Guidelines For Dental Lab Choosing The Correct Form Of Zirconia
Most dental practices are switching from the conventional PFM crowns and moving towards the use of zirconia for creating fixed dental restorations. Because zirconia crowns and bridges possess excellent esthetics and are virtually indestructible, zirconia is becoming the most popular material for making dental crowns and other restorations. there are so many brands in the market,Nacera,BruxZir,Sagemax,KATANA etc. you are facing with thousands of series from different manufacturers,trading companies. but how to make the right choice to meet your needs?
Let's following with Vsmile,we deliver you the solutions .
SOLID ZIRCONIA BLOCK
Solid zirconia block ,or "monolithic zirconia" is opaque, it's generally recommended for posterior crowns. solid zirconia contains more stabilizers than high translucent zirconia, making it more durable to withstand forceful chewing and grinding. this material is particularly suitable for patients who may grind their teeth. only minimal clearance is required for this type of restoration, and there is low wear on opposing teeth. Solid zirconia is also very effective for masking highly discolored dental preps, specifically those that have darkened due to previous dental treatments, such as a post and core or a restored dental implant.
Let's meet our representative products of solid zirconia in Vsmile zirconia famliy which we called "HT Zirconia Block" and "ST Zirconia Block",the best solution for posterior crowns,full contour bridge, abutment, inlay&onlay making.
Zirconia UT (49% Ultra High Translucent) , at 700 MPa, is much stronger than porcelain-fused-to-metal (PFM) restorations and maintains a natural and vibrant translucency.the most important thing for this kind of material is 100% metal-free, a feature that prevents gingival darkening and removes the possibility of exposing metallic margins if gum recession begins.
They are naturally esthetic, transmit the color of adjacent teeth, and can be matched to any shade, making high-translucent zirconia suitable for bridges up to 3 units in length.
PRE-SHADED ZIRCONIA BLOCK
Initially, only bone-white substructures could be produced for zirconia crowns, which could sometimes create problems in achieving an aesthetically-perfect appearance. Now, however, the newer generation of materials are pre-shaded and can be fabricated to provide highly aesthetic and naturally-perfect restorations with minimal tooth reduction, meeting or even exceeding patient demands for high-quality work! Currently, the demand for zirconia far exceeds the demand for PFMs, and these older-style restorations are becoming a thing of the past.
Using Pre-shaded zirconia can save your patients more than three hours since there is no need for shading liquids or drying time. Due to its inherent natural fluorescence in any lighting condition—whether daylight, sunshine or black light—restorations will always look natural. no special fluorescent glaze is required.
Layered zirconia is more translucent and opalescent, but unlike solid zirconia, it is especially suitable for anterior crowns. Although generally used for anterior crowns, layered zirconia may also be used for posterior crowns if there is sufficient clearance. When done skillfully, the very best aesthetic results can be achieved. Both solid and layered zirconia crowns have a strength and consistency that is comparable with traditional PFM restorations, yet they provide far superior aesthetics.
you could handle all the indications with their help without exaggeration.