scholarly journals Review of Different Materials that can be CAD/CAM Processed Description, chemical composition, indications in dentistry areas

2019 ◽  
Vol 70 (11) ◽  
pp. 4029-4034
Keyword(s):  
Glass Ceramics ◽  
Chemical Properties ◽  
Restorative Dentistry ◽  
Materials Properties ◽  
Physical Chemical ◽  
Cad Cam ◽  
Technology Cad ◽  
Materials Used ◽  
Cam Systems ◽  
The Ideal

The objective of this paper is to inform on the indications, appearance and advantages offered by each category of materials used in CAD / CAM technique for different prosthetic restorations.Modern techniques in restorative dentistry include CAD/CAM systems and materials that can be CAD/CAM processed. It is very important to know the physical-chemical properties and the indications of these materials to translate the patient’s wishes to reality providing the ideal restoration. There are a variety of CAD/CAM materials to choose from, all designed to provide efficient restoration design and production. We can choose from available materiales including glass ceramics, nano ceramics, zirconia, hybrid ceramics, BioHPP, in blocks or disks form. Keywords: CAD/CAM technology, CAD/CAM materials, properties, indications

scholarly journals Review of Different Materials that can be CAD/CAM Processed Description, chemical composition, indications in dentistry areas

2019 ◽  
Vol 70 (11) ◽  
pp. 4029-4034
Author(s):  
Daniela Popa ◽  
Mariana Constantiniuc ◽  
Kamel Earar ◽  
Veronica Mercut ◽  
Monica Scrieciu ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Glass Ceramics ◽  
Chemical Properties ◽  
Restorative Dentistry ◽  
Physical Chemical ◽  
Cad Cam ◽  
Materials Used ◽  
Cam Systems ◽  
The Ideal ◽  
Design And Production

The objective of this paper is to inform on the indications, appearance and advantages offered by each category of materials used in CAD / CAM technique for different prosthetic restorations.Modern techniques in restorative dentistry include CAD/CAM systems and materials that can be CAD/CAM processed. It is very important to know the physical-chemical properties and the indications of these materials to translate the patient�s wishes to reality providing the ideal restoration. There are a variety of CAD/CAM materials to choose from, all designed to provide efficient restoration design and production. We can choose from available materiales including glass ceramics, nano ceramics, zirconia, hybrid ceramics, BioHPP, in blocks or disks form.

Preparation of Glass-Ceramics Using Molybdenum Tailings

2011 ◽  
Vol 284-286 ◽  
pp. 1431-1434 ◽  
Author(s):  
Jin Rui Zhang ◽  
Ru Wang
Keyword(s):  
Heat Treatment ◽  
Thermal Analysis ◽  
Differential Thermal Analysis ◽  
Crystalline Phase ◽  
Glass Ceramics ◽  
Chemical Properties ◽  
The Other ◽  
Raw Material ◽  
Physical Chemical ◽  
Nucleation Agents

In order to utilization the molybdenum tailings which be deposited in large quantities. Test used it to prepare glass-ceramics as main raw material, TiO2 as nucleation agents and CaO-Al2O3-SiO2 system and wollastonite as the principal crystalline phase. Heat treatment system of glass-ceramics was based on the differential thermal analysis. The crystalline phase, microstructure and characteristics of glass-ceramics were analysis by XRD, SEM and physical, chemical properties test. The result shows that the performance of glass-ceramics was superior to the other types of building decoration stone.

Comprehensive Review on pH and Nutrients Detection Sensitive Materials and Methods for Agriculture Applications

2019 ◽  
Vol 17 (9) ◽  
pp. 663-670 ◽  
Author(s):  
A. Akshaya Kumar ◽  
S. K. Naveen Kumar
Keyword(s):  
Chemical Properties ◽  
Strong Relationship ◽  
Review Article ◽  
Ion Selective Electrodes ◽  
Optical Parameters ◽  
Physical And Chemical Properties ◽  
Physical Chemical ◽  
Materials Used ◽  
Physical And Chemical ◽  
And Chemical Properties

This review article elaborates the pH and nutrients detection sensitive materials and methods along with their principle of operations, merits, demerits, and application area. The sensitive materials used in the sensors react with the analytes and shows variation in electrical, physical, chemical, biological and optical parameters. The glass probe method, optical light spectroscopy, ion-selective electrodes, ion-selective field effective transistors, electrochemical interdigitated conductimetric method and microcantilever methods are the predominant techniques to detect the pH and nutrients in various medium. Most of the researchers have discussed the fabrication of pH and nutrients sensors individually in various applications, but very few numbers of sensitive materials and techniques discussed to detect the pH and nutrients in the soil. There is a strong relationship between pH and nutrients in the soil based on a number of important physical and chemical properties of the soil. We are strongly recommending that soil pH and nutrients measuring sensors can develop through the combinational approach of pH and nutrients with the help of nanostructured materials, seems to be more effective for agriculture applications.

