LED ile ısı uygulamasının geleneksel yapıştırıcı cam iyonomer simanların mekanik özellikleri üzerine etkisi

Yıl 2023, Cilt: 40 Sayı: 2, 29 - 36, 02.05.2023

Buşra Uysal Uzunoğlu , Beyza Ballı Akgöl , Merve Bayram , Tamer Tuzuner

https://doi.org/10.17214/gaziaot.1071117

Öz

Amaç: Bu çalışmanın amacı, çocuk diş hekimliğinde yer tutucu apareylerin bantlarını simante etmek için kullanılan geleneksel yapıştırıcı cam iyonomer simanlara sertleşme esnasında LED ile ısı uygulamasının mekanik özellikleri üzerine etkisini in vitro olarak değerlendirmektir.
Gereç ve Yöntem: Çalışmada Ketac Cem radyoopak, Meron ve Kavitan Cem marka geleneksel yapıştırıcı cam iyonomer simanlar, ısı kaynağı olarak 1200mW/cm2 ışık yoğunluğuna sahip Elipar S10 LED ışık cihazı kullanıldı. Basma dayanımı testi için 6 mm yüksekliğe 4 mm genişliğe sahip teflon kalıp, çapsal çekme dayanım testi için ise 3 mm yüksekliğe 6 mm genişliğe sahip metal kalıp hazırlandı. Materyaller ısı uygulanmayan kontrol grubu, 60 saniye ve 90 saniye LED ile ısı uygulanan çalışma grupları olmak üzere üç alt gruba ayrıldı (n=10; her bir grup için). Isı uygulaması, “yönlendirilmiş sertleşme” gerçekleşmesi için kalıba yerleştirilen simanların sertleşmesi esnasında uygulandı. Mekanik dayanıklılık testleri geleneksel cam iyonomer simanların sertleşme süresi bitiminden 24 saat sonra yapıldı. Elde edilen verilerin değerlendirilmesinde İki-Yönlü ANOVA testi kullanıldı. Devam testleri olarak Tek Yönlü ANOVA testi ve post hoc değerlendirmelerinde Tukey HSD test ve/veya Tamhane’s T2 test kullanıldı. Anlamlılık p<0.05 düzeyinde değerlendirildi.
Bulgular: Çalışmada her üç materyalde çapsal çekme dayanıklılığı açısından kontrol grupları ve ısı uygulanan gruplar arasında istatistiksel olarak anlamlı farklılık görülmedi. Isı uygulanan Meron (p<0.01) ve Kavitan Cem (p<0.01) siman örneklerinde basma dayanıklılığı artarken, Ketac Cem’de (p<0.05) belirgin bir etkisi olduğu görülmedi.
Sonuç: Çalışmamızda ısı uygulamasının geleneksel cam iyonomer simanların mekanik özelliklerini olumlu yönde etkilediği saptandı.

Anahtar Kelimeler

Cam iyonomer sementler, gerilme direnci, sıkıştırıcı kuvvet

The effect of LED application on the mechanical properties of conventional luting glass ionomer cements

Öz

Objective: The aim of this study was to evaluate the effect of heat application with LED on mechanical properties of conventional luting glass ionomer cements.
Materials and Method: Ketac Cem Radiopaque, Meron and Kavitan Cem as luting glass ionomer cements, LED light curing unit Elipar s10 (1200mW/cm2) as heat source was used. For compressive strength test, samples were prepared in teflon molds (depth:6mm/diameter:4mm), and for the diametral tensile strength test samples were prepared in metallic molds (depth:3mm/diameter:6mm). Samples were evaluated using three different preparation methods; no heat, heat by means of a LED curing unit for 60, and 90 seconds (n=10). Heat was applied to cements placed in the mold to apply ‘command set’ method when setting occurred. All mechanical tests were carried out 24 hours following the setting of glass ionomer cements. Data was evaluated using two-way ANOVA. A p-value<0.05 was considered as statistically significant.
Results: Heat application had no statistically significant effect on diametral tensile strength between control and heated groups of three GICs. Heating the luting glass ionomer cements with LED curing light during setting has resulted in both a command set and an improvement in the final compressive strength values for Meron (p<0.01) and Kavitan Cem (p<0.01) samples. Statistical analysis revealed that heat application had no statistically significant effect on the mechanical behavior of Ketac Cem (p<0.05).
Conclusion: The diametral tensile strength was not enhanced by heat application, but its positive effect on the compressive strength values depends on the materials’ properties and heating time.

Anahtar Kelimeler

compressive strength, tensile strength, glass ionomer cements

Kaynakça

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