Fillings are needed when an irreversible tooth decay develops. It requires us to remove the softened parts gently and apply the filling. This can stop the decay to develop further and preserve the health of the tooth.
Fillings used to be made of amalgam but since it contains mercury and it has a poor aesthetic value they are not used anymore. The materials used by us come in the matching color of the tooth, they are as hard as enamel and their surface can be polished completely smooth.
Which materials do we use?
They are hard filling materials prepared in laboratory after dental impression then cemented in dental surgery. The filling is prepared with the CEREC machine and it is made of porcelain.
It is the application of a tooth-coloured composite resin to repair a decayed, chipped, fractured or discoloured tooth. Most often, bonding is used for cosmetic purposes to improve the appearance of a discoloured or chipped tooth. It can also be used to close spaces between teeth or to change the colour of teeth.
Stone or noble metal jewels can be fixed onto the surface of the tooth with special adhesive material. They can also be removed without damaging the enamel at a later stage if required.
Plastic aesthetic fillings have long been used in dentistry since they hold many advantages over the amalgam fillings. They are way more aesthetic, fast to prepare and can last over 10 years. However this technology is not perfect either: the fillings can break when sudden, large force is applied, the outer rims can change colour over time and the certain shapes can not always be produced. This was the reason why ceramic fillings with enamel-like hardness and matching tooth colour appeared years ago. These were shaped and burned by the dental technician and placed in the mouth in similar process to ceramic crowns by the dentist . This used to take a week and the patient had to visit the practice twice to get the filling or crown prepared.
By cutting the time of the process the Cerec 3 system offers a better solution with using a computer driven ceramics polishing machine. High hardness ceramic blocks in 15 shades and 4 sizes are supplied with the system.
After we shaped the hole for the filling or polish the tooth for the crown we prepare a digital imprint with a scanner. The images generated allow us to construct a 3 dimensional picture. We can design the replacement part based on the image with help of the software. Then the right shade and size ceramic block is selected and the polishing machine prepares the exact shape needed. As soon as the filling or crown is ready (4-5 minutes for smaller fillings, 10 minutes for larger ones and crowns) we fix the replacement with cement.
This technology enables us to work much more precisely than with the conventional imprinting method combined with laboratory preparation.Inaccuracies can be avoided, there is no risk of damage during transport and the colour of the replacement can be more accurately matched. And above all the whole process takes only one hour.