Preparation and characterization of some multicomponent silicate glasses and their glass–ceramics derivatives for dental applications

2009 ◽  
Vol 35 (3) ◽  
pp. 1211-1218 ◽  
Author(s):  
Fatma H. ElBatal ◽  
Moenis A. Azooz ◽  
Yousry M. Hamdy
Keyword(s):  
Glass Ceramics ◽  
Silicate Glasses ◽  
Dental Applications

Novel Glass-Ceramics for Dental Application by Sol Gel Technique

2008 ◽  
Vol 396-398 ◽  
pp. 153-156 ◽  
Author(s):  
Xanthippi Chatzistavrou ◽  
E. Hatzistavrou ◽  
Nikolaos Kantiranis ◽  
Lambrini Papadopoulou ◽  
Eleana Kontonasaki ◽  
...  
Keyword(s):  
Glass Ceramic ◽  
Preparation Method ◽  
Sol Gel ◽  
Glass Ceramics ◽  
Dental Restorations ◽  
Gel Technique ◽  
Gel Preparation ◽  
Dental Applications ◽  
Potential Use

The aim of this study was the fabrication using a sol-gel technique of a new glass-ceramic with potential use in dental applications. The characterization of the composition and microstructural properties of the produced material confirmed the similarity between the new sol-gel derived glass-ceramic and a commercial leucite based fluorapatite dental glass-ceramic. The produced material has potential application in dental restorations and it is expected to exhibit better control of composition, microstructure and properties due to the intrinsic advantages of the sol-gel preparation method.

Nucleation, Crystallization and Characterization of Mica-Based Glass-Ceramics with Fluorapatite

2014 ◽  
Vol 936 ◽  
pp. 164-169 ◽  
Author(s):  
Jia Bai ◽  
Duangrudee Chaysuwan
Keyword(s):  
Glass Ceramics ◽  
X Ray Diffraction ◽  
Soaking Time ◽  
X Ray ◽  
Optimal Heat Treatment ◽  
Treatment Conditions ◽  
Quenched Glass ◽  
Dental Applications ◽  
Soaking Temperature

The glass system of SiO2-Al2O3-MgO-MgF2-SrCO3-CaCO3-CaF2-P2O5 was used to prepare machinable glass-ceramics for restorative dental applications. The aim of this study was to apply various heat treatments to produce mica-based glass-ceramics. Differential Thermal Analysis (DTA) was used to determine the optimal heat treatment conditions for nucleation and growth of the crystalline phases in the quenched glass. It was found that the optimum nucleation temperatures for the first and the second crystallization temperatures (Tp1 and Tp2) were 642°C and 635°C, respectively, and the optimum nucleation times were between 2 and 4 hours. X-Ray Diffraction (XRD) showed the phases developed were anorthite, calcium-mica, fluorapatite, strontium apatite, forsterite, fluorite and stishovite phases. The microstructures of glass-ceramics were observed by Scanning electron microscope (SEM), found to exhibit plate-like mica crystals with high interlocking and randomly oriented with a higher soaking temperature and prolongation of the soaking time for crystallization.

Design and characterization of digluconate and diacetate chlorhexidine loaded-PLGA microparticles for dental applications

2021 ◽  
Vol 62 ◽  
pp. 102361
Author(s):  
F.F.O. Sousa ◽  
J.S. Nojosa ◽  
C.A.A. Alencar ◽  
A.P.M.P. Alcantara ◽  
R.S. Araújo ◽  
...  
Keyword(s):  
Plga Microparticles ◽  
Dental Applications

Bioactivity potential of calcium alumino-silicate glasses and glass–ceramics containing nitrogen and fluorine

2014 ◽  
Vol 49 (13) ◽  
pp. 4590-4594 ◽  
Author(s):  
A. R. Hanifi ◽  
C. M. Crowley ◽  
M. J. Pomeroy ◽  
Stuart Hampshire
Keyword(s):  
Glass Ceramics ◽  
Silicate Glasses ◽  
Alumino Silicate

ChemInform Abstract: Preparation and Characterization of Machinable Mica Glass-Ceramics by the Sol-Gel Process.

ChemInform ◽  
1989 ◽  
Vol 20 (9) ◽  
Author(s):  
T. HAMASAKI ◽  
K. EGUCHI ◽  
Y. KOYANAGI ◽  
A. MATSUMOTO ◽  
T. UTSUNOMIYA ◽  
...  
Keyword(s):  
Sol Gel ◽  
Glass Ceramics ◽  
Sol Gel Process

Characterization of Glass-Ceramics by TEM

2013 ◽  
Vol 562-565 ◽  
pp. 809-812 ◽  
Author(s):  
Xiao Qing Liu ◽  
Jun Lin Xie ◽  
Feng He ◽  
Hu Yang
Keyword(s):  
Electron Beam ◽  
Carbon Film ◽  
Glass Ceramics ◽  
Single Layer ◽  
Double Layers ◽  
Characterization Technique

The characterization technique of glass-ceramics by TEM was discussed by comparing the effects of single layer carbon film technique and double layers carbon film technique on the microstructure of Li-Al-Si glass-ceramics. The results show that double layers carbon film technique can improve glass-ceramics sample’s conductivity, reduce the induction of elctron beam on glass-ceramics, and avoid the temperature increasing of glass-ceramics particles caused by the charges aggregation on the particles’ surface when TEM electron beam hit down, prevent glass-ceramics from crystallization and the transformation of microstructurec. So, compared with single layer carbon film technique, double layers carbon film technique is more suitable for the research of microsture of glass-ceramics by TEM.

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