Publication: Effect of using different bonding systems on shear bond strength of a repair composite to a feldspathic ceramic
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Date
05/11/2019
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Bu çalışmada, farklı tipte bonding sistemlerinin feldspatik seramik tamirindekullanımındaki bağlanma dayanımına etkisinin değerlendirilmesi amaçlanmıştır.Materyal ve metot: Kırk beş alümina ile güçlendirilmiş feldspatik seramik diskhazırlandı ve rastgele 3 gruba ayrıldı; Grup A: Silansız adeziv+ekstra silan uygulaması(iki aşamalı), Grup B: Silan içeren tek aşamalı (Single Bond Universal), Group C:Silan içeren tek aşamalı (Universal Bond). Disk yüzey uygulamaları seramik atmanınağız içindeki tamir adımlarını taklit ederek şu şekilde yapıldı: (1) elmas frez ileseramik yüzeyin aşındırılması, (2) %37’lik ortofosforik asit ile yüzey temizleme, (3)adeziv uygulanması, (4) ışık polimerize kompozit rezin uygulanması. 5000 termaldöngüden sonra, numuneler Universal test cihazına yerleştirilip ve başarısızlığauğrayana kadar 0,5 mm/dak hızda makaslama kuvveti uygulandı. Kopma paternleritaramalı elektron mikroskobu kullanılarak incelendi. İstatistiksel analiz, tek yönlüANOVA ve Tukey'in post-hoc testleri kullanılarak yapıldı.Bulgular: Ortalama makaslama bağlanma dayanımı en yüksek değeri Grup C'de(8.07±3.05) bulundu. Grup A ve B için ortalama değerler sırasıyla 7.67±2.75 MPa ve3.07±1.23 MPa idi. Grup C ve A'nın makaslama bağlanma dayanımı değerleri GrupB'den anlamlı miktarda yüksek değerlerine sahipti (p<0.001). Grup A ve C arasındaistatistiksel olarak anlamlı fark bulunamadı (p>0.05). Kopma paterni Grup B' detamamen adeziv tipte görülürken, Grup A ve C'deki kopma paterni sırasıyla % 86.7ve % 66.7 idi.Sonuç: İki aşamalı uygulamanın silan içeren Tokuyama universal bond sistemi ilebağlanma dayanımı açısından hiçbir farkı olmaması ve Single bond universalsisteminin diğer iki sistemden daha az bağlanma dayanımına sahip olması sebebiyle,bağlanma dayanımının uygulama tipiyle ilişkili olmadığı sonucuna varılabilir.Anahtar kelimeler: Feldspatik seramik, tamir, makaslama bağlanma dayanımı.
This study was aimed to evaluate the shear-bond-strength values of differenttypes of adhesive bonding systems in feldspathic ceramic repair.Material and Method: A forty-five alumina-reinforced feldspathic ceramic discswere prepared, and randomly divided into 3 groups; GroupA: Silane+Adhesivewithout silane application (two-step), GroupB: Silane containing adhesive application(one-step, one-bottle), GroupC: Silane containing adhesive application (one-step, 2-bottles). The samples were treated simulating intraoral ceramic repair steps such as:(1)ceramic surface treatment with a diamond bur, (2)surface cleaning with 37%ortophosphoric acid, (3)bonding, (4)repair composite application. After 5000 thermalcycles, the specimens were mounted on a universal-testing-machine and shear-forcewas applied at a cross-head-speed of 0.5 mm/min until failure. The failure modes wereexamined using a scanning-electron-microscopy. The statistical analysis wasperformed by using one-way ANOVA and Tukey's post-hoc tests.Results: The highest mean shear-bond-strength value was found in GroupC(8.07±3.05 MPa). The mean values for GroupA and B were 7.67±2.75 MPa and3.07±1.23 MPa, respectively. In GroupC and A, the adhesives had significantly highershear-bond-strength values than GroupB (p<0.001), no statistically significantdifference between GroupA and C (p>0.05). While, failure modes were all adhesivetype in Group B, there was cohesive failures in GroupA and C as: 86.7% and 66.7%,respectively.Conclusion: It can be concluded that since two-step application has no difference withsilane containing Tokuyama universal bond system in bonding strength and the Singlebond universal system has less bond-strength than both other 2 systems, the bondingstrength is not directly related to the application type.
This study was aimed to evaluate the shear-bond-strength values of differenttypes of adhesive bonding systems in feldspathic ceramic repair.Material and Method: A forty-five alumina-reinforced feldspathic ceramic discswere prepared, and randomly divided into 3 groups; GroupA: Silane+Adhesivewithout silane application (two-step), GroupB: Silane containing adhesive application(one-step, one-bottle), GroupC: Silane containing adhesive application (one-step, 2-bottles). The samples were treated simulating intraoral ceramic repair steps such as:(1)ceramic surface treatment with a diamond bur, (2)surface cleaning with 37%ortophosphoric acid, (3)bonding, (4)repair composite application. After 5000 thermalcycles, the specimens were mounted on a universal-testing-machine and shear-forcewas applied at a cross-head-speed of 0.5 mm/min until failure. The failure modes wereexamined using a scanning-electron-microscopy. The statistical analysis wasperformed by using one-way ANOVA and Tukey's post-hoc tests.Results: The highest mean shear-bond-strength value was found in GroupC(8.07±3.05 MPa). The mean values for GroupA and B were 7.67±2.75 MPa and3.07±1.23 MPa, respectively. In GroupC and A, the adhesives had significantly highershear-bond-strength values than GroupB (p<0.001), no statistically significantdifference between GroupA and C (p>0.05). While, failure modes were all adhesivetype in Group B, there was cohesive failures in GroupA and C as: 86.7% and 66.7%,respectively.Conclusion: It can be concluded that since two-step application has no difference withsilane containing Tokuyama universal bond system in bonding strength and the Singlebond universal system has less bond-strength than both other 2 systems, the bondingstrength is not directly related to the application type.
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Feldspatik seramik, tamir, makaslama bağlanma dayanımı.
Feldspathic ceramic, Repair, Shear-bond-strength.