scholarly journals Bonding Strength of Resin Cement to Silicate Glass Ceramics for Dental CAD/CAM Systems is Enhanced by Combination Treatment of the Bonding Surface

2007 ◽  
Vol 26 (5) ◽  
pp. 713-721 ◽  
Author(s):  
Yusuke SHIMAKURA ◽  
Yasuhiro HOTTA ◽  
Akihiro FUJISHIMA ◽  
Jun KUNII ◽  
Takashi MIYAZAKI ◽  
...  
Keyword(s):  
Silicate Glass ◽  
Combination Treatment ◽  
Bonding Strength ◽  
Glass Ceramics ◽  
Resin Cement ◽  
Cad Cam ◽  
Cam Systems ◽  
Bonding Surface

Effect of Finishing and Polishing on Roughness and Gloss of Lithium Disilicate and Lithium Silicate Zirconia Reinforced Glass Ceramic for CAD/CAM Systems

2018 ◽  
Vol 43 (1) ◽  
pp. 90-100 ◽  
Author(s):  
A Vichi ◽  
R Fabian Fonzar ◽  
C Goracci ◽  
M Carrabba ◽  
M Ferrari
Keyword(s):  
Surface Treatment ◽  
Glass Ceramics ◽  
Lithium Silicate ◽  
Material Surface ◽  
Cad Cam ◽  
Group A ◽  
Treatment Interaction ◽  
Group B ◽  
Cam Systems ◽  
Significant Factors

SUMMARY Objective: To assess the efficacy of dedicated finishing/polishing systems on roughness and gloss of VITA Suprinity and IPS e.max CAD. Method: A total of 24 blocks of Suprinity and 24 of e.max were cut into a wedge shape using an InLab MC-XL milling unit. After crystallization, the 24 Suprinity wedges were divided into four subgroups: group A.1: Suprinity Polishing Set Clinical used for 30 seconds and group A.2: for 60 seconds; group A.3: VITA Akzent Plus Paste; and group A.4: spray. The 24 e.max wedges (group B) were divided into four subgroups according to the finishing procedure: group B.1: Optrafine Ceramic Polishing System for 30 seconds and group B.2: for 60 seconds; group B.3: IPS e.max CAD Crystall/Glaze paste; and group B.4: spray. After finishing/polishing, gloss was assessed with a glossmeter and roughness evaluated with a profilometer. Results were analyzed by applying a two-way analysis of variance for gloss and another for roughness (α=0.05). One specimen per each subgroup was observed with a scanning electron microscope. Results: For roughness, materials and surface were significant factors (p<0.001). Suprinity exhibited significantly lower roughness than e.max. Also the Material-Surface Treatment interaction was statistically significant (p=0.026). For gloss, both material and surface treatment were significant factors (p<0.001). VITA Suprinity showed significantly higher gloss than e.max. Also the Material-Surface Treatment interaction was statistically significant (p<0.001). Conclusions: Manual finishing/polishing for 60 seconds and glazing paste are the most effective procedures in lowering the roughness of CAD/CAM silica-based glass ceramics. Manual finishing/polishing for 60 seconds allows milled silica-based glass ceramics to yield a higher gloss. VITA Suprinity displayed higher polishability than IPS e.max CAD.

Calcium Phosphate Materials in Restorative Dentistry: a Review

1988 ◽  
Vol 2 (1) ◽  
pp. 164-180 ◽  
Author(s):  
R.Z. Legeros
Keyword(s):  
Calcium Phosphate ◽  
Polymer Composites ◽  
Glass Ceramics ◽  
Chemical Properties ◽  
Current Status ◽  
Medical Applications ◽  
Restorative Dentistry ◽  
Calcium Phosphate Cements ◽  
Physico Chemical

