Farklı kompozit rezin materyallerinin aşınma ve sertlik özelliklerinin karşılaştırmalı olarak incelenmesi
Küçük Resim Yok
Tarih
2002
Yazarlar
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Dergi ISSN
Cilt Başlığı
Yayıncı
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
Çalışmamızın amacı, kliniğimizde kullandığımız 10 adet kompozit rezinin aşınma ve sertlik değerlerinin karşılaştırmalı olarak incelenmesidir. Test örneklerinin hazırlanmasında, 4mm çap ve 6mm yükseklikte şeffaf pleksiglass kalıp kullanıldı. Üretici firmaların önerilerine göre polimerizasyon sağlanarak 80 adet silindirik örnek elde edildi. 37$\circ$C etüvde 7 gün bekletildikten sonra deneyler gerçekleştirildi. Örneklerin ağırlıkları kaydedildikten sonra, 30'ar saniye süreyle 4 kez aşındırma cihazında işleme tabii tutuldu. Aşındırıcı material olarak en ince zımpara (1200) ile sulu ortamda gerçekleştirildi. Her aşınma işleminden sonra örnekler kurutulup ağırlıkları tekrar kaydedildi. Başlangıç ve son ağırlık arasındaki fark toplam aşınma miktarı olarak alındı. İkinci aşamada aynı örneklerde sertlik ölçümleri yapıldı. Vikers sertlik ölçümü 100 g kuvvetin 15 sn uygulanması ile stereomikroskop altında gerçekleştirildi. İstatistiksel değerlendirme varyans analizi (ANOVA) ve Bonferroni/Dunn testi ile gerçekleştirildi. Kompozitlerin ortalama ağırlık kayıpları sırasıyla şöyledir: Tetric Ceram 18.50 mg, Ecusit 12.55 mg, Admira Cap 11.05 mg, Arabesk Top 10.34 mg, TPH Spectrum 9.42 mg, Pekalite 7.29mg, Z100 6.36 mg, Clearfil AP-X 6.10 mg, Surefil 4.62 mg ve Clearfil Ray-Posterior 3.40 mg. Kaydedilen Vickers sertlik değerleri ise sırasıyla şöyledir: Clearfil Ray-Posterior 175, Z100 174, Clearfil AP-X 159, Surefil 156, Pekalite 140, TPH Spectrum 128, Ecusit 127, Admira Cap 112, Arabesk Top 99, Tetric Ceram 82. Çalışmamızın sonuçlarına göre, aşınma ve sertlik arasında korelasyon bulunmamıştır.
The aim of this study was to investigate the wear rate and microhardness of 10 different composite resin materials. Eighty specimens were prepared using a plexiglass mould of 4 mm diameter and 6 mm height and polimerized according to manufacturer's advice. the specimens were stored in 37$\circ$C distilled water for one week. Composite cylinders weights were recorded and specimens were subjected to wear procedures for 30s for 4 times. the grinding was made with a 1200 grit with water. After each procedure, the specimens were dried and weighted. the difference between the first and the last weight was recorded as the total wear value. At the end of the wear procedure, the specimens were prepared for Vickers microhardness test. the test was made with a 100 g force applied for 15 s on the surface of the composite resins and values were measured with a stereomicroscope. Statistical analysis was performed using an analysis of variance (ANOVA) with a Bonferroni/Dunn test. the weight loss of composite resins were: Tetric Ceram 18.50 mg, Ecusit 12.55 mg, Admira Cap 11.05 mg, Arabesk Top 10.34 mg, TPH Spectrum 9.42 mg, Pekalite 7.29 mg, Z100 6.36 mg, Clearfil AP-X 6.10 mg, Surefil 4.62 mg and Clearfil Ray-Posterior 3.40 mg. the Vickers hardness values of the composite resins were: Clearfil Ray-Posterior 175, Z100 174, Clearfil AP-X 159, Surefil 156, Pekalite 140, TPH Spectrum 128, Ecusit 127, Admira Cap 112, Arabesk Top 99, Tetric Ceram 82 As a conclusion, no correlation was found between wear and microhardness values.
The aim of this study was to investigate the wear rate and microhardness of 10 different composite resin materials. Eighty specimens were prepared using a plexiglass mould of 4 mm diameter and 6 mm height and polimerized according to manufacturer's advice. the specimens were stored in 37$\circ$C distilled water for one week. Composite cylinders weights were recorded and specimens were subjected to wear procedures for 30s for 4 times. the grinding was made with a 1200 grit with water. After each procedure, the specimens were dried and weighted. the difference between the first and the last weight was recorded as the total wear value. At the end of the wear procedure, the specimens were prepared for Vickers microhardness test. the test was made with a 100 g force applied for 15 s on the surface of the composite resins and values were measured with a stereomicroscope. Statistical analysis was performed using an analysis of variance (ANOVA) with a Bonferroni/Dunn test. the weight loss of composite resins were: Tetric Ceram 18.50 mg, Ecusit 12.55 mg, Admira Cap 11.05 mg, Arabesk Top 10.34 mg, TPH Spectrum 9.42 mg, Pekalite 7.29 mg, Z100 6.36 mg, Clearfil AP-X 6.10 mg, Surefil 4.62 mg and Clearfil Ray-Posterior 3.40 mg. the Vickers hardness values of the composite resins were: Clearfil Ray-Posterior 175, Z100 174, Clearfil AP-X 159, Surefil 156, Pekalite 140, TPH Spectrum 128, Ecusit 127, Admira Cap 112, Arabesk Top 99, Tetric Ceram 82 As a conclusion, no correlation was found between wear and microhardness values.
Açıklama
Anahtar Kelimeler
Diş Hekimliği
Kaynak
Ankara Üniversitesi Diş Hekimliği Fakültesi Dergisi
WoS Q Değeri
Scopus Q Değeri
Cilt
29
Sayı
3
