Four-point flexural strength and microtensile bond strength of digitally and conventionally veneered zirconia
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Tarih
2023
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Wiley
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
This study intended to evaluate the effect of digital veneering on four-point flexural strength (FS) and microtensile bond strength (mu TBS) of veneered zirconia. Two different zirconia blocks, a lithium disilicate and a feldspathic ceramic block, and two different layering ceramics were used. IPS e.max Zir CAD (ZC) and Vita In-Ceram YZ (YZ) with yttria stabilized tetragonal zirconia polycrystals (3Y-TZP) were used as substructures. IPS e.max CAD (LD), Vita Mark II (VMII), IPS e.max Ceram (EC) and Vita VM9 (VM9) were used for veneering. Resin cement and fusion ceramic were placed between veneer and zirconia substructure for digital veneering. A total of one hundred and fifty specimens in five groups (n = 30) were prepared for FS and tested in universal machine at 1.0 mm/min. One hundred specimens in five groups (n = 20) were obtained for the mu TBS and tested at 1.0 mm/min. Statistical analysis was made by one way ANOVA and Tukey HSD. Conventional veneering showed statistically significant FS. ZC veneered with EC had the highest mean FS and the lowest was obtained in groups veneered through resin cement. YZ layered with VM9 had the highest mean mu TBS. ZC veneered through fusion ceramic and YZ veneered through resin cement showed significantly lower and similar mu TBS.
Açıklama
Anahtar Kelimeler
computer-aided design; materials testing; resin cements; tensile strength; zirconia
Kaynak
European Journal of Oral Sciences
WoS Q Değeri
Q2
Scopus Q Değeri
Q2
Cilt
131
Sayı
2
