Crowns are covering made above the teeth to repair and strengthen the damaged teeth Crowns can be made of metal alloy or a combination of dental ceramic and metal and pure porcelain crowns (All ceramic).
We have both silver coloured alloy crowns or Gold crowns.Captech gold is far superior than silver coloured alloy crowns as it does not show corrosion or allergy like other metal alloys but they are expensive since they are made up of pure gold
Even those who love to wear Gold ornaments may not be likely to have a golden crown as their front teeth.
Porcelain-fused-to-metal dental crowns (PFM's) are somewhat of a hybrid between metal and porcelain crowns. When they are made, the dental technician first makes a shell of metal that fits over the tooth.A veneering of porcelain is then fused to this metal (in a high-heat oven), giving the crown a white tooth-like appearance.
The metal that lies underneath the crown's porcelain can sometimes be visualized as a dark line found right at the crown's edge.We usually try to position this dark edge just underneath the tooth's gum line. But, if a person's gums happen to recede, this dark line can show, thus spoiling the crown's appearance. While the cosmetic appearance of PFM crowns can be excellent, they often are not as aesthetically pleasing as all-ceramic ones.
Due to their life-like translucency, All ceramic / Full Ceramic crowns can be the most cosmetically pleasing of all the different types of dental crowns. And for this reason, they often make an excellent choice for restoring front teeth. They are biocompatible alternative for people suffering from metal allergies.
Our conventional PFM (Porcelain Fused to metal ) crowns do have 85 to 90 percentage natural looks and are very strong also But being coated over metal ,ceramic will not show the optical properties as that of natural tooth At times it is difficult to mask unaesthetic metallic hue around the margins of PFM crowns At Kamala Dental we replace your bulky PFM crowns with ugly margins to very aesthetic natural looking life like Metal Free Ceramic crowns.
Pressed for Fit, Layered for Beauty
IPS Empress crownsare made of leucite ceramic which scatters light similar to natural tooth enamel and blends in well with other teeth. Restorations fabricated with the Empress have a life like translucent quality to them.
Because of their lower fracture strength (160 MPa), dentist recommends Empress crowns only for un-stressed anterior teeth.
The new IPS e.maxsystem now broadens the spectrum of ceramic IPS alternatives, providing the ultimate in metal-free esthetics with a single (universal) overlay porcelain that can be layered or pressed to the higher strength core materials of lithium disilicate and zirconia.
The innovative IPS e.max Press lithium disilicate glass-ceramic (LS2) provides accuracy of fit, function and esthetics while simultaneously featuring a strength of 400 MPa
An In-Ceram all-alumina core's flexural strength is about 500 MPa. Used rarely for posterior full crowns Its from world leading material manufacturing company VITA
Procera® Crown Zirconia 0.4 – strength combined with better esthetics
Nobel Biocare's Procera® System is renowned for producing all-ceramic products with exceptional marginal fit, strength, and excellent esthetic qualities.
In response to its customers' needs, Nobel Biocare is now introducing a product that will enable laboratories more flexibility in their porcelain applications – Procera® Crown Zirconia 0.4. Based on the well-received Procera® Crown Zirconia, this 0.4mm thick coping version will allow for greater porcelain buildup.
The Procera® Crown Zirconia 0.4 still features market-leading flexural strength of 1200MPa, translucency and metal-free material that enable its use in all indications, but now offers even better esthetics in the anterior region.
LAVA is indicated for anterior or posterior crowns and for 5+ unit bridges (maximum span 48mm) with a maxium of two pontics next to one another in the posterior area and a maximum of four pontics next to one another in the anterior area and can be cemented with traditional crown and bridge cements. A special Vita-shading system and control of the processing steps ensures the high quality and brilliant translucency of Lava zirconia frameworks - characteristics that are vital for the aesthetic success of this system versus other brands. Zirconia materials have varying levels of quality depending on the individual manufacturer's process, although they are chemically similar. These qualitative differences are based on four basic processing parameters for zirconia, which will affect its performance in the mouth: