Publication: Tarihi geçmiş kompozit rezinleri kullanmak mümkün mü? : Ftır analizi
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Date
2023-02-01
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Abstract
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<0,05 olarak alındı. Bulgular: En yüksek
ortalama %DC, 1 yıllık son kullanma tarihi
geçmiş RK grubu için kaydedilirken (H-6: 68,80
± 4,544), bunu 2 yıllık son kullanma tarihi geçmiş
RK grubu (H- 12: 68,268 ± 2,695) takip etmiştir.
En düşük ortalama %DC 3 yıl üstü RK grubu için
kaydedilmiştir (H-24: 68.032 ± 4.641). Üç grup
arasında %DC değerleri açısından istatistiksel
olarak anlamlı bir fark bulunmadı (P=0,096).
Sonuç: Bu çalışmanın sınırları dahilinde; son
kullanma tarihleri üzerinden 1, 2 ve 3 yıl geçmiş
kompozitler benzer %DC sonuçları gösterdi.
Klinisyenlerin, üreticiler tarafından önerilen son
kullanım tarihi talimatlarını takip etmeleri
gerekmektedir.
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 XRVUltra 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 37C. 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<0.05. Results: The highest mean DC% was recorded for the RC group with 1-year expiration date (H-6: 68,80 ± 4,544), followed by the 2-years expired RC group (H- 12: 68,268 ± 2,695). The lowest mean DC% was recorded for the RC group with 3-years of expiration date (H-24: 68,032 ± 4,641). There was no statistically significant difference between the three groups in terms of DC% values (p=0.096). Conclusion: Within the limitations of this study, composites with expiration dates of 1-, 2-, and 3- years showed similar DC% results. Clinicians are required to follow the expiration date guidelines recommended by the manufacturers.
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 XRVUltra 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 37C. 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<0.05. Results: The highest mean DC% was recorded for the RC group with 1-year expiration date (H-6: 68,80 ± 4,544), followed by the 2-years expired RC group (H- 12: 68,268 ± 2,695). The lowest mean DC% was recorded for the RC group with 3-years of expiration date (H-24: 68,032 ± 4,641). There was no statistically significant difference between the three groups in terms of DC% values (p=0.096). Conclusion: Within the limitations of this study, composites with expiration dates of 1-, 2-, and 3- years showed similar DC% results. Clinicians are required to follow the expiration date guidelines recommended by the manufacturers.
Description
Keywords
Diş Hekimliği, Klinik Bilimler, Sağlık Bilimleri, Dentistry, Clinical Sciences, Health Sciences, Klinik Tıp (MED), Klinik Tıp, DİŞ HEKİMLİĞİ, ORAL CERRAHİ VE TIP, Clinical Medicine (MED), CLINICAL MEDICINE, DENTISTRY, ORAL SURGERY & MEDICINE, Periodontoloji, Ortodonti, Ağız Cerrahisi, Diş Hijyeni, Dişçilik Hizmetleri, Diş Hekimliği (çeşitli), Periodontics, Orthodontics, Oral Surgery, Dental Hygiene, Dental Assisting, Dentistry (miscellaneous), General Dentistry, Dönüşüm Derecesi, FT-IR, LED, Kompozit Rezin, Son Kullanma Tarihi, Composite resin, conversion degree, expiration date
Citation
Özmen S., Doğu Kaya B., Şenol A. A., Korkut B., Tarçın B., Yılmaz Atalı P., "TARİHİ GEÇMİŞ KOMPOZİT REZİNLERİ KULLANMAK MÜMKÜN MÜ? : FTIR ANALİZİ", Istanbul Kent University Journal of Health Sciences, cilt.2, sa.1, ss.5-11, 2023