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AMAÇ: Restorasyonlarda kullanılan dental materyallerin radyoopasiteleri, radyografik tanıların konulmasında oldukça önemlidir. Bu sebeple çalışmamızda farklı akıcı kompozit rezinlerin dijital bir görüntü analizi kullanılarak radyoopasitelerinin değerlendirilmesi amaçlanmıştır. YÖNTEM: 5 farklı akıcı kompozit rezin [ (Aeliteflo, BISCO), (Brillant Ever Glow, Coltène), (Dynamic Flow, President Dental), (G-ænial Universal Flo, GC Corp.), (Novo compo-HF, Imicryl)] her grup için üç adet disk şeklinde 1 mm kalınlığında 8 mm çapında örnek teflon kalıplar kullanılarak hazırlanmıştır. Kontrol grubu için yeni çekilmiş dişten mine ve dentini içerecek şekilde 1 mm kalınlığında kesit alınmıştır. Örnekler alüminyum step-kama ile birlikte okluzal film üzerine yerleştirilmiş ve 60 kV, 7mA ve 0.13sn değerlerinde dijital radyograf alınmıştır. VistaScan cihazıyla dijital ortama aktarıldıktan sonra alüminyum step-kamanın ve akıcı kompozit rezinlerin radyoopasiteleri Adobe Photoshop CS5 programıyla 10x10 piksellik farklı alanlardan hesaplamalarla ortalama grilik değerlerine (MGVs) çevrilmiştir. Akıcı kompozit rezinler için eşdeğer alüminyum kalınlığı CurveExpert Professional programı ile hesaplanmıştır. BULGULAR: Kullanılan akıcı kompozit rezinlerin Al eşdeğer radyoopasitelerinin sıralaması Novo compo-HF (2,81mm Al) > Brillant ever glow (2,15mm Al) > Aeliteflo (1,64mm Al) > Dynamic flow (1,61mm Al) > G-ænial Universal Flo (1,19 mm Al) (p<0,05) şeklindedir. G-ænial Universal Flo ve dentin 1mm Alüminyum radyoopasite değerine istatistiksel olarak en yakın sonucu vermiştir. Novo compo-HF mineden daha radyoopak olmakla beraber yakın MGV’ ye sahiptir. SONUÇ: Akıcı kompozit rezinlerin radyoopasiteleri önemli ölçüde çeşitlilik göstermektedir. Akıcı kompozit rezinlerin, uygulanan kompozit rezin restorasyonların altında sekonder çürükle karıştırılmaması ve farklı materyal kullanıldığının belirlenebilmesi için farklı radyoopasite değerlerinde seçimler yapılabilir. Ayrıca radyografik analiz yapılırken bu farklı radyoopasite değerlerinin bilinmesi diagnostik değerlendirmede ve teşhiste yardımcı olacaktır. Anahtar Kelimeler: Akıcı kompozit rezin, radyoopasite, ortalama grilik değeri COMPARATIVE RADIOPACITIES OF FIVE FLOWABLE RESIN COMPOSITES AIM: The radiopacities of the dental materials in the restoration are very important in getting radiographic diagnosis. For this reason, we aimed to evaluate the radiopacity of different flowable composites using a digital image analysis. METHODS: For the 5 different flowable resin composites [(Aeliteflo, BISCO), (Brillant Ever Glow, Coltène), ( Dynamic Flow, President Dental), ( G-ænial Universal Flo, GC Corp.), ( Novo compo-HF, Imicryl)] 3 discs with a thickness of 1 mm and a diameter of 8 mm were prepared with using teflon mold. For the control group, a slice of 1 mm thickness was taken to contain enamel and dentin from the freshly extracted tooth. The samples were placed on an occlusal film with the aluminum step wedge and the film was exposed with a dental x-ray unit at 60 kV, 7 mA, and 0.13 second. After transferring to the digital image using VistaScan the radiopacities of aluminum step-wedges and the flowable resin composites were converted to mean gray values (MGVs) from different areas which is 10x10 pixel by Adobe Photoshop CS5 program. Equivalent aluminum thickness for each flowable resin composite is calculated with the CurveExpert Professional Program. RESULTS: The order of the Al equivalent radiopacities of the flowable resin composites used is as follows Novo compo-HF (2,81mm Al) > Brillant ever glow (2,15mm Al) > Aeliteflo (1,64mm Al) > Dynamic flow (1,61mm Al) > G-ænial Universal Flo (1,19 mm Al) (p<0,05). G-ænial Universal Flo and dentin got the closest result to 1mm Aluminum radiopacity value statistically. The Novo compo-HF is more radiopaque than the enamel and has close MGV. CONCLUSION: The radiopacity of flowable resin composites varies considerably, Selections can be made at different radiopacity values so that they do not be confused with secondary caries under the applied composite restorations and indicate that different materials are used. In addition, knowing these different radiopaque values while performing radiographic analysis will help diagnose. Keywords: Flowable resin composites, radiopacity, mean gray value
