IPS e.max Veneers – Lithium Disilicate Veneers
Veneer is a thin tooth shaped glass ceramics facing luted to the underlying tooth structure using a filled resin. Veneers, also known as laminates, are usually done for esthetic purposes – to mask discoloration and to correct malformations of tooth shape, spacing and tooth chipping.
Ceramic Veneers, in general, have the following advantages:
It offers better inherent color control and natural look.
The color is stable.
Cemented veneers have good inherent strength. This depends on how thin the cement layer is. The veneer itself is fragile but once cemented to enamel, the veneer develops high tensile and shear strengths.
Veneer surface provides less of a depository area for plaque.
The esthetics are better than other veneering materials because of the ability to control color and surface texture. It has a natural fluorescence which simulate adjacent teeth.
IPS e.max Press uses a lithium disilicate glass ceramic ingot for the PRESS technology. The production process creates a high flexural strength (400 MPa) restoration with accuracy of fit.
IPS e.max Veneers are known for:
Made from transluscent ingots.
Finished veneers can be as low as 0.3 mm.
It needs minimal preparation.
Lithium disilicate veneer owes its esthetics to the unique crystal structure. It diffuses light similar to natural teeth.
Tooth Reduction for e.max Veneers
Depth cuts of 0.6 mm to 0.8 mm. For additional masking capabilities, further reduction is necessary.
A medium grit, round ended, diamond bur is used to remove a uniform thickness of facial enamel following the depth cut grooves.
1 – 1.5 mm incisal reduction is needed. The bur is angled to bevel back the incisal edge.
Chamfer margin interproximally. Correct preparation is vital to attain bulk of porcelain.
It can be conventionally or adhesively cemented. Adhesive cementation can increase the overall durability of lithium disilicate veneer.
 Johnston J F et al: Modern practice in crown and bridge prosthodontics. WB Saunders Company
For more info about Veneers, please read these informative webpages:
 Veneers Cost – http://costveneers.net/
 Porcelain Veneers – http://www.dentalcrown.tv/porcelain-veneer/
Jesus Lecitona+, DMD, MScD-Prosthodontics
Email your questions about Lithium Disilicate Veneers at: jes[at]lecitona.com
Dentures Cost – http://costdentures.com/