Aging resistance upon on Bloomden 3D Pro multi-layer and other zirconia blocks
The experimental observations on ageing have been briefed. Thus, it seems that the degradation depends on the time and occurs most rapidly at temperatures of 200-300°C. Even it is caused by the tetragonal-monoclinic transformation, the phenomenon it is always accompanied by micro- and macro-cracking. The process develops from the exterior and continues inside the sample. In the presence of water the transformation develops faster. The transformation may be slowed of it is used a lower grain size and a bigger amount of stabilizer, we did the same case and test for 3D Pro multilayer zirconia.
Another study conducted by Technician Cici showed that the same ageing process occurs also in shaded zirconia like ST preshaded zirconia or UT preshaded zirconia. The coloring method has no significant influence on the phase transformation proportions and the flexural strength during LTD. It was concluded that the ratio of the phase transformation of zirconia due to low temperature depends on the time elapsed.
After its discovery as a dental material, zirconia, under various forms, is used worldwide in order to replace metal-ceramic restorations. It is obvious that the usage of ceramic-zirconia versus metal-ceramic restorations it is more suitable due to biocompatibility, the appearance as close as possible to the natural teeth. Monolithic zirconia restorations proved better mechanical properties, but they offer a limited tooth color reproduction, while the surface state and wear behavior still raise some questions.
It must be considered in future that the perfectibility of technology and materials will follow. This is why further studies and researches are needed to improve wear behavior and optical characteristics of the zirconia prosthetic structures and to minimize the risk of low temperature degradation in vivo.
Dental crown helps in restoring the natural appearance of teeth. Instead of losing teeth when the root is still good, the top part of the teeth- the crown is removed and a new crown is put in its place.
Zirconium crown was developed because there was a need for non-metallic dental material. Zirconium, which has some metal atoms, is naturally white, similar to the colour of your teeth. The amount of metal is almost negligible.
A zirconia dental crown provides number of advantages such as:
- It can be matched to the colour of normal human teeth.
- Zirconium is biocompatible- This means that the body can accept it.
- Solid zirconia crowns are very strong and stronger than the ones that are layered with porcelain. They are far better than a porcelain crown.
- Zirconia crowns can be bonded with other metals as well, giving your dentist more options.
- Zirconia can be easily shaped into tooth form. In other words, zirconia crowns can be implanted in a single appointment.
At Bloomden you will find a team of experienced technicians who provide professional dental material equipment such as zirconia crowns with an aim of gifting beautiful smiles, please visit www.bloomden.com to know more about zirconia crowns.