The Effect of Different Sintering Methods and Block Color on Bond Strength between Monolithic Zirconia and Resin Cement

Yıl 2023, , 497 - 502, 25.12.2023

Cansu Yeşildaş , Burcu Kanat

https://doi.org/10.15311/selcukdentj.1203772

Öz

Background: The aim of the study is to examine the effects of different sintering methods and block color on shear bond strength between monolithic zirconia and adhesive resin cement.
Methods: Self-colored (InCoris TZI C A2, Sirona) (CZ) and colorless (InCoris TZI, Sirona) (Z) monolithic zirconia blocks were cut into cubes of 4mm×4mm×4mm after sintering (n=40). Colored and colorless samples were divided into 2 subgroups as conventional sintering (CS) and speed sintering (SS) (n=10). Primer was applied after sandblasting the samples fixed in acrylic. The adhesive resin cement (diameter: 2mm, height: 2mm) was shaped and polymerized. Data, obtained from the application of the shear bond test (SBS), was statistically analyzed (SPSS 26, 2-way ANOVA, independent t-test) (p=0.05). Fracture types were classified.
Results: The highest SBS value was observed in the CS-Z group (25.13±8.47), and the lowest SBS value was observed in the SS-Z group (14.89±7.08). While sintering methods had a statistically significant effect on SBS values (p=0.006), the color feature of monolithic zirconia did not have a significant effect (p>0.05). Statistically higher values were found in the colorless blocks compared to the SS group (14.89±7.08) in the CS group (25.13±8.47) (p=0.009). However, the difference between SS (17.99±5.21) and RS (20.89±7.31) in the colored blocks was not significant (p>0.05). There was no significant difference between Z and CZ groups in both speed and conventional sintering (p>0.05).
Conclusion: It was concluded that different sintering methods affect the shear bond strength between colorless monolithic zirconia blocks and adhesive cement, but not the shear bond strength between colored monolithic zirconia blocks and adhesive resin cement. Whether the blocks were pre-colored or colorless did not affect the shear bond strength between monolithic zirconia and adhesive cement.
Keywords: Monolithic zirconia, conventional sintering, speed sintering, colored block, shear bond strength

Anahtar Kelimeler

Hızlı sinterizasyon, konvansiyonel sinterizasyon, makaslama bağ dayanımı, monolitik zirkonya, renklendirilmiş blok

Farklı Sinterizasyon Yöntemlerinin ve Blok Renginin Monolitik Zirkonya ile Adeziv Rezin Siman Arasındaki Bağ Dayanımına Etkisi

Öz

Amaç: Bu çalışmanın amacı; farklı sinterizasyon yöntemlerinin ve blok renginin monolitik zirkonya ile adeziv rezin siman arasındaki makaslama bağ dayanımı üzerindeki etkilerinin incelenmesidir.
Gereç ve Yöntemler: Kendinden renkli (InCoris TZI C A2, Sirona) (CZ) ve renksiz (InCoris TZI, Sirona) (Z) monolitik zirkonya blokları, sinterizasyon sonrası 4mm×4mm×4mm boyutlarında olacak şekilde küpler halinde kesildi (N=40). Renkli ve renksiz örnekler, konvansiyonel sinterizasyon (KS) ve hızlı sinterizasyon (HS) olmak üzere 2 alt gruba ayrıldı (n=10). Akrilik içerisinde sabitlenen örnekler kumlandıktan sonra primer uygulandı. Adeziv rezin siman (çap:2mm, yükseklik:2mm) şekillendirildi ve polimerize edildi. Makaslama bağ dayanım (SBS) testinin (Bisco, ABD, 0.5 mm/dk) uygulanması ile elde edilen verilerin istatistiksel analizi (SPSS 26, 2-yönlü ANOVA, bağımsız t-testi) gerçekleştirildi (p=0.05). Kırık tipleri sınıflandırıldı.
Bulgular: En yüksek SBS değeri KS-Z (25.13±8.47) grubunda, en düşük SBS değeri ise HS-Z (14.89±7.08) grubunda gözlendi. SBS değerleri üzerinde sinterizasyon yöntemlerinin istatistiksel açıdan anlamlı etkisi bulunurken (p=0.006) monolitik zirkonyanın renkli olma özelliğinin anlamlı etkisi görülmedi (p>0.05). Renksiz bloklarda, KS (25.13±8.47) grubunda HS (14.89±7.08) grubuna göre istatistiksel olarak yüksek değerler bulundu (p=0.009). Renkli bloklarda ise HS (17.99±5.21) ve KS (20.89±7.31) grupları arasındaki farkın istatistiksel açıdan anlamlı olmadığı görüldü (p>0.05). Hem hızlı hem de konvansiyonel sinterizasyonda ise Z ve RZ grupları arasında anlamlı bir farklılık bulunmadı (p>0.05).
Sonuç: Farklı sinterizasyon yöntemlerinin, renksiz monolitik zirkonya bloklar ile adeziv siman arasındaki makaslama bağ dayanımını etkilerken renkli monolitik zirkonya bloklar ile adeziv rezin siman arasındaki makaslama bağ dayanımını etkilemediği bulundu. Blokların önceden renklendirilmiş veya renklendirilmemiş olması, monolitik zirkonya ile adeziv siman arasındaki makaslama bağ dayanımını etkilemedi.
Anahtar Kelimeler: Hızlı sinterizasyon, konvansiyonel sinterizasyon, makaslama bağ dayanımı, monolitik zirkonya, renklendirilmiş blok

Anahtar Kelimeler

Hızlı sinterizasyon, konvansiyonel sinterizasyon, makaslama bağ dayanımı, monolitik zirkonya, renklendirilmiş blok

Destekleyen Kurum

Kocaeli Üniversitesi Diş Hekimliği Fakültesi

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