Performance characteristics of collapsible CaO-SiO2 based ceramic core material via layered extrusion forming

2019 ◽  
Vol 45 (6) ◽  
pp. 7681-7689 ◽  
Author(s):  
Li Yang ◽  
Shiyan Tang ◽  
Guanjin Li ◽  
Fuchu Liu ◽  
Xinwang Liu ◽  
...  
Keyword(s):  
Performance Characteristics ◽  
Core Material ◽  
Ceramic Core ◽  
Extrusion Forming

Effect of Post-Core Materials on the Color Value of Four Dental All-Ceramic Cores

2013 ◽  
Vol 544 ◽  
pp. 396-400
Author(s):  
Rong Jian Lu ◽  
Cheng Long Wang ◽  
Jing Cai Zou ◽  
Yuan Fu Yi ◽  
Long Quan Shao ◽  
...  
Keyword(s):  
Noble Metal ◽  
Core Material ◽  
Ceramic Core ◽  
All Ceramic ◽  
Color Value ◽  
Core Materials

The aim of this study were to compare the color value of four kinds of dental all-ceramic cores (IPS e.max Press,Zenostar,Lava Zirconia and Upcera Zirconia) on three different post-core materials.All-ceramic core materials were made into samples at the diameter of 10mm and the thickness of 0.50.02mm.Their color value on the post-core material of noble metal,Co-Cr alloy and resin were respectively determined with chromatism instrument.It was showed that the color value of four all-ceramic cores were statistically different.IPS e.max Press was most obviously affected by post-core materials,while Upcera Zirconia the weakest.Lava Zirconia and Zenostar were influenced to a certain degree.In conclusion,non-mental post-core was preferable for IPS e.max Press,Upcera Zirconia was fit for any post-core materials.

Test of Relative Translucency of 5 All-Ceramic Core Materials

2013 ◽  
Vol 591 ◽  
pp. 289-292
Author(s):  
Jian Feng Chen ◽  
Rui Jie Dang ◽  
Li Sheng Zhao ◽  
Bin Deng ◽  
Bin Gu ◽  
...  
Keyword(s):  
Color Difference ◽  
Core Material ◽  
White Background ◽  
Ceramic Core ◽  
Black And White ◽  
Significant Difference ◽  
All Ceramic ◽  
Core Materials

Objective:To study the relative translucency of 5 veneered and glazed all-ceramic systems core material, including Procerra AllCeram Alumina, Vita In-Ceram Zirconium, Ivoclar Vivodent Empress, In-Ceram Spinell and Colored Zirconia. Methods: Under standard black and white background, the surface light reflectivity of 5 veneered all-ceramic systems core material was determined with contact color difference meter, and the ratio of Yb /Yw was calculated. Results: After veneered, the relative translucency of 5 core materials all declined, and ranged from 0.6740 of In-Ceram Spinell to 1.00 of In-Ceram zirconia, among of that In-Ceram Spinell was most transparent. Conclusion: Among the groups, there is no significant differences among Empress II, Procera AllCeram and Colored Zirconia (IL1,IL2,IL3). Compared with Procera AllCeram and Vita In-Ceram Zirconium , Procera AllCeram has significant difference. There is a significant difference between Procera AllCeram and In-Ceram Spinell.

Test of Relative Translucency for Four All-Ceramic Core Material after Veneering Ceramic

2013 ◽  
Vol 544 ◽  
pp. 388-391
Author(s):  
Jian Feng Chen ◽  
Li Sheng Zhao ◽  
Yan Zhao ◽  
Bin Deng ◽  
Bin Gu ◽  
...  
Keyword(s):  
Color Difference ◽  
Core Material ◽  
Ceramic Core ◽  
Significant Difference ◽  
All Ceramic ◽  
Core Materials

Objective: To study the relative translucency of 4 veneered and glazed all-ceramic systems core material, including Vita In-Ceram Alumina, Vita In-Ceram Zirconium, Ivoclar Vivodent Empress and Colored Zirconia. Methods: Under standard black and write background, the surface light reflectivity of 4 veneered all-ceramic systems core material was determined with contact color difference meter, and the ratio of Yb /Yw was calculated. Results: After veneered, the relative translucency of 4 core materials all declined, and ranged from 0.8015 of Colored Zirconia to 1.00 of In-Ceram zirconia, among of that Empress II and Colored Zirconia were most transparent. Conclusion: Among the groups, there is no significant difference between Empress II and Colored Zirconia(IL1,IL2,IL3). Compared with Vita In-Ceram Alumina and Vita In-Ceram Zirconium, Vita In-Ceram Alumina(AL1) has significant difference. There is no significant difference between Vita In-Ceram Zirconium and Vita In-Ceram Alumina(AL2,AL3,AL4).

