Simüle Edilmiş Sabit Ortodontik Apareylerin Florür İçeren Yapay Tükürükte Nikel ve Krom İyon Salınımının Araştırılması

Year 2024, , 183 - 194, 26.06.2024

Serap Titiz Yurdakal , Safiye Elif Korcan , Atıf Koca , Elif Esin Hameş

https://doi.org/10.55546/jmm.1485312

Abstract

Florür, anti-karyojenik etkisi nedeniyle birçok ağız hijyeni ürününde bulunur. Ancak florürün, uygulama anında başlayan ve rezidüel tükürükte kalan florür ile devam eden korozif etkisi vardır. Bu çalışma, farklı florür konsantrasyonlarının, bakır-nikel-titanyum (Cu-NiTi), nikel-titanyum (NiTi) ve paslanmaz çelik (SS) ark tellerinden yapılmış simüle edilmiş sabit ortodontik apareylerden nikel ve krom iyonlarının salınımı üzerindeki etkisini araştırmayı amaçlamıştır. Deney gruplarındaki simüle ortodontik apareyler, bir saat boyunca 125, 500 veya 900 ppm florür (NaF) ve on bir saat boyunca 0,1 ppm florür içeren Klimek yapay tükürüğüne batırıldı. Sonraki dönemlerde de süreç tekrarlandı. Kontrol grupları sadece Klimek yapay tükürüğüne maruz bırakıldı. Klimek yapay tükürüğüne salınan nikel ve krom iyonlarının miktarları, endüktif eşleşmiş plazma kütle spektroskopisi (ICP-MS) kullanılarak ölçüldü. Ark tellerinin morfolojik özellikleri atomik kuvvet mikroskobu (AFM) ve taramalı elektron mikroskobu (SEM) kullanılarak incelenmiştir. SS ark tellerinin daldırma öncesi ve sonrası ortalama pürüzlülük değeri Cu-NiTi veya NiTi ark tellerine göre daha düşüktü (p<0.05). SS ark tellerine sahip simüle ortodontik apareyler, 125 ppm florür içeren deney gruplarında Cu-NiTi ve NiTi ark tellerine sahip simüle ortodontik apareylere göre daha fazla krom iyonu açığa çıkarmıştır (p<0.05). SS ark tellerine sahip simüle edilmiş sabit ortodontik apareyler, hem kontrol hem de deney gruplarında Cu-NiTi ark tellerine sahip simüle edilmiş sabit ortodontik apareylere göre daha az nikel iyonu salımına neden olmuştur (p<0.05). Ek olarak, SS ark telleri ile simüle edilmiş sabit ortodontik apareyler, kontrol ve 500 ppm florür içeren deney gruplarındaki NiTi ark tellerine göre daha az nikel iyonu salımına neden olmuştur (p<0.05). (p<0.05).

Keywords

Florür etkisi, Korozyon, Ark Teli, Paslanmaz Çelik, Cu-NiTi, Ni-Ti

Ethical Statement

Çalışma için etik kurul gerekmemektedir.

Supporting Institution

Tübitak

Project Number

319S015

Investigation of Nickel and Chromium Ion Release from Simulated Fixed Orthodontic Appliances in Artificial Saliva Containing Fluoride

Abstract

Fluoride is found in many oral hygiene products due to its anti-cariogenic effect. However, fluoride has a corrosive effect that begins at the time of application and continues with the fluoride remaining in the residual saliva. This study aimed to investigate the effect of different fluoride concentrations on the release of nickel and chromium ions from simulated fixed orthodontic appliances made of copper-nickel-titanium (Cu-NiTi), nickel-titanium (NiTi) and stainless steel (SS) archwires. Simulated orthodontic appliances in the experimental groups were immersed in Klimek artificial saliva containing 125, 500, or 900 ppm fluoride (NaF) for one hour and 0.1 ppm fluoride for eleven hours. The process was repeated in subsequent periods. Control groups were exposed to only Klimek artificial saliva. The amounts of nickel and chromium ions released into Klimek artificial saliva were measured using inductively coupled plasma mass spectroscopy (ICP-MS). The morphological characteristics of the archwires were examined using atomic force microscopy (AFM) and scanning electron microscopy (SEM). The average roughness value of SS archwires before and after immersion was lower than that of Cu-NiTi or NiTi archwires (p<0.05). Simulated orthodontic appliances with SS archwires released more chromium ions than simulated orthodontic appliances with Cu-NiTi and NiTi archwires in experimental groups with 125 ppm fluoride (p<0.05). Simulated fixed orthodontic appliances with SS archwires released fewer nickel ions than simulated fixed orthodontic appliances with Cu-NiTi archwires in both control and experimental groups (p<0.05). Additionally, simulated fixed orthodontic appliances with SS archwires released fewer nickel ions than those with NiTi archwires in control and experimental groups with 500 ppm fluoride (p<0.05).

Keywords

Fluoride effect, Corrosion, Archwire, Stainless Steel, Cu-NiTi, Ni-Ti

Project Number

319S015

Thanks

The authors would like to thank The Scientific and Technological Research Council of Türkiye (TUBİTAK, project number 319S015).

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