Spherulitic growth of apatite in a glass—ceramic system

1986 ◽  
Vol 5 (12) ◽  
pp. 1309-1312 ◽  
Author(s):  
P. R. Carpenter ◽  
M. Campbell ◽  
R. D. Rawlings ◽  
P. S. Rogers
Keyword(s):  
Glass Ceramic ◽  
Ceramic System ◽  
Spherulitic Growth

Impact of Silane-containing Universal Adhesive on the Biaxial Flexural Strength of a Resin Cement/Glass-ceramic System

2019 ◽  
Vol 44 (2) ◽  
pp. 200-209 ◽  
Author(s):  
F Murillo-Gómez ◽  
RB Wanderley ◽  
MF De Goes
Keyword(s):  
Flexural Strength ◽  
Glass Ceramic ◽  
Resin Cement ◽  
Weibull Analysis ◽  
Ceramic System ◽  
Universal Adhesive ◽  
Bonded Interface ◽  
Biaxial Flexural Strength ◽  
Digital Caliper ◽  
One Way Anova

SUMMARY The aim of this study was to determine whether using a silane-containing universal adhesive as a silane primer in glass-ceramic/resin cement systems affects biaxial flexural strength (BFS) and bonded interface integrity after loading. Glass-ceramic (IPS e.max CAD, Ivoclar/Vivadent, Schaan, Liechtenstein) disc-shaped specimens (6.5±0.1mm in diameter, 0.5±0.1mm thick) were etched with 5% hydrofluoric acid (HF) for 20 seconds and divided into four groups of 30 specimens, to be treated as follows: 1) One bottle silane primer (RCP); 2) Separate application of silane and adhesive (RCP+SB); 3) Silane-containing universal adhesive (SBU); 4) No treatment (C). After silanization, all specimens were resin cement– coated and polymerized for 40 seconds. Each specimen layer was measured, as well as each assembly's thickness, using a digital caliper and scanning electron microscope (SEM). Specimens were stored for 24 hours and submitted to a BFS test (1.27 mm/min). BFS values were calculated using the bilayer disc-specimen solution. Bonded interfaces were analyzed on fractured fragments using SEM. One-way ANOVA and Tukey tests (α=0.05) were applied, as well as the Weibull analysis. Factor “silane treatment” was statistically significant (p<0.0001). RCP+SB (372.2±29.4 MPa) and RCP (364.2±29.5 MPa) produced significantly higher BFS than did the C (320.7±36.3 MPa) or SBU (338.0±27.1 MPa) groups. No differences were found in the Weibull modulus (m: RCP: 10.1-17.3; RCP+SB: 10.1-17.0; SBU: 12.3-22.4; C: 7.4-12.9). Bonded interface analysis exhibited ceramic-cement separation (SBU, C) and voids within the resin cement layer (all groups). Neither the ceramic/cement system's BFS nor its bonded interface stability were improved by SBU after loading.

A TEM Study of Crystal Growth in a Y-Si-AI-O-N Glass Ceramic System

2000 ◽  
Vol 325-326 ◽  
pp. 289-294 ◽  
Author(s):  
W.T. Young ◽  
L.K.L. Falk ◽  
H. Lemercier ◽  
Stuart Hampshire
Keyword(s):  
Crystal Growth ◽  
Glass Ceramic ◽  
Ceramic System

scholarly journals Properties of Li2O-ZnO-Al2O3-SiO2 glass-ceramic system prepared by spray pyrolysis

2009 ◽  
Vol 117 (1365) ◽  
pp. 717
Author(s):  
Jin Man HAN ◽  
Dae Soo JUNG ◽  
Jang Heui YI ◽  
Yun Chan KANG
Keyword(s):  
Spray Pyrolysis ◽  
Glass Ceramic ◽  
Ceramic System ◽  
Sio2 Glass

scholarly journals Preliminaryin vitro andin vivo characterizations of a sol-gel derived bioactive glass-ceramic system

2002 ◽  
Vol 25 (5) ◽  
pp. 419-429 ◽  
Author(s):  
S. Abiraman ◽  
H. K. Varma ◽  
T. V. Kumari ◽  
P. R. Umashankar ◽  
Annie John
Keyword(s):  
Bioactive Glass ◽  
Glass Ceramic ◽  
Sol Gel ◽  
Ceramic System
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