Beyazlatıcı Özellikli Diş Macunlarının Yeni Nesil Akışkan Rezin Kompozitlerin Yüzey Özelliklerine Etkisinin Değerlendirilmesi

Abstract

Amaç: Bu in vitro çalışmanın amacı, beyazlatıcı diş macunuyla fırçalamanın, yeni nesil yüksek dolduruculu akışkan kompozit rezinlerin yüzey özellikleri üzerine etkisinin incelenmesidir. Gereç ve Yöntemler: Çalışmada Gaenial Injectable Flow, Clearfil Majesty Flow, Omnichroma Flow, One Shade olmak üzere; 3 farklı yüksek dolduruculu akışkan kompozit rezinden 8 mm çapta 90 adet örnek hazırlandı ve polimerize edildi (Valo Grand, Ultradent, ABD). Örnekler disk polisaj sistemi (Sof-Lex Discs, 3M ESPE, ABD) ve Diamond Cila Sistem Kiti (Sof-Lex, 3M ESPE, ABD) ile bitim ve cila işlemlerine tabi tutuldu. Basınç sensörlü ve kuvvet ayarlı fırçalama cihazı, 6 aylık fırçalamayı taklit edebilmesi için 5.000 döngüye ayarlandı. RDA (Göreceli Dentin Aşındırıcılığı) değerlerine göre seçilmiş beyazlatıcı diş macunu (R.O.C.S Aktif Kalsiyum Beyazlatıcı Diş Macunu, DRC Grup, İsviçre), bir geleneksel diş macunu (Sensodyne Promine Günlük Koruma Diş Macunu, GSK Group of Companies, UK) ve distile su ile fırçalama yapıldı (1:2 oranında (EN ISO 14569- 2007 standart) diş macunu/su). Fırçalama periyotları öncesi ve sonrası pürüzlülük, mikrosertlik ve SEM ölçümleri yapıldı. Veriler, SPSS v29 programında istatistiksel olarak değerlendirildi. Bulgular: Bu çalışmada, farklı diş macunlarının ve akışkan kompozit rezin materyallerinin pürüzlülük ve mikrosertlik üzerindeki etkileri incelendi. R.O.C.S. grubunda pürüzlülük artışı en yüksek bulunurken (p<0.001), mikrosertlik azalışında anlamlı fark gözlendi (p=0.041). En pürüzsüz kompozit GC Gaenial Universal Injectable Flow, en sert kompozit Kuraray Clearfil Majesty Flow olarak belirlendi. Sonuçlar: Çalışmamızın sonuçlarına göre diş macunlarının RDA değerine bağlı olarak akışkan kompozitlerin yüzey özelliklerini anlamlı şekilde etkilediği ortaya koyulmuştur. Yüksek RDA değerli macunlar pürüzlülüğü artırırken, mikrosertliği belirgin şekilde azaltmıştır.

Keywords

• Akışkan kompozit rezin
• Beyazlatıcı diş macunu
• Diş fırçalama
• Mikrosertlik
• Yüzey pürüzlülüğü

Evaluation of The Effects of Whitening Toothpastes on the Surface Properties of New Generation Flowable Composite Resins

Abstract

Objective: This in vitro study aims to investigate the effects of brushing with whitening toothpaste on the surface properties of new-generation flowable composites with high filler content. Materials and Methods: Three high-filler flowable composites GC Gaenial Injectable Flow, Kuraray Clearfil Majesty Flow, and Tokuyama Omnichroma Flow, One Shade were investigated. Ninety disc-shaped specimens (8 mm in diameter) were fabricated and polymerized (Valo Grand, Ultradent, USA). Specimens underwent finishing and polishing using a disc-based system (Sof-Lex Discs, 3M ESPE, USA) and a diamond polishing kit (Sof-Lex, 3M ESPE, USA). A force-controlled brushing simulator equipped with a pressure sensor performed 5,000 brushing cycles to simulate six months of brushing. Brushing was conducted using a whitening toothpaste (R.O.C.S. Active Calcium Whitening, DRC Group, Switzerland), a regular toothpaste (Sensodyne Pronamel Daily Protection, GSK, UK), and distilled water (toothpaste/water ratio: 1:2, per EN ISO 14569-2007). Surface roughness, microhardness, and SEM analyses were performed before and after brushing. Data were statistically analyzed using SPSS v29. Results: Surface roughness and microhardness were significantly influenced by both the toothpaste type and composite material. The R.O.C.S. group exhibited the highest increase in surface roughness (p<0.001) and a significant reduction in microhardness (p=0.041). GC Gaenial Universal Injectable Flow demonstrated the smoothest surface, while Kuraray Clearfil Majesty Flow exhibited the highest microhardness. Conclusion: The findings indicate that the surface properties of flowable composites are significantly affected by toothpaste RDA values. High-RDA toothpaste led to increased surface roughness and a marked reduction in microhardness.

Keywords

• Flowable composite resin
• Microhardness
• Surface Roughness
• Tooth brushing
• Whitening toothpaste

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