Zirconia is a very hard ceramic that is used as a strong base material in some full ceramic restorations. Zirconia is relatively new in dentistry and the published clinical data is correspondingly limited. The full name of zirconia used in dentistry is yttria-stabilized zirconia or YSZ. The zirconia structure is usually designed digitally with scans of the patient, impression, or model. The core is then milled from a block of zirconia in a soft pre-sintered state. Once milled, the zirconia is sintered where it reaches its full strength of 1200MPa.
Many dentists will not use monolithic crowns on anterior teeth unless a full mouth restoration is being done. Layered zirconia crowns offer highly aesthetic properties as well as incredible strength and durability.
FULL MILLED ZIRCONIA (FMZ) is the most cost effective and strong restoration available and is highly suited for use with posterior restorations.
FULL MILLED ZIRCONIA
- Full milled Zirconia crowns are highly suited to restoring posterior crowns.
- High strength 1200Mpa
- Suitable for large span bridges and implant restorations
- Moderate translucency
- 8 basic shades that can be individually characterised
- Blocks out underlying stump discolouration.
ULTRA TRANSLUCENT ZIRCONIA
- Full milled or layered design
- High Strength at 600Mpa
- Suitable for anterior restorations
- High translucency
- Superior strength to emax restorations with comparable translucency
- Does not block out underlying stump discolouration