astar materyalinin su içerisinde bekletme sürelerinin maddenin sertliğive su emilimi üzerine etkisini araştırmaktır.Gereç ve Yöntem: Çalışmada silikon esaslı yumuşakastar maddesi Permaflex ve aynı maddenin izobutil- metakrilat likit ilaveedilmiş formu kullanıldı. Yumuşak astar materyalleri üretici talimatlarınauygun olarak su emilimi testleri için (10x10x1mm) boyutlarında, sertliktestleri için ise (10x10mm) boyutlarında hazırlandıve 370C’lik su banyosu içerisinde bekletildi. 1. gün, 1. hafta, 1,3 ve 6 aylık süre zarflarında su emilim veShore A sertlik değerleri ölçümleri gerçekleştirildi. Veriler Man Whitney U testi, Friedman testi ve Wilcoxontesti kullanılarak belirlendi (α=0.05).Bulgular: Sertlik değerleri bakımından, Permaflexve Permaflex+izobutilmetakrilat grupları arasında tüm za- man dilimlerikıyaslandığında istatistiksel olarak anlamlı fark tespit edilmiştir(p<0,05). Su emilim değerleri ara- sında da sadece 3. ay ölçümlerindeistatistiksel olarak fark tespit edilmiştir (p<0,05). Permaflex grubunun suemilim değeri Permaflex+izobutilmetakrilatgrubundan istatistiksel olarak anlamlıderecede yüksek olarak tespit edilirken daha düşük sertlik değerine sahipolduğu bulunmuştur. Suda bekletilme süreleri boyunca hem Permaflex hem dePermaflex+izobutilmetakrilat gruplarının su emilim değerlerinde artışgörülürken, sertlik değerlerinde istatistiksel olarak önemli bir artış tespitedilmemiştir. Sonuç: İzobutilmetakrilat’ın ve farklı zamandilimlerin- de bekletmenin sertlik ve su emilimi açısından yumu- şak astarmaddesi üzerinde değişikliğe sebep olduğu belirlendi. * Cumhuriyet Üniversitesi, Dişhekimliği Fakültesi, Protetik Diş Tedavisi AD, Sivas **Erzincan Üniversitesi, Diş Hekimliği Fakültesi, Protetik Diş Tedavisi AD, Erzincan    Anahtar Kelimeler: Yumuşak astar maddesi, izobutilmetakrilat, sertlik, su emilimiTHE EFFECT OF STORAGE TIMES ON THE HARDNESS AND WATERSORPTION IN SILICONE-BASED SOFT LINING MATERIALSAim: The purpose of this research is to investigate theeffect of the storage times of silicone-based soft lining material in water onhardness and water absorption of the material.Materialand methods: In this study, silicone based soft denture liner Permaflex andisobutylmethacrylate-added form of the same material were used. The soft denture liners were processed according tomanufac- turers’ instructions with the dimension (10x10x1mm) for water sorptiontests and (10x10mm) for hardness tests, and then put in water bath at 37 0C. During the periodsof 1st day, 1st week, 1, 3 and 6 months, the measurementsof water absorption and Shore A hardness values were performed. Data wereevaluated using Man Whıtney U, Friedman and Wilcoxon tests (α=0.05).Results:Regardingthe hardness, a statistically signi-ficant difference was obtained among all Permaflex and Permaflex+isobutylmethacrylate groups when comparing alltime periods (p<0,05). A statistically sig- nificant difference was alsofound between the water absorption values only at the 3rd monthmeasurements (p<0,05). In Permaflex group, water absorption value wasstatistically higher and hardness values were sta- tistically lower compared toPermaflex+ isobutylmet- hacrylate groups. While the water absorption values ofboth Permaflex and Permaflex + isobutylmethacrylate groups increased during thewater holding periods, no statistically significant increase in hardness valueswas found.Conclusion:Ithas been determined that isobutylmethacrylate and storage in different timeperiods cause a change in the soft lining material in terms of hardness andwater absorption. Keywords: Softlining materials, Isobutylmethacrylate, hardness, water sorption

