Let’s see what a dental mechanic does in order we had beautiful smiles.
All-cast crown from stainless steel.
Each tooth has its number. This one is 46th. The main technological stages are:
1. Making of a plaster model.
2. Modelling of a tooth.
3. Metal casting.
4. Processing and adjustment of a crown.
Low jaw imprint
A dental mechanic turns imprints into real models. Making a split cast is the most difficult in this work.
Drilling a plastic socket with a laser.
Inserting pins, pouring the imprint with plaster and covering it with the socket.
The plaster has dried out and the imprint can be removed.
Turning of a dental arch
And cutting it into separate segments
In this particular case we cut it into 5 segments. Then the tooth demanding the crown must be turned. Excess plaster below the arrow must be removed.
They use special lacquer that serves as cement.
Assembling the model and connecting the jaws to put them into the articulator: the device imitating a human skull.
Modelling is the next stage.
Using medium wax. It is applied to make the anatomic shape of the tooth. Special attention is paid to the contact with neighbouring teeth.
Upon the modelling an extra reservoir for metal is soldered to the crown. The whole construction is fastened and placed into a special mould.