KUMLAMA İŞLEMİNDE KULLANILAN KUM PARTİKÜLLERİNİN BÜYÜKLÜĞÜ VE BASINÇ FARKLILIĞININ ZİRKONYUM VE REZİN SİMAN BAĞLANMA DAYANIMI ÜZERİNE ETKİSİ≠

Year 2017, , 107 - 112, 14.06.2017

Nuran Yanıkoğlu Hatice Özdemir Melike Pınar Yıldırım Cenk Burak Yılmaz

https://doi.org/10.17567/ataunidfd.321462

Cited By: 1

Abstract

Amaç: Bu çalışmanın amacı, aluminyum oksit ile kumlama
işleminde kullanılan kumun partikül büyüklüğü ve püskürtme basıncının zirkonyum
- rezin siman bağlanma dayanımına etkisini değerlendirmektir.

Gereç ve Yöntem: Bu çalışma için 100 adet zirkonyum örnek
(10 mm çap ve 2 mm kalınlık) laboratuvarda hazırlandı. Örnekler akrilik rezin
bloklara gömüldü. Örnek yüzeyleri cila diskleriyle düzeltildikten sonra
gruplara ayrıldı. 1.Grup: 2.8 atm basınçla Co-Jet (30 µm büyüklüğünde silanize
Al₂O₃ tozu); 2.Grup: 3.5 atm basınçla Co-Jet; 3.Grup: 2.8
atm basınçta 30 µm büyüklüğündeki Al₂O₃ tozuyla kumlama;
4.Grup: 2.8 atm basınçta 110 µm büyüklüğünde Al₂O₃ tozuyla
kumlama; 5.Grup: 3.5 atm basınçta 30 µm büyüklüğündeki Al₂O₃ tozuyla
kumlama; 6.Grup: 3.5 atm basınçta 110 µm büyüklüğündeki Al₂O₃ tozuyla
kumlama; 7.Grup: 3.Gruptaki işlem+Silan; 8.Grup: 4.Gruptaki işlem+Silan;
9.Grup: 5.Gruptaki işlem+Silan ve 10.Grup: 6.Gruptaki işlem+Silan. Yüzey
işlemlerinden sonra örnek yüzeylerine kompozit diskler (5 mm çap ve 4 mm
yükseklik) Panavia F 2.0 rezin siman ile yapıştırıldı. Sonra örnekler sırasıyla
universal bir test cihazına yerleştirilerek makaslama kuvveti uygulandı. Elde
edilen veriler Varyans analizi ve Tukey HSD testi ile değerlendirildi.

Bulgular: Verilerin analizi sonucu en yüksek bağlanma
dayanımı 10.Grupta (25.52±0.59 MPa) görülürken; en düşük bağlanma dayanımı
değeri de 3.Grupta (15.08±0.41 MPa) görüldü. Gruplar arasındaki farklar
istatistiksel olarak anlamlı bulundu ( p<0.01)

Sonuç: Verilerin analizine göre, kumun partikül
büyüklüğü ve püskürtme basıncı arttıkça zirkonyum ve rezin siman arasındaki
bağlanma dayanımının arttığı görülmektedir. Ayrıca, kumlama sonrası silan
uygulaması da bağlanma dayanımını artırmaktadır.

Anahtar Kelimeler: Zirkonyum, Rezin
siman, Bağlanma dayanımı, Püskürtme basıncı,Kum büyüklüğü

EFFECT OF DIFFERENT
PRESSURE AND SIZE OF POWDER PARTICULES USED IN SANDBLASTİNG ON BOND STRENGTH OF
ZIRCONIUM AND RESIN CEMENT

ABSTRACT

Aim: The purpose of this study to evaluate the effect of
size of powder particules and pressure of spraying used in sandblasting with
aluminium oxide on bond strength between zirconium and resin cement.

Material and Methods: A total of 100 zirconium specimen (10
mm diameter and 2 mm thickness) were prepared in laboratory. The specimens
embedded in acrylic resin blocks. After smoothening of specimens surface,
specimens seperated the groups. 1.Group: Co-Jet at 2.8 atm pressure (Silica coated Al₂O₃ powder); 2.Group: Co-Jet at
3.5 atm pressure; 3.Group: Sandlasting with 30 µm Al₂O₃
powder at 2.8 atm pressure; 4. Group: Sandlasting with 110 µm Al₂O₃
powder at 2.8 atm pressure; 5.Group: Sandlasting with 30 µm Al₂O₃
powder at 3.5 atm pressure; 6.Group: Sandlasting with 110 µm Al₂O₃
powder at 3.5 atm pressure; 7.Group:3.Group+Silane; 8.Group: 4.Group+Silane;
9.Group: 5.Group+Silane; 10.Group: 6.Group+Silane. After the surface
treatments, composite discs (5 mm diameter and 4 mm height) bonded to specimens
surface with Panavia F 2.0 resin cement. Then, specimens were placed in an universal
testing machine respectively. The shear bond strength test was performed. The
data were analyzed with analyses of Variance and Tukey HSD test.

Results: While the highest bond strength was obtained in the 10.Group (25.52±0.59 MPa), the
lowest bond strenth was obtained in the 3.Group (15.08±0.41 MPa). The
differences between the groups were found found to be statistically significant. (p<0.01)

Coclusion: According to the
analyses of data, when the size of powder particules and pressure of sandblasting
device increased, the bond strenth between zirconium and resin cement
increased. Furthermore, the application of silane after the sandblasting were
increased the bond strength.

Key
words:
Zirconium, Resin cement, Bond strength, Pressure of spraying, Size of powder

Keywords

Zirkonyum, Rezin siman, Bağlanma dayanımı, Püskürtme basıncı

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