 Yumuşak astar maddesi izobutilmetakrilat sertlik 1. McCabe JF, Carrick TE, Kamohara H. Adhesive Bond Strength and Compliance for Denture Soft Lining Materials. Biomaterials 2002; 23: 1347–52. 2. Machado AL, Breeding LC, Puckett AD. Effect of Microwave Disinfection on The Hardness and Adhesion of Two Resilient Liners. J Prosthet Dent 2005; 94: 183-9. 3. Akşit KS, Mandalı G, Gürbüz Ö. Protetik Tedavide Bir Yumuşak Astar Maddesi; Molloplast-B. Atatürk Üniv Diş Hek Fak. Derg. 2012; 5: 113-22. 4. Leon BLT, Del Bel Cury AA, Rodrigues Garcia RC. Water Sorption, Solubility, and Tensile Bond Strength of Resilient Denture Lining Materials Polymerized By Different Methods After Thermal Cycling. J Prosthet Dent 2005; 93: 282-7. 6. Braden M, Wright PS. Water Absorption and Water Solubility of Soft Lining Materials for Acrylic Dentures. J Dent Res 1983; 62: 764-8. 7. Murata H, Taguchi N, Hamada T, McCabe JF. Dynamic Viscoelastic Properties and The Age Changes of Long-Term Soft Denture Liners. Biomaterials 2000; 21: 1421-7. 8. Yanıkoğlu N. Yumuşak Astar Maddeleri ve Özellikleri. Atatürk Üniv Diş Hek Fak Derg. 2004; 14: 55-64. 9. Pavan S, Filho JNA, Santos PH, Nogueira SS, Batista AUD. Effect of Disinfection Treatments on the Hardness of Soft Denture Liner Materials. J Prosthodont 2007; 16: 101-6. 10. Craig RG, Powers JM, Wataha JC. Dental Materials, Properties and Manipulation. 11th ed. St. Louis; Mosby: 2002. p. 668. 11. Parker S, Braden M. Water Absorption of Methacrylate Soft Lining Materials. Biomaterials 1989; 10: 91-5. 12. Tugut F, Akin H, Mutaf B, Akin GE, Ozdemir AK. Strength of The Bond Between A Silicone Lining Material and Denture Resin After Er:YAG Laser Treatments with Different Pulse Durations and Levels of Energy. Lasers Med Sci 2012; 27: 281-5. 13. Bolayır G, Demir H, Doğan A, Boztuğ A, Doğan OM, Soygun K. Effects of Different High Alkyl Methacrylate Monomers on Tensile Bond Strength Between Resilient Liner and Acrylic Resin. Mater Res Innov 2009; 13: 431-5 14. Akin H, Tugut F, Mutaf B, Guney U. Investigation of Bonding Properties of Denture Bases to Silicone-Based Soft Denture Liner İmmersed in İsobutyl Methacrylate and 2-Hydroxyethyl Methacrylate. J Adv Prosthodont 2014; 6: 121-5. 15. Johnson JA, Jones DW. The Mechanical Properties of PMMA and Its Copolymers with Ethyl Methacrylate and Butyl Methacrylate. J Mater Sci 1994; 29: 870-6 16. Sahin O, Ozdemir AK, Turgut M, Boztug A, Sumer Z. Investigation of Flexural Strength and Cytotoxicity of Acrylic Resin Copolymers by Using Different Polymerization Methods. J Adv Prosthodont 2015; 7: 98-107 17.Emileh A, Farahani EV, Imani M. Swelling Behavior, Mechanical Properties and Network Parameters of Ph And Temperature-Sensitive Hydrogels of Poly((2-Dimethyl Amino) Ethylmethacrylate-Co-Butyl Methacrylate). Eur Polymer J 2007; 43: 1986-95. 18. Chen, JT, Lin Y. Liquid-Liquid Equilibria of Water + 1-Butanol + Methyl Methacrylate or Butyl Methacrylate or İsobutyl Methacrylate at 288.15 K and 318.15 K. Fluid Phase Equilibra 2007; 259: 189-94. 19. Kawano F, Dootz ER, Koran A 3rd, Craig RG. Sorption and Solubility of 12 Soft Denture Liners. J Prosthet Dent 1994; 72: 393-8. 20. Kulak-Ozkan Y, Sertgoz A, Gedik H. Effect of Thermocycling on Tensile Bond Strength of Six Silicone-Based, Resilient Denture Liners. J Prosthet Dent 2003; 89: 303-10. 21. Parr GR, Rueggeberg FA. In Vitro Hardness, Water Sorption, and Resin Solubility of Laboratory-Processed and Autopolymerized Long-Term Resilient Denture Liners Over One Year of Water Storage. J Prosthet Dent 2002; 88: 139-44 22.Mese A, Guzel KG, Uysal E. Effect of Storage Duration on Tensile Bond Strength of Acrylic or Silicone-Based Soft Denture Liners to A Processed Denture Base Polymer. Acta Odontol Scand 2005; 63: 31-5. 23. Urban VM, Lima TF, Bueno MG, Giannini M, Filho AJ, Effect of The Addition of Antimicrobial Agents on Shore A Hardness and Roughness of Soft Lining Materials. Journal of Prosthodontics 24; 2015: 207–14 24. Pahuja RK, Garg S, Bansal S, Dang RH. Effect of Denture Cleansers on Surface Hardness of Resilient Denture Liners at Various Time İntervals- An İn Vitro Study. J Adv Prosthodont 2013; 5: 270-7 25. Tuğut F, Coşkun ME, Akın H. Farklı İçeceklerin Silikon Esaslı Yumuşak Astar Maddesi ile Kaide Rezini Arasındaki Bağlanma Direncine Etkisi. Turkiye Klinikleri J Dental Sci 2016; 22: 104-9 26. El-Hadary A, Drummond JL. Comparative Study of Water Sorption, Solubility, and Tensile Bond Strength of Two Soft Lining Materials. J Prosthet Dent 2000; 83: 356-61 27. Yanıkoğlu ND, Duymuş ZY. Comparative Study of Water Sorption And Solubility of Soft Lining Materials in the Different Solutions. Dental Materials Journal 2004; 23: 233-9 28. Kim B, Yang H, Chun M, Park Y. Shore Hardness and Tensile Bond Strength of Long-Term Soft Denture Lining Materials. J Prosthet Dent 2014; 112: 1289-97