Farklı Kalınlıklardaki CAD/CAM Seramiklerin Dual-Cure ve Light-Cure Rezin Siman Polimerizasyonlarına Etkisi
Yükleniyor...
Dosyalar
Tarih
2023
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Selçuk Üniversitesi Sağlık Bilimleri Enstitüsü
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
Bu çalışmanın amacı, farklı içerik ve kalınlıktaki CAD/CAM seramiklerin iki farklı
polimerizasyon mekanizmasına sahip rezin simanın polimerizasyonuna olan etkisinin dönüşüm
dereceleri hesaplanak incelenmesidir.
Lösitle güçlendirilmiş cam seramik (IPS Empress CAD), lityum disilikat ile güçlendirilmiş
cam seramik (IPS e.max CAD) ve monolitik zirkonya seramik (IPS e.max ZirCAD Prime)
CAD/CAM bloklardan 1,0 mm, 1,5 mm ve 2,0 mm kalınlığa sahip birer adet örnek üretici firmanın
önerileri doğrultusunda üretildi. Elde edilen farklı tip ve kalınlıktaki seramik kesitleri altında ışıkla
polimerize olan rezin siman (Variolink Esthetic LC (light-cure)) ve hem ışık hem de kimyasal
polimerize olan rezin simandan (Variolink Esthetic DC (dual-cure)) kapalı kutu ortamında LED ışığı
ile 20 sn süreyle polimerize edilen 10’ar adet örnek hazırlandı (toplam 180 örnek, n=10). Ayrıca
polimerizasyon öncesi ve sonrası dönüşüm derecesini belirlemek ve kontrol grubu olarak kullanılmak
amacıyla her iki rezin siman tipinde seramik kullanılmadan 10’ar adet örnek hazırlandı(toplam 20
örnek, n=10). Hazırlanan rezin siman örnekler ışık geçirmeyen bir kutuda 37 °C’de 24 saat bekletildi.
Tüm örnekler, dönüşüm derecelerinin belirlenmesi amacıyla fourier dönüşüm infrared spektroskopisi
(FTIR) cihazında analiz edilerek 1608 cm-1 ve 1637 cm-1 dalga boylarındaki absorbsiyon miktarları
kaydedildi. Elde edilen verilerin istatistiksel analizi tek yönlü varyans analizi (ANOVA) ile yapıldı.
Farklılık oluşan ortalamalara Duncan testi uygulandı. İkili karşılaştırmalar ise bağımsız t testi ile
yapıldı (α=0,05).
Farklı seramik tip ve kalınlıklarının her iki rezin simanın dönüşüm derecesi üzerinde etkisi
istatistiksel olarak anlamlı bulundu (P<0,001). Her iki rezin simanda en yüksek dönüşüm derecesi
kontrol gruplarında belirlendi. Farklı seramik kalınlıkları altında polimerize edilen simanlarda en
yüksek dönüşüm derecesi 1,0 mm kalınlığındaki IPS Empress CAD seramik altında polimerize
edilen simanlarda bulundu (P<0,001). Bu grupları sırasıyla 1,5 mm ve 2,0 mm kalınlığındaki IPS
Empress CAD altında hem ışık hem de kimyasal olarak polimerize olabilen rezin siman gruplarının
takip ettiği belirlendi (P<0,001). Adı geçen grupları 1,5 mm ve 2,0 mm kalınlığındaki IPS Empress
CAD, 1,0 mm kalınlığındaki IPS e.max CAD seramik altında ışıkla polimerize olabilen rezin siman
ve 1,0 mm kalınlığındaki IPS e.max CAD seramik altında hem ışık hem de kimyasal olarak
polimerize olabilen rezin simanın takip ettiği belirlendi (P<0,001). En düşük dönüşüm derecesi 1,0
mm, 1,5 mm ve 2,0 mm kalınlığındaki IPS e.max ZirCAD Prime seramikler altında polimerize edilen
ışıkla polimerize olabilen rezin simanda bulundu (P<0,001). Tüm kalınlıklarda dönüşüm derecesi
miktarları yüksekten düşüğe sırasıyla IPS Empress CAD, IPS e.max CAD ve IPS e.max ZirCAD
Prime olarak tespit edildi (P<0,001).
Işıkla polimerize olabilen ve hem ışık hem de kimyasal olarak polimerize olabilen rezin
simanların dönüşüm derecesi seramik tiplerinden ve seramik tiplerinin farklı kalınlıklarından önemli
derecede etkilenmektedir. Bu nedenle, hastaların klinik durumuna göre en uygun seramik tipi,
kalınlığı ve rezin siman çeşidinin seçimi restorasyonun ve simantasyonun başarısı açısından
önemlidir.