This report deals with some of the calcium phosphate materials which are currently used in preventive and restorative dentistry and other calcium phosphate materials which have potential for dental and medical applications. Such materials include those which form calcium phosphate in situ (e.g., Bioglass ceramics and calcium phosphate cements) and those originating from natural materials (such as corals and bones). The reports on the development and current status of the calcium phosphate ceramics and glass ceramics presented here were based on recent reviews and recent evaluations of clinical studies for the period 1975 to 1986 (Table 3) with humans and with animals when reports on human studies were not yet available. Methods of preparation and relevant physico-chemical properties of some of the calcium phosphate materials were based on data reported in the literature and on other studies by the author. New calcium phosphate materials, e.g., calcium phosphate cements, calcium phosphate-coated implants, calcium phosphate/polymer composites, have also been briefly covered in this report. Based on the information summarized in Tables 1 to 6 and on solicited comments from clinicians and researchers involved with calcium phosphate materials, several areas of basic and clinical research are recommended (Table 7).

scholarly journals The Effects of a coffee beverage and whitening systems on surface roughness and gloss of CAD/CAM lithium disilicate glass ceramics

2021 ◽  
Vol 19 ◽  
pp. 228080002110588
Author(s):  
Sarah S. Al-Angari ◽  
Shahad Meaigel ◽  
Nouf Almayouf ◽  
Shahad Quwayhis ◽  
Abdulelah Aldahash ◽  
...  
Keyword(s):  
Surface Roughness ◽  
Computer Aided Design ◽  
Glass Ceramics ◽  
Lithium Disilicate ◽  
Control Group ◽  
Computer Aided ◽  
Cad Cam ◽  
The Mean ◽  
Surface Gloss ◽  
Cam Systems

Objectives: To investigate the effects of a coffee beverage and two whitening systems on the surface roughness and gloss of glazed Lithium Disilicate Glass-Ceramics (LDGC) for computer-aided design/computer-aided manufacturing (CAD/CAM) systems. Methods: Sixty-eight LDGC disks (12 × 10 × 2 mm) were prepared from blocks of CAD/CAM systems (IPS e.max CAD ceramic). Baseline measurements for surface roughness (Ra) and gloss (GU) were taken using a 3-D optical profilometer and a glossmeter, respectively; then specimens were randomized into four groups ( n = 17). All specimens were immersed in a coffee solution (24 h × 12 days) then subjected to two whitening systems. G1-negative control (kept moist × 7 days); G2-positive control (brushed with distilled water, 200 g/load, 2 min twice daily × 7 days); G3-whitening toothpaste (Colgate optic white; relative dentin abrasivity (RDA) = 100, 200 g/load, 2 min twice daily × 7 days); and G4-simulated at-home bleaching protocol (Opalescence,15% carbamide peroxide (CP), 6 h/day × 7 days). The study outcomes were measured at baseline and after the treatments. Data were analyzed using paired T-test and one-way ANOVA (α = 0.05). Results: The mean surface roughness significantly increased ( p ⩽ 0.002) for all groups after the designated treatment protocols. Among groups, the mean surface roughness of G2 and G3 were significantly higher ( p ⩽ 0.001) (Ra: 0.51 and 0.57 μm, respectively) compared to the control group (Ra: 0.23 μm), and were not significantly different from G4 (Ra: 0.46 μm). Surface gloss decreased with no significant change within or among groups after treatment. Conclusion: All glazed LDGC had a significant increase in surface roughness after being subjected to simulated 1 year of coffee drinking and whitening systems (15% CP and whitening toothpaste), and the greatest change was associated with brushing (simulating 8 months). However, coffee beverages and whitening systems had no significant effect on the surface gloss.

Abrasive Technology in Ceramic Restorative Dentistry

2009 ◽  
Vol 76-78 ◽  
pp. 363-366
Author(s):  
Ling Yin
Keyword(s):  
High Efficiency ◽  
Modern Society ◽  
The Elderly ◽  
Restorative Dentistry ◽  
Ancient Technology ◽  
All Ceramic ◽  
Cad Cam ◽  
Catastrophic Fracture ◽  
Ceramic Restorations ◽  
Cam Systems

The application of abrasive technology in dentistry dates from 7000–9000 years. How does this ancient technology affect our modern society where the elderly population needs extensive dental care and ageing well and ageing productively is our first priority? Many patients prefer tooth-colored, all ceramics restorations fabricated by dental CAD/CAM systems for reasons of esthetics, biocompatibility and high efficiency. In spite of the advantages of all-ceramic restorations, ceramic prostheses have not always performed as predicted or desired. Catastrophic fracture has been the most frequently reported reason for failure of all-ceramic restorations. This paper gives a brief review on abrasive technology in ceramic restorative dentistry to highlight problems to be solved by our abrasive technology community.

Sign in / Sign up

Export Citation Format

Share Document