TY  - JOUR
T1  - TARİHİ GEÇMİŞ KOMPOZİT REZİNLERİ KULLANMAK MÜMKÜN MÜ? : FTIR ANALİZİ
TT  - IS IT POSSIBLE TO USE EXPIRED RESIN COMPOSITES: FTIR ANALYSIS
AU  - Doğu, Bengü
AU  - Özmen, Seda
AU  - Şenol, Ayşe Aslı
AU  - Korkut, Bora
AU  - Tarçın, Bilge
AU  - Yılmaz Atalı, Pınar
PY  - 2023
DA  - February
JF  - Istanbul Kent University Journal of Health Sciences
JO  - IKUJHS
PB  - Istanbul Kent University
WT  - DergiPark
SN  - 2822-6615
SP  - 5
EP  - 11
VL  - 2
IS  - 1
LA  - tr
AB  - Amaç: Bu çalışmanın amacı; son kullanma tarihleri 1 yıl, 2 yıl ve 3 yıl geçmiş rezin kompozitlerin (RK) dönüşüm derecelerini karşılaştırarak kullanımlarındaki güven aralığını değerlendirmektir. Materyal ve Metod: Üç farklı RK'den (Herculite XRV-Ultra A2-dentin, son kullanma tarihi 3 yıl ve 1 yıl geçmiş; Herculite Classic A2, son kullanma tarihi 2 yıl geçmiş; Kerr) 9 adet disk (8 x2 mm) hazırlandı (n=3). RK silikon kalıplara yerleştirildi, her iki tarafı şeffaf bantlar ile kapatıldı ve LED ışıklı cihaz ile (Valo, Ultradent) ile 20 sn parmak basıncı altında polimerizasyonu takiben numuneler 37°C'de 24 saat distile suda bekletildi. Dönüşüm derecesini (%DC) belirlemek için Fourier Dönüşümü Kızılötesi Spektrometre (FT-IR, JASCO) ile örnekleme kullanılarak polimerize olmuş ve olmamış kompozitler üzerinde spektral analizler yapıldı. Ortaya çıkan FT-IR spektrumu, 20 °C ortam sıcaklığında 4000–400 cm-1 spektral aralığında kaydedildi; kullanılan çözünürlük dört tarama ile 4 cm-1’dir. Veriler SPSS (SPSS Inc.) ile tek yönlü varyans analizi (ANOVA) ve Tukey testleri kullanılarak analiz edildi. Anlamlılık düzeyi p
KW  - DÖNÜŞÜM DERECESİ
KW  - FT-IR
KW  - LED
KW  - KOMPOZİT REZİN
KW  - SON KULLANMA TARİHİ
N2  - Aim: The aim of this study is to evaluate the confidence interval in the use of resin composites (RC) with expiration dates of 1-year, 2-years and 3-years by comparing the conversion degrees. Material and Methods: 9 discs (8x2 mm)  were prepared from three RC (n=3), (Herculite XRV-Ultra A2-dentine; 3-years expired, 1-year expired. Herculite Classic A2, 2-years expired, Kerr). RC were placed in silicone molds, covered with mylar strips on both sides and polymerized with a LED light-curing unit (Valo, Ultradent) under finger pressure for 20s. The polymerized samples were kept in distilled water for 24 hours at 37C. Spectral analyses were performed on uncured and cured composites using sampling with Fourier Transform Infrared (FT-IR, JASCO) to determine the degree of conversion rates (DC%). The resulting FT-IR spectrum was recorded in the spectral range of 4000–400 cm-1 at ambient temperature of 20 °C; the resolution used was 4 cm-1 with four scans. Data were analyzed with SPSS (SPSS Inc.) using one-way Analysis of variance (ANOVA) and Tukey tests. Significance level was set at p
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UR  - https://dergipark.org.tr/en/pub/ikujhs/issue//1226187
L1  - https://dergipark.org.tr/en/download/article-file/2860467
ER  -