Hüseyin Gürkan Güneç, Hüseyin Hamza Onay, Beril Ekinci, Ayşegül Özyer Yaran, Tennur Kasim, Aleyna Danac

Rehber yol eğelerin metalurjik - mekanik özelliklerinin ve şekillendirme hareketlerinin değerlendirilmesi

Diş hekimleri arasında endodontik tedavi çıplak gözle görül- meyen bir alanda uygulandığı için genellikle zor ve uzun sü- ren bir tedavi seçeneği olarak kabul edilmektedir. Tedavinin içerisinde oluşabilecek çeşitli zorluklar da ağırlıklı olarak kul- lanılan endodontik aletlerden kaynaklanmaktadır. Nikel-titan- yum (NiTi) eğeler, şekil hafızası ve süper elastiklik özellikleri sayesinde geleneksel paslanmaz çelik eğelere göre kök ka- nallarında komplikasyon görülme riskini düşürmektedir. NiTi eğelerin sahip olduğu bu tip mekanik özellikler sayesinde, endodontik aletler, kök kanalı içerisinde farklı hareketleri kul- lanarak tedaviyi rahat bir şekilde bitirebilmektedir. Tedavinin başlangıç aşamasında ise kök kanal anatomisine uygun bir rehber yol dengesi tutturmak çok önemlidir. Bundan dolayı endodontik tedavide kullanılan tüm NiTi sistemlerin içerisin- de mutlaka bir glide path sistemi de yer almalıdır. Bu derleme- nin amacı; endodontide sıklıkla kullanılan rehber yol eğeleri ve hareketleri değerlendirerek, NiTi alaşımların metalürjik ya- pısı ve mekanik özelliklerini özetlemektir.

Evaluation of metallurgical- mechanical properties of Glide Path files and shaping movements

Endodontic treatment is not a visible area to the naked eye, generally considered as a difficult and long-term treatment option among dentists. Various difficulties, that may occur in the treatment, originate mainly from the using endodon- tic instruments. Nickel-titanium (NiTi) files reduce the risk of complications in root canals compared to conventional stain- less steel files, under favour of their shape memory and super elasticity. By means of such mechanical features of NiTi files, endodontic instruments can comfortably finish the treatment using different movements within the root canal. In the initial part of the treatment, it is very important to ensure a guideline balance suitable for the root canal anatomy. Therefore, a glide path system should be included in all using NiTi systems in endodontic treatment. The purpose of this review is to eva- luate the glide path files and motions commonly used in en- dodontics and to summarize the metallurgical structure and mechanical properties of NiTi alloys.

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