Tooth supplement
- crowns and bridges
The making of crowns or bridges
are justified in the following cases:
- In the root treated tooth the blood circulation
is ceased, the tooth dries out and become fragile.
Preventing this, it is advised to place a crown
on the tooth;
- At broken tooth, following the pinned artificial
stump gluing;
- It is suggested to have a crown made to restore
the unity of the row of the teeth about 4-5
weeks after tooth removal.
Tasks preceding the treatment
Each tooth supplement is preceded
by a thorough dental examination and a treatment
plan. About the adjacent teeth a visiographyical
X-ray is made. At suspicion of metal allergy,
a special dental metal allergy analysis has to
be done. The interference is made with a local
anaesthetic lidocain injection. It is important
that patient should eat before the dental treatment,
because after anaesthetic injection, he/she can
not eat until the numbness holds (about 3-4 hours).
Process of making crowns and bridges
Before grinding off the teeth,
a so - called study imprint is made fixing the
starting phase. The imprint is the basis of the
dental technician’s work. After local anaesthesia
follows the grinding of the teeth cloak and the
chewing surface as much as the thickness of the
crowns. Afterwards the dentist takes a lower and
upper imprint. The dental technician prepares
the crown or bridge in several phases, which normally
takes a week or two. In necessity, the patient
receives a temporary crown on the grinded down
teeth, either to protect the teeth from sensitivity
or avoiding any shifting in the meantime. The
dentist sticks the final crown up at a later time,
when the patient thoroughly is used to it.
The materials of crowns and
bridges
Our dental clinic produces 90%
porcelain crowns in all of the cases. These crowns
are on the visible surfaces white and on the non
- visible parts near to the gum equipped with
narrow metal rims. The metal beneath the porcelain
can be silver or gold alloy. Our dentists normally
do not advise the plastic crowns, because it has
a shorter life span, is less aesthetic, wears
off easier and discolours earlier than porcelain.
Complications after making
crowns and brides
The crowns average life span
is 8-10 years. Should the gum atrophy, it necessarily
should be replaced. With an accurate and regular
tooth brushing the lifetime can be increased.
The use of tooth silk between the crowns is important.
The patients can keep clean the area under the
bridges with a tooth gap cleaning brush, where
a normal toothbrush can’t get in. Gingivitis might
occur. Too high crown or bridge could cause jaw
joint pains and bite on sensitivity. The non-root
treated teeth could have necroses under the bridge,
if too much tooth material is removed during grinding.
Therefore, the front teeth and the small molars,
almost in each case have to be root treated before
making the bridge. In case of a metal allergy,
severe gingivitis could arise and at the crown
rims a black discolouring is visible. Therefore
it is practical to have a special dental metal
allergy test done before larger teeth supplements.
Guarantee
For the dental technical works
the laboratory undertakes a one - year guarantee.
The guarantee condition is a half yearly dental
control.
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