Influence of Various Laser Surface Modifications on SBS of Titanium and Zirconium Oxide Substructures

Year 2017, Volume: 38 Issue: 2, 245 - 255, 24.04.2017

Ayşegül Göze Saygın , Ali Kemal Özdemir Oğuzhan Görler

https://doi.org/10.17776/cumuscij.297820

Cited By: 3

Abstract

In
prosthodontics, to increase the bonding of metals with porcelain by several
means including laser surface treatments is still an important research topic.
The current study was undertaken to evaluate the influence of surface treatment
with Ho:YAG, Er:YAG, and Nd:YAG lasers on the shear bond strength (SBS) of low
fusion dental porcelain to titanium and zirconium oxide substructures. Titanium
(n=70) and zirconium oxide (n=70) specimens were categorized into 7 study
groups (n=10): sandblasting, Er:YAG 1.5W and 2.5W, Nd:YAG 1.5W and 2.5W, and
Ho:YAG 4W and 10W. Their surface morphology was examined with under scanning
electron microscopy (SEM) after surface treatment. After application of low
fusion dental porcelain, the SBS test was performed applying a universal
testing machine. In the titanium specimens, the SBSs of the Nd:YAG laser 2.5W
and 1.5W were significantly higher than those of the sandblasting and other
lasers, respectively (p<0.05); In the zirconium oxide specimens, the SBSs of
the sandblasting, Nd:YAG 1.5W and Nd:YAG 2.5W lasers were significantly higher
than those of the other lasers, respectively (p<0.05); In the titanium
specimens, Er:YAG 1.5W, Nd:YAG 2.5W, and Ho:YAG 10W lasers provided
significantly higher SBSs compared to those in the zirconium oxide specimens
(p<0.05). To increase SBS of low fusion porcelain with titanium and
zirconium oxide substructures, Nd:YAG laser is more successful compared to
Er:YAG and Ho:YAG lasers. The laser applications provide different SBS results
although there are no obvious differences among their surfaces by SEM; this
requires further research in order to clarify the mechanism of these
differences.

Keywords

Ho:YAG laser, Nd:YAG laser, Er:YAG laser, shear bond strength, titanium, zirconium, low-fusion dental porcelain, CAD/CAM, CAD/CAM

Zirkonyum Oksit ve Titanyum Metal Alt Yapıların SBS Üzerine Farklı Lazer Yüzey Uygulamalarının Etkisi

Abstract

Protetik
diş tedavisinde lazer yüzey uygulamalarını da içeren birçok yöntem, porselen
alt yapı ile metalin bağlantısını arttırmak için halen önemli bir araştırma konusudur.
Çalışma; titanyum ve zirkonyum oksit alt yapılara uygulanan düşük ısı
porseleninin makaslama bağlantı dayanımına (SBS); Ho:YAG, Er:YAG ve Nd:YAG
lazer ile yüzey şartlandırmalarının etkisini geliştirmeyi amaçlamıştır. Titanyum
(n=70) ve zirkonyum oksit (n=70) örnekler 7 çalışma grubuna ayrılmıştır (n=10):
Kumlama, Er:YAG 1.5 W ve 2.5 W, Nd:YAG 1.5 W ve Er:YAG 2.5 W, ve Ho:YAG 4W VE
10 W. Yüzey morfolojileri, şartlandırma sonrasında taramalı elektron mikroskobu
(SEM) altında incelenmiştir. Dental düşük ısı porseleninin uygulanmasından
sonra SBS testi universal test makinesi kullanılarak yapılmıştır.  Titanyum örneklerde Nd:YAG lazer 2.5 W ve 1.5
W SBS sırasıyla kumlama ve diğer lazerlerden önemli ölçüde yüksektir
(p<0.05). Zirkonyum oksit örneklerde Kumlama, Nd:YAG 1.5W and Nd:YAG 2.5W
lazerler sırasıyla diğer lazerlerden önemli ölçüde yüksektir.  Titanyum örneklerde Er:YAG 1.5W, Nd:YAG 2.5W,
ve Ho:YAG 10W lazer zirkonyum oksit örnekler ile karşılaştırıldığı zaman
SBS  önemli derecede üstünlük sağlamıştır
(p<0.05). Titanyum ve zirkonyum oksit alt yapılar ile düşük ısı porseleninin
SBS artırmak için Nd:YAG lazer Er:YAG ve Ho.YAG ile karşılaştırıldığı zaman
daha başarılıdır. SEM vasıtasıyla yüzeyleri arasında belirgin bir fark
olmamasına rağmen lazer uygulamaları farklı SBS sonuçları sağlamıştır ; bu
durum bu farkların işleyişini açıklamak için daha fazla araştırmayı
gerektirmektedir.

Keywords

Ho: YAG Lazer, Nd: YAG Lazer, Er:YAG Lazer, Makaslama Bağlantı Dayanımı, Titanyum, Zirkonyum Oksit, Dental Düşük Isı Porseleni, CAD/CAM

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