The aim of this study was to investigate the effect of CAD/CAM ceramics of different composition and thickness on the polymerization of resin cement with two different polymerization mechanisms by calculating the degree of conversion. One specimen each of leucite-reinforced glass ceramic (IPS Empress CAD), lithium disilicatereinforced glass ceramic (IPS e.max CAD), and monolithic zirconia ceramic (IPS e.max ZirCAD Prime) CAD/CAM blocks with thicknesses of 1.0 mm, 1.5 mm, and 2.0 mm were fabricated according to the manufacturer's recommendations. Under the ceramic sections of different types and thicknesses, 10 specimens each of light-cured resin cement (Variolink Esthetic LC) and dual-cure resin cement (Variolink Esthetic DC) were prepared (180 specimens in total, n = 10), which were polymerized with LED light for 20 s in a closed box environment. In addition, in order to determine the degree of converison before and after polymerization and to be used as a control group, 10 specimens were prepared without ceramic in both resin cement types (total of 20 specimens, n = 10). The prepared resin cement specimens were kept in a light-proof box at 37 °C for 24 hours. All specimens were analysed by Fourier transform infrared spectroscopy (FTIR) to determine the degree of conversion, and the absorption at 1608 cm-1 and 1637 cm-1 wavelengths was recorded. The statistical analysis of the obtained data was performed with a one-way analysis of variance (ANOVA). The Duncan test was applied to the means of difference. Pairwise comparisons were made with an independent t test (α=0.05). The effect of different ceramic types and thicknesses on the degree of conversion of both resin cements was statistically significant (P<0.001). The highest degree of conversion in both resin cements was determined in the control groups. In cements polymerized under different ceramic thicknesses, the highest degree of conversion was found in cements polymerized under 1.0 mm thick IPS Empress CAD ceramic (P<0.001). These groups were followed by 1.5 mm and 2.0 mm thick dual-cure resin cement groups under IPS Empress CAD, respectively (P<0.001). These groups were followed by IPS Empress CAD with 1.5 mm and 2.0 mm thickness, light-cure resin cement under IPS e.max CAD ceramic with 1.0 mm thickness, and dual-cure resin cement under IPS e.max CAD ceramic with 1.0 mm thickness (P<0.001). The lowest degree of conversion was found in light-cure resin cement polymerized under IPS e.max ZirCAD Prime ceramics with thicknesses of 1.0 mm, 1.5 mm, and 2.0 mm (P<0.001). In all thicknesses, the amounts of degrees of conversion were determined as IPS Empress CAD, IPS e.max CAD, and IPS e.max ZirCAD Prime, respectively (P<0.001). Different ceramic types and thicknesses have a significant impact on the degree of conversion of light-cure and dual-cure resin cements. Therefore, the selection of the most appropriate ceramic type, thickness, and type of resin cement according to the clinical condition of the patients is important for the success of the restoration and cementation
The aim of this study was to investigate the effect of CAD/CAM ceramics of different composition and thickness on the polymerization of resin cement with two different polymerization mechanisms by calculating the degree of conversion. One specimen each of leucite-reinforced glass ceramic (IPS Empress CAD), lithium disilicatereinforced glass ceramic (IPS e.max CAD), and monolithic zirconia ceramic (IPS e.max ZirCAD Prime) CAD/CAM blocks with thicknesses of 1.0 mm, 1.5 mm, and 2.0 mm were fabricated according to the manufacturer's recommendations. Under the ceramic sections of different types and thicknesses, 10 specimens each of light-cured resin cement (Variolink Esthetic LC) and dual-cure resin cement (Variolink Esthetic DC) were prepared (180 specimens in total, n = 10), which were polymerized with LED light for 20 s in a closed box environment. In addition, in order to determine the degree of converison before and after polymerization and to be used as a control group, 10 specimens were prepared without ceramic in both resin cement types (total of 20 specimens, n = 10). The prepared resin cement specimens were kept in a light-proof box at 37 °C for 24 hours. All specimens were analysed by Fourier transform infrared spectroscopy (FTIR) to determine the degree of conversion, and the absorption at 1608 cm-1 and 1637 cm-1 wavelengths was recorded. The statistical analysis of the obtained data was performed with a one-way analysis of variance (ANOVA). The Duncan test was applied to the means of difference. Pairwise comparisons were made with an independent t test (α=0.05). The effect of different ceramic types and thicknesses on the degree of conversion of both resin cements was statistically significant (P<0.001). The highest degree of conversion in both resin cements was determined in the control groups. In cements polymerized under different ceramic thicknesses, the highest degree of conversion was found in cements polymerized under 1.0 mm thick IPS Empress CAD ceramic (P<0.001). These groups were followed by 1.5 mm and 2.0 mm thick dual-cure resin cement groups under IPS Empress CAD, respectively (P<0.001). These groups were followed by IPS Empress CAD with 1.5 mm and 2.0 mm thickness, light-cure resin cement under IPS e.max CAD ceramic with 1.0 mm thickness, and dual-cure resin cement under IPS e.max CAD ceramic with 1.0 mm thickness (P<0.001). The lowest degree of conversion was found in light-cure resin cement polymerized under IPS e.max ZirCAD Prime ceramics with thicknesses of 1.0 mm, 1.5 mm, and 2.0 mm (P<0.001). In all thicknesses, the amounts of degrees of conversion were determined as IPS Empress CAD, IPS e.max CAD, and IPS e.max ZirCAD Prime, respectively (P<0.001). Different ceramic types and thicknesses have a significant impact on the degree of conversion of light-cure and dual-cure resin cements. Therefore, the selection of the most appropriate ceramic type, thickness, and type of resin cement according to the clinical condition of the patients is important for the success of the restoration and cementation
Açıklama
Anahtar Kelimeler
Dönüşüm derecesi, FTIR, rezin siman, tam seramik, Degree of conversion, resin cement, all-ceramic
Kaynak
WoS Q Değeri
Scopus Q Değeri
Cilt
Sayı
Künye
Arslan, B. (2023). Farklı Kalınlıklardaki CAD/CAM Seramiklerin Dual-Cure ve Light-Cure Rezin Siman Polimerizasyonlarına Etkisi. (Doktora Tezi). Selçuk Üniversitesi, Sağlık Bilimler Enstitüsü, Konya.