The radiopaths of dental materials used in restorations are very important in placing radiographic diagnoses. This is why our study aims to evaluate the radioopasites using a digital image analysis of different fluid composite resins. Method: 5 different fluid composite resin [ (Aeliteflo, BISCO), (Brillant Ever Glow, Coltène), (Dynamic Flow, President Dental), (G-ænial Universal Flo, GC Corp.), (Novo compo-HF, Imicryl)] for each group is prepared using sample teflon patterns with a diameter of 8 mm of 1 mm thickness in three disc forms. The newly drawn tooth is cut in a thickness of 1 mm to contain mine and dentine. Examples are placed on the okluzal film along with aluminum step-cam and 60 kV, 7mA and 0. A digital radiograph is taken at 13sn values. After transferred to the digital environment with the VistaScan device, the radiopaths of aluminum step-kaman and smooth composite resins have been converted to average gray values (MGVs) with calculations of 10x10 pixels from different fields with Adobe Photoshop CS5. The equivalent aluminum thickness for smooth composite resins is calculated with the CurveExpert Professional program. The classification of the Al-equivalent radioopasites of the used fluid composite resins is in the form of Novo compo-HF (2,81mm Al) > Brillant ever glow (2,15mm Al) > Aeliteflo (1,64mm Al) > Dynamic flow (1,61mm Al) > G-ænial Universal Flo (1,19mm Al) (p<0,05) The G-ænial Universal Flo and Dentin 1mm Aluminium radiopathy values have been statistically approximate. Novo compo-HF is more radioopic than the mines, with a near MGV. The result is that the radioopathy of the fluid composite resins is significantly diverse. Differential radiopathy values can be made in order to ensure that fluid composite resins are not mixed with secondary dirt under the applied composite resin restorations and that different materials are used. The knowledge of these different radiopathic values during radiographic analysis will also help in diagnostic assessment and diagnosis. The radiopacities of the dental materials in the restoration are very important in getting radiographic diagnosis. For this reason, we aimed to evaluate the radiopacity of different flowable composites using a digital image analysis. METHODS: For the 5 different flowable resin composites [(Aeliteflo, BISCO), (Brillant Ever Glow, Coltène), (Dynamic Flow, President Dental), (G-ænial Universal Flo, GC Corp.), (Novo compo-HF, Imicryl)]; 3 discs with a thickness of 1 mm and a diameter of 8 mm were prepared with using teflon mold. For the control group, a slice of 1 mm thickness was taken to contain enamel and dentin from the freshly extracted tooth. The samples were placed on an occlusal film with the aluminum step wedge and the film was exposed with a dental x-ray unit at 60 kV, 7 mA, and 0.13 second. After transferring to the digital image using VistaScan; the radiopacities of aluminum step-wedges and the flowable resin composites were converted to mean gray values (MGVs) from different areas which is 10x10 pixels by Adobe Photoshop CS5 program. Equivalent aluminum thickness for each flowable resin composite is calculated with the CurveExpert Professional Program. RESULTS: The order of the Al equivalent radiopacities of the flowable resin composites used is as follows; Novo compo-HF (2,81mm Al) > Brillant ever glow (2,15mm Al) > Aeliteflo (1,64mm Al) > Dynamic flow (1,61mm Al) > G-ænial Universal Flo (1,19mm Al) (p<0,05). G-ænial Universal Flo and dentin got the closest result to 1mm Aluminum radiopacity value statistically. The Novo compo-HF is more radiopaque than the enamel and has close MGV. The radiopacity of flowable resin composites varies considerably, Selections can be made at different radiopacity values so that they do not be confused with secondary caries under the applied composite restorations and indicate that different materials are used. In addition, knowing these different radiopaque values while performing radiographic analysis will help diagnose. Keywords: Flowable resin composites, radiopacity, mean gray value
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