LT HT ST SST White dental Zirconia Block Dental Materials

 

 

LT, HT, ST and SST white dental zirconium oxide blocks offer excellent performance and aesthetics for a wide range of dental restorations.
1. Transparency
Imitates natural tooth enamel.
The LT (Low Transparency), HT (High Transparency), ST (Standard Transparency) and SST (Super Standard Transparency) variants offer different degrees of transparency. HT is suitable for restorations that require a more natural, transparent effect, LT offers a higher opacity for more robust restorations such as crowns or bridges.
2. Color and Aesthetic Realism
Zirconium oxide blocks are available in a variety of shades that mimic natural tooth colors, such as A1.A2.A3, etc.
The color stability and natural translucency of zirconium oxide blocks ensure that the final restoration meets high aesthetic standards, whether it is a long bridge, crown or veneer. SST (Super Standard Translucency) offers excellent aesthetic performance for veneers, which require more light transmittance and a natural look.
3. Shape and Hardness
The hardness of zirconium oxide ensures that the material can withstand chewing forces in the mouth
The SST variant is suitable for veneers, has a more aesthetic surface, and is more difficult to collapse while still maintaining the proper shape. The HT and LT types are better suited for crowns and bridges, which require more strength without compromising aesthetics.
4. Application Areas (LT, HT, ST, SST)
LT (Low Translucency): Suitable for long bridges and crowns where strength and durability are critical. LT blocks offer a balance of opacity and strength.
HT (High Translucency): Used for aesthetic applications, such as crowns, which require a higher degree of natural light transmission. HT blocks create restorations that closely resemble the appearance of natural teeth, especially in the anterior area.
ST (Standard Translucency): A middle ground between LT and HT, suitable for a variety of restoration types. ST is often used for everyday restorations, such as crowns and bridges, which do not require as much transparency as HT, but still require good aesthetics.
SST (Super Standard Translucency): Best for veneers, where aesthetics is a top priority. SST blocks offer the perfect balance of transparency and durability for thin, highly esthetic restorations that must blend perfectly with the surrounding teeth.
5. Biocompatibility
Zirconium oxide blocks do not release harmful substances and are highly biostable.
6. Wear resistance
Restorations last longer and are less likely to chip, crack or wear.
Durable restorations made with LT and HT zirconia are less likely to degrade over time

 

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

 

Density before sintered	>3.15±0.05g/cm3
Density after sintered	>6.0g/cm3
Coefficient of thermal expansion	(10.3±0.5)*10-6k-1
Chemical solubility after sintered	< 100ug/cm2
Cytotoxicity test	0 level
Radioactivity after sintered	<0.1Bq/g
Sintering temperature	1480~1530℃, Recommend 1520℃

 

 

Advantages of LT HT ST SST White dental Zirconia Block Dental Materials：

 

1.The zirconia block has been certified by CFDA,CE & ISO of the People's Republic of China.

2.Without any additive, yttrium stabilized zirconia purity as high as 99% above, more green, more safety.

3.The first domestic ivory color, more in line with the natural tooth dentin, enamel saturation, transparency.

4.After dry pressing and cold isostatic pressing double pressing process and product of three point bending strength performance is more outstanding, and uniform and stable.

5.Though proprietary technology mean to control grain size, make the product pervious to light performance is superior.

6.Special pre-burn treatment process, to ensure that the ceramic block of moderate hardness, easy cutting, no collapse porcelain.

7.Strict production process control procedures to ensure products stability, shrinkage, consistent.

Our zirconia blocks/blanks are compatible with different brands of CAD/CAM system and manual system, such as Zircon system, Sirona Inlab System, Kavo System, Aman system and Wieland system.

We have CE certificate. Each of our zirconia blocks/blanks is marked with shrinking ratio.

 

 

 

 

 

 

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