Effect of specimen thickness on the creep deformation of a silica-based ceramic core material

2018 ◽  
Vol 763 ◽  
pp. 781-790 ◽  
Author(s):  
Kaiwen Li ◽  
Weiguo Jiang ◽  
Shaogang Wang ◽  
Jiuhan Xiao ◽  
Langhong Lou
Keyword(s):  
Creep Deformation ◽  
Core Material ◽  
Specimen Thickness ◽  
Ceramic Core

Effect of Background Color on In-Ceram and Cercon All-Ceramic Core Material

2011 ◽  
Vol 412 ◽  
pp. 356-360
Author(s):  
Yi Han Liu ◽  
Hong Chen Liu ◽  
Bin Deng ◽  
Long Quan Shao ◽  
Yuan Fu Yi ◽  
...  
Keyword(s):  
Color Difference ◽  
Core Material ◽  
Chromium Alloy ◽  
Background Color ◽  
Ceramic Core ◽  
Nickel Chromium ◽  
All Ceramic ◽  
Color Differences ◽  
Human Eyes ◽  
Core Materials

The present paper probes into the effect of background color of different post-core materials on the core materials of In-Ceram AL2 Electroformed Alumina, Z21 Electroformed Zirconia, Cercon base color Zirconia, and Cercon base Zirconia. The spectrocolorimeter was used to measure colorimetric values of all groups of samples against the background of noble metal, nickel-chromium alloy, silver amalgam and resin, and to calculate the color difference among the groups. The result showed that the color difference of Cercon base color Zirconia viewed against different backgrounds was identifiable by human eyes (ΔE > 1.5). In contrast, the color differences of In-Ceram AL2 Electroformed Alumina, Z21 Electroformed Zirconia and Cercon base Zirconia viewed against different backgrounds were unidentifiable by human eyes (ΔE < 1.5). Based on this, it can be stated that Cercon base color Zirconia is significantly affected by background color. Thus, proper method to shelter the background color should be adopted. In addition, AL2 Electroformed Alumina, Z21 Electroformed Zirconia, and Cercon base color Zirconia are less influenced by the background color, thus it is not necessary to cover the background color.

Shear Bond Strength of Four Resin Cements Used to Lute Ceramic Core Material to Human Dentin

2008 ◽  
Vol 17 (8) ◽  
pp. 634-640 ◽  
Author(s):  
Subutayhan Altintas ◽  
Ayçe Unverdi Eldeniz ◽  
Aslihan Usumez
Keyword(s):  
Bond Strength ◽  
Shear Bond Strength ◽  
Core Material ◽  
Ceramic Core ◽  
Resin Cements ◽  
Human Dentin

scholarly journals Effect of silica fiber on the mechanical and chemical behavior of alumina-based ceramic core material

2017 ◽  
Vol 5 (4) ◽  
pp. 410-417 ◽  
Author(s):  
Weiguo Jiang ◽  
Kaiwen Li ◽  
Jiuhan Xiao ◽  
Langhong Lou
Keyword(s):  
Silica Fiber ◽  
Core Material ◽  
Chemical Behavior ◽  
Ceramic Core

Comparing Study on Transmittance of Four Dental All-Ceramic Core Material

2012 ◽  
Vol 624 ◽  
pp. 231-234
Author(s):  
Bin Deng ◽  
Juan Xu ◽  
Li Min Liang ◽  
Yuan Fu Yi ◽  
Long Quan Shao ◽  
...  
Keyword(s):  
Experimental Results ◽  
Core Material ◽  
Ceramic Core ◽  
Clinical Recommendation ◽  
All Ceramic ◽  
Core Materials

The purpose of this study was to compare the transmittance of four dental all-ceramic core materials at clinical recommendation thickness.Specimens with 10mm in diameter and 0.50.01mm in thickness,including IPS e.max Press,Zenostar Zirconia,Lava Zirconia and Upcera Zirconia,were fabricated.The transmittance of specimens were measured with PR2650 spectrophotometer and measurements were analysed statistically with SPSS13.0.Experimental results showed that they had significantly different transmittance.There was a decreasing order,IPS e.max Press Lava Zirconia Zenostar Zirconia Upcera Zirconia,which were 6.1136.750 for IPS e.max,1.6042.135 for Lava Zirconia,1.5782.117 for Zenostar Zirconia and 0.9951.265 for Upcera Zirconia.

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