- SUCCESS & FAILURE OF ALL-CERAMIC
SUCCESS & FAILURE OF ALL-CERAMIC
Today, people are quite aware regarding the appearance and
position of their teeth. They want to have perfectly erect, even
and whitish teeth. So, what they expect from their artificial tooth
is that they would replicate the natural ones in appearance as well
as in strength. Initially, metal substructure was used to replace
the missing tooth which at times resulted in grey discoloration on
top of the gum line making them appear quite unpleasant. Therefore,
this technique of tooth replacement and restructure was developed
in which ceramic core was pushed in order to create the crown.
These all-ceramic crowns, without any metal touch provide high
degree of customisation. Staining and blemish can be rectified with
the help of ceramic substructures. Moreover, the porcelain over the
crown unites better with ceramic instead of a metal core and leads
to a well-built bonded crown.
Dental ceramics is helpful in repairing the teeth and even
replacing them if required with their substitutes like metals, or
other substances capable enough to provide them strength (Zohairy
& Feilzer, 2005) to endure routine wear and tear and possessing
similar physical properties as the natural one (Noort, 2002).
Ceramics have become quite acceptable alternative for such
procedures due to its consistency, natural appearance and
attractiveness when used in place of a natural dental crown
(Albakry, et al., 2003). But, ceramics are inclined to be frail and
therefore are not a permanent solution for the patient and often
they break down when significant burden is put on the teeth by the
patient (Guess et. al., 2009).
With one absent tooth, the best alternative would be to get a
dental crown placed over a dental implant which would provide
strong foundation to the dental crown and it would also function
like the absent tooth. A dental implant present on the top of
natural root offers better support and a natural appearance. If
many teeth are absent, then the dentist will suggest a dental
bridge with multiple options available to the patient. Besides
giving the teeth a natural look, a dental bridge helps to stabilise
the teeth beside the absent teeth and makes the smile of the
patient more pleasant. It also checks the shrinking of the jawbones
due to the reduction in the size of the jaw.
The dentists are required to obtain an informed consent of the
patient regarding before applying all-ceramic restorations. The
primary reasons for the failure of the all-ceramic restorations may
be interior splits, erroneous ceramic layers, structure of the oral
cavity or teeth and deterioration in the material caused due to
excessive heat or cold.