The market for zirconia dental materials is further expanded

The market for zirconia dental materials is further expanded

 

Zirconia ceramics have performance advantages over other dental materials. 

The materials for dental restoration mainly include: resin, common alloy (nickel chromium, etc.), precious metal alloy (gold platinum, etc.) and ceramics (zirconia and alumina, etc.).

From the five dimensions of “Aesthetic, Biological performance, stability, mechanical properties and cost”, zirconia ceramic materials have many advantages over other materials.

 

Zirconia materials are widely used in dental restorations. At present, the main methods of dental restoration can be divided into the following three categories according to the degree of tooth damage:
(1) Inlay repair, suitable for partial damage of the teeth, filled with inlays to protect and repair the teeth. Commonly used inlay repair materials are mainly resin, metal and ceramics;
(2) Crown repair, suitable for teeth defects, or lesions, but the roots are still in the situation. Commonly used crown materials are alloys, porcelain and all-ceramic;
(3) Dental restoration, suitable for missing teeth, or extracted teeth.

 

Performance comparison of different dental materials

Material	Aesthetic	Biological   performance	Stability	Mechanical   performance	Cost
Common   alloy	Poor	Poor	Better	Better	Lowest
Precious   metal alloy	Poor	Best	Better	Better	Higher
Resin	Better	Better	Poor	Poor	Lower
Other ceramics	Better	Better	Better	Poor	Higher
Zirconia	Best	Better	Best	Better	Higher

 

 

 

 

Some Vsmile dental zirconia block parameters

 HappyZir for Full Contour

 

Property	Unit	HappyZir+Value	ISO   Requirement
Bulk   Density	g/cm3	6.085~6.095	≥   6.00 (ISO 13356)
ZrO2 +   HfO2 + Y2O3	%	>   99.5	>   99
ZrO2	%	91.6	N/A
Y2O3	%	5.9-6	4.5   - 6
HfO2	%	3	≤   5
Al2O3	%	<   0.15	<   0.5
Other   Oxides	%	<   0.2	<   0.5
Mean   Linear Intercept Distance	µm	0.25   ± 0.05	≤   0.4 (ISO 13356)
Biaxial   Flexure Strength	MPa	1000   ± 100	≥   500
CTE		10   x 10-6(25~900ºC)	N/A
Final   Sintered Hardness	HV10	1200~1300	N/A
Pre-Sintered   Hardness	HV10	60~70	N/A
Translucency	1-CR%(1.0mm)	41~45	N/A

 

 

Editor: VSmile Co.,ltd

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