Express™ XT VPS Impression Materials – first-class impressions on the first take
Designed for both the 1-step and 2-step impression techniques, next–generation Express™ XT VPS materials from 3M ESPE help you achieve outstanding impression accuracy and a great fit of the final restoration.
Great detail reproduction through superior hydrophilicity and flow behaviour
Distortion-free removal from the mouth due to excellent toughness
Reduced chance of costly remakes due to almost 100% recovery from deformation.
Highly positive feedback from practitioners.
Results from a Europe-wide market survey show high overall customer satisfaction with the Express™ XT VPS materials tested. When asked for the major advantages, dentists most often mentioned precise detail reproduction, automatic mixing, easy handling and good setting time.
79% of the participating dentists would definitely recommend Express™ XT materials to their colleagues. Moreover, 87% indicated that their labs’ rating was good to excellent.
Express™ XT Penta™ Putty Soft Trial Kit
40-0.2g capsules: 20 each of Body shades A2 and A3; Technique Guides Instructions for Use1 base paste – 300 ml, 1 catalyst - 60 ml, 1 Express™ XT Regular Body Cartridge – 50 ml, 1 information for use
Express™ XT Penta™ Putty Trial Kit
1 base paste – 300 ml, 1 catalyst - 60 ml, 1 Express™ XT Light Body Flow Quick Cartridge – 50 ml, 1 information for use
Posterior all-ceramic Lava™ Bridge using Express™ XT Penta™ Putty in combination with Express™ XT Ultra-Light Body Quick VPS Impression Material in the 2-step technique
by Dr. Gunnar Reich, Munich, Germany
Figure 1: Initial situation: PFM bridge with insufficient marginally sealing and underlying caries.
Figure 2: Prepared teeth.
Figure 3: Prepared teeth with retraction cords in situ (double-cord technique).
Figure 4: Filling of the impression tray with Express™ XT Penta putty VPS material from the Pentamix 3 mixing unit.
Figure 5: Carved primary impression.
Figure 6: 2-step impression with Express™ XT Ultra-Light Body Quick and Express™ XT Penta putty material.
Figure 7: Impression detail with Express™ XT Ultra-Light Body Quick and Express™ XT Penta putty material. Express™ XT Ultra-Light Body Quick material penetrates deep into the sulcus and flows in very thin layers.
Figure 8: Final situation: all-ceramic Lava bridge shortly after placement. Gingiva is recovering.
The hydrophilicity of an impression material contributes to the reproduction of detail in a moist environment. The method most often used to determine the hydrophilicity of an impression material is the contact angle measurement: the lower the contact angle – the better the hydrophilicity.
Express™ XT VPS Impression Materials show the fastest decrease in contact angle and therefore outstanding hydrophilicity among all leading VPS impression materials tested.
When an impression is removed from the mouth, it is exposed to two principal forces, elongation and compression. Express™ XT VPS Impression Materials have an unique ability to withstand these deformation forces.
To avoid tearing while the set impression is removed from the mouth, an impression material does not only need to have high tensile strength but also high elongation potential that allows the material to stretch. The combination of these two parameters is described as toughness. It is defined as the total amount of energy an impression material can absorb until it tears. Therefore toughness is the best measure of an impression material’s ability to withstand the forces it is exposed to – during mouth removal and when the model is fabricated – without tearing.
In comparison with different VPS wash materials, Express™ XT Light Body Standard VPS Impression Material displays high values for toughness. Clinically this means that Express™ XT impressions are less likely to tear upon removal from the mouth.