Teeth Making Machine dental Zirconia block

 

1. Raw Materials of Dental Zirconia Block
Dental zirconia blocks are mainly composed of zirconium dioxide (ZrO₂), a high-strength, biocompatible ceramic material. The main raw materials include:

High-purity zirconium dioxide powder (3Y-TZP 4Y/5Y-TZP)
3Y-TZP (3 mol% yttria-stabilized tetragonal zirconia polycrystal) has high strength and durability.
4Y/5Y-TZP provides better translucency for anterior tooth restorations.
Yttria (Y₂O₃) – acts as a stabilizer to keep zirconia in the tetragonal phase and enhance fracture toughness.
Alumina (Al₂O₃) – improves stability and anti-aging properties.
Other trace oxides – adjust translucency, hue and mechanical properties.

 

 

Features of Teeth Making Machine dental Zirconia block：
High strength and fracture resistance (3Y-TZP for posterior teeth, 5Y-TZP for anterior teeth)
Excellent biocompatibility (suitable for long-term oral use)
Natural translucency and aesthetics (multi-layered zirconium oxide mimics natural tooth enamel)
Minimal wear on the opposite teeth (optimized microstructure)
Compatible with CAD/CAM milling machines

 

Type	Code	Translucency	Flexural strength	Color
White zirconia block	HT	41%	＞1200Mpa	white
	ST	43%	＞900Mpa
Monolayer preshaded zirconia block	HTC	41%	＞1200Mpa	A1.A2.A3
	STC	43%	＞900Mpa	A1.A2.A3.A3.5 A4. B1.B2.B3.B4 C1.C2.C3.C4 D2.D3.D4 BL1.BL2.BL3 BL4
3D Multilayer preshaded zirconia block	STM	≥Top-Bottom≥49%-≥43%	Top-Bottom ≥800Mpa-≥1100Mpa
	ATM	Top-Bottom≥55%-≥46%	Top-Bottom ≥600Mpa-≥900Mpa
3D multilayer preshade zirconia block(made of Tosoh zirconia powder)	TSTM	Top-Bottom≥43%-≥49%	Top-Bottom ≥800Mpa-≥1100Mpa
	TATM	Top-Bottom≥46%-≥55%	Top-Bottom ≥600Mpa-≥900Mpa

 

Our indifications

 

Clsssification		HT	ST	SST	STC	SSC
Indication	Coping	ü	ü	ü	ü	ü
	Bridge Coping	ü	ü	ü	ü	ü
	3-4 units bridge	ü	ü	ü	ü	ü
	5-6 units bridge	ü	ü	ü	ü	ü
	Over 7 units bridge	ü	ü	×	ü	×
	Cantilever bridge	ü	ü	×	ü	×
	Inlay bridge	ü	ü	×	ü	×
	Maryland fixed bridge	ü	ü	ü	ü	ü
	Telescope crown	ü	ü	ü	ü	ü
	Abutment	ü	ü	ü	ü	ü

 

Tip:

 

1.√This means best choosing;

2.√This means not best choosing;

3. ×This means can't do it;

 

 

Manufacturing process of dental zirconia blocks
Step 1: Raw material preparation
Zirconium dioxide powder is precisely mixed with yttrium oxide and other stabilizers to achieve an ideal balance between strength and translucency.
The powder mixture is ball-milled or jet-milled to achieve ultra-fine particle size to ensure uniformity.
Step 2: Spray drying and granulation
Fine zirconia powder is processed by spray drying to form free-flowing spherical particles.
This step increases the bulk density of the material for uniform compaction during pressing.
Step 3: Cold isostatic pressing (CIP)
Zirconium oxide particles are placed in a mold and cold isostatically pressed (CIP) at high pressure (up to 200 MPa).
This ensures uniform density distribution, reduces internal defects and improves mechanical strength.
Step 4: Pre-sintering
The pressed zirconia blocks are pre-sintered at around 900-1100°C to obtain sufficient strength for milling while maintaining machinability.
At this stage, the material is in a chalky state and can be easily processed in a CAD/CAM milling machine.
Step 5: Shaping and machining
The pre-sintered blocks are precisely cut into standard sizes (e.g. 98 mm discs) compatible with 5-axis milling machines.
The surfaces are smooth and the edges are refined for easy handling.
Step 6: Final sintering
After milling into the desired dental restoration shape (crown, bridge, etc.), the zirconia restoration undergoes final sintering at 1,450-1,600°C.
During this process, the zirconia shrinks by about 20-25% and reaches a final high-density state with a strength of 900-1,200 MPa (3Y-TZP has a higher strength).
Step 7: Coloring and glazing (optional)
Coloring: Some zirconia blocks are pre-colored, while others require liquid coloring before final sintering.
Glazing and polishing: The finished restoration is glazed and polished to enhance aesthetics and smoothness.

 

 

 

 

 

Zotion attends many dental shows in domestic market and international market. Like Moscow dental show in Russia, Hanoi dental show in Vietnam, New delhi dental show in India, IDS dental show in Germany, Dubai dental show, South China dental show in Guangzhou, Sino dental show in Beijing, Shanghai dental show etc.

 

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