The controlled precipitation of strontium fluoroapatite crystals was studied in four base glass compositions derived from the SiO2-Al2O3-Y2O3-SrO-Na2O-K2O/Rb2O/Cs2O-P2O5-F system. The crystal phase formation of these glasses and the main properties of the glass-ceramics, such as thermal and optical properties and radiopacity were compared with a fifth, a reference glass-ceramic. The reference g...

Amaç: Yeni nesil metal desteksiz dental seramiklerin uzun süreli biyouyumluluğu ile ilgili olarak oldukça az bilgi mevcuttur. Bu çalışmanın amacı, farklı dental seramiklerin gingival fibroblast canlılığına olan etkisini değerlendirmektir. Gereç ve Yöntem: İnsan gingival fibroblastı, 2 farklı feldspathic seramiğe (Vita Omega ve Ivoclar), bir lithium disilicate preslenebilir seramiğe (Empress-2) ...

Dental materials need to be thoroughly examined in order to assess their long-term therapeutical value. Chemical degradation of dental ceramic material enhances its roughness, leading to the wear of the opposing natural tooth or restorative material, greater plaque attachment to ceramics, weakening of the ceramic structure causing the critical ion exchange at the surface and enhancing the sensi...

Fluorine is the world’s 13thmost abundant element and constitutes 0.08% of the Earth crust. It has the highest electronegativity of all elements. Fluoride is widely distributed in the environment, occurring in the air, soils, rocks, and water. Although fluoride is used industrially in a fluorine compound, themanufacture of ceramics, pesticides, aerosol propellants, refrigerants, glassware, and ...

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Color preservation of esthetic dental restorative materials in the oral environment represents, besides longevity, a concern, and there is still limited knowledge related to effect aging on optical behavior resin matrix ceramics. The study analyzed finishing thermocycling ceramic material surfaces, order assess their consequences properties. Five CAD/CAM ceramics, namely polymer-infiltrated fou...