All Ceramic Restorations
Ivoclar Vivadent’s patented lithium disilicate material is truly a revolution for the dental industry. Never before has a material been able to combine high strength, high esthetics and ease of use into one product, until now.
IPS e.max is a lithium disilicate glass ceramic that has optimized translucency, durability and strength for full anatomical restorations. Due to the use of new technologies and optimized processing parameters, IPS e.max lithium disilicate has evolved beyond previously available lithium disilicate ceramics.
IPS e.max lithium disilicate restorations exhibit superior durability featuring 360-400 MPa of flexural strength. When fabricated to full-contour, the monolithic structure is the most robust ceramic system tested to date. The opalescence, translucency and light diffusion properties of IPS e.max lithium disilicate were all designed to replicate natural tooth structure for beauty and undetectable restorations.
Zirconia has proven itself as a biocompatible material in implant dental surgery for many years.
Zirconia demonstrates no measurable solubility or water absorption and shows a high initial stability and excellent long term stability. Therefore, the strength of this material is maintained, even after a long period in the mouth. Zirconia has no allergenic potential and is very biocompatible. Vita VM9 overlay porcelain has all the familiar advantages of a feldspathic overlay porcelain with respect to biocompatibility and abrasion characteristics.
Zirconia withstands many times the load level occurring in the mouth (loads measured for anterior teeth up to 400 N, posterior teeth up to 600 N, for bruxism even up to 800 N [5.1; 5.2; 5.3; 5.4; 5.5; 5.6]). Its strength is considerably higher than other all-ceramic materials. Unlike infiltrated or glass ceramics, zirconia is particularly suitable for posterior bridge frameworks and for long spans.
Zirconia technical information:
Flexural strength (Punch Test) (ISO 6872) > 1100 MPa
Weibull strength (σ0) (3-Punkt) 1345 MPa
Stress resistance (2% / 5 Jahre) 615 MPa
(Youngs) Modulus of elasticity (E) > 205 GPa
Weibull-modulus (m)10.5 Crack growth parameter (n) 50
Fracture toughness (KIC) 5-10 MPa m1/2 CTE 10 ppm
Vickers hardness (HV 10)1250
Melting point 2700 ºC
Grain size 0.5 µm
Density (ρ) 6.08 g/cm 3
Solubility (ISO 6872) 0 µg/
All our porcelain veneers are manufactured using Vita VM9 feldspathic porcelain powders. Vita VM9 overlay porcelain has all the familiar advantages of a feldspathic overlay porcelain with respect to biocompatibility and abrasion characteristics.