RADİKÜLER DENTİNE ER:YAG LAZER UYGULAMASININ CAD/CAM İLE ÜRETİLMİŞ ZİRKONYUM POSTLARIN OVAL KÖK KANALLARINA PUSH-OUT BAĞLANMA DAYANIMINA ETKİSİ

Year 2019, Volume: 29 Issue: 4, 563 - 569, 15.10.2019

İsmail Uzun Cangül Keskin

https://doi.org/10.17567/ataunidfd.443513

Abstract

Amaç: Bu orijinal araştırmanın amacı, kök duvarlarında Er:YAG
lazer kullanımının, oval kök kanallarında açılan post boşluklarına özel olarak Bilgisayar Yardımıyla
Tasarım / Bilgisayar Yardımıyla Üretim (CAD/CAM) teknolojisiyle hazırlanan zirkonyum postların
push-out bağlanma dayanımına etkisini değerlendirmektir.

Gereç ve Yöntemler: Çalışmaya yapılan radyolojik
muayene sonucunda seçilen, oval kök kanal konfigürasyonuna sahip 40 diş dahil
edildi. Kök kanal tedavisinin tamamlanmasının ardından ultrasonik uçlarla post
boşluğu hazırlandı. Örnekler rastgele şekilde, post boşluğu duvarlarına Er:YAG
uygulanıp uygulanmamasına göre iki gruba ayrıldı (n=20). Her bir örnek için
post boşluğunun taranmasıyla freze cihazıyla eksiltme yöntemi ile yttria
stabilize tetragonal zirkonyum polikristal (Y-TZP) bloklarından zirkonya
postlar üretildi. Postlar sinterlendikten sonra simante edildi. Push-out
bağlanma testi uygulandı ve elde edilen veriler t-testi ile chi-square testi
kullanılarak istatistiksel olarak değerlendirildi.

Bulgular: Kök kanal duvarlarına Er:YAG lazer uygulaması yapılmış
olan grubun push-out bağlantı değerleri, lazer uygulamayan gruba göre anlamlı
oranda yüksek bulunmuştur (p<0.05).

Sonuç: Radiküler dentine Er:YAG lazer uygulaması push-out
bağlanma değerlerini arttırmıştır.

Anahtar kelimeler: Endodonti, diş restorasyonu, zirkonyum post, Er:YAG lazer
 

The Effect of Er:YAG Laser Preatreatment of Radicular
Dentin on the Push-out Bond Strength of CAD/CAM Fabricated Milled Zirconia
Posts in Oval Root Canals

Abstract

Aim: This original research study aimed to evaluate the
effect of Er:YAG laser irradiation of post spaces prepared in oval root canals
on the push-out bond strenght of zirconia posts manufactured by Computer Aided
Design / Computer Aided Manufacturing (CAD/CAM) technology.

Materials and methods: Forty teeth showing oval root
canal configuration were included to the study following the radiological
examination. Post spaces were prepared with ultrasonic tips after the completion
of root canal treatment. Specimens were divided into two groups randomly either
they were irradiated with Er:YAG lasers or not (n=20). For each specimen,
zirconium posts were produced by milling from yttria-tetragonal zirconia polycrystal
(Y-TZP) blocks. Posts were sintered and luted in the post spaces of specimens.
Push-out bond strenght test was performed and data was statistically analyzed
using t-test and chi-square test.

Results: The push-out bond strenght values of the group, which
specimens were irradiated with Er:YAG laser were significantly higher when
compared to non-lased group (p<0.05).

Conclusion: Er:YAG laser pretreatment of radicular dentin improved
the push-out bond strenght values.

Key Words: Endodontics, dental restoration, zirconium posts, Er:YAG
laser

Keywords

Endodonti, diş restorasyonu, zirkonyum post

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