Kettles used to
boil "hard" water rich in minerals will soon develop a layer of scale.
In a similar way, the plaque that is formed on the surfaces of our teeth
due to inadequate cleaning will harden into tartar as the calcium in our
saliva gets deposited there.
Once calculus has
formed on the surfaces of our teeth, they become virtually impossible to
remove by normal brushing. If left alone, the rough surfaces of
tartar will attract even more plaque. This will lead to gum disease,
which usually starts off as bleeding gums, gradually progressing to gum
shrinkage, and finally loosening teeth and gum infections. Deposits of
plaque and calculus may also make our teeth more prone to decay.
Scaling is the
procedure used to remove calculus. It is usually completed with
polishing to smoothen the surfaces of your teeth and to remove stains.
Unless otherwise advised, you should have scaling and polishing done
once every 6 months.
People unhappy
with the colour of their teeth (i.e. too dark) may consider bleaching.
While simple oral cleanliness along with regular scaling and polishing
will remove most of the surface stains on our teeth caused by smoking
and coffee, the deeper and more intrinsic stains are a lot more
difficult to remove. Bleaching is a procedure which uses
oxygen-releasing chemicals to oxidise and decolourise pigments in the
teeth.
Veneers is a
procedure whereby tooth-coloured material is bonded to the surfaces of
your teeth. This procedure is usually performed to mask the originally
unacceptable appearance of the teeth. There are two different materials
available: porcelain or composite resin.
A crown is like
a cap that goes over a tooth. Sometimes, when a tooth is very heavily
restored, its multiple fillings may not look good or last long because
even the strongest filling materials have their limitations.
The most durable
solution for restoring badly damaged teeth is to prepare the tooth for a
crown; usually a porcelain cap which not only protects the remaining
tooth structure, but also restores the original appearance of the tooth.
Crowns cannot be
constructed in one visit. The dentist must first take impressions of
your mouth. This is followed by tooth preparing, a second impression and
the prepared tooth is fitted with a temporary crown. When the permanent
crown is completed in the laboratory, the crown is fitted and
permanently cemented on the final visit.
Crowns require a
certain minimum amount of tooth structure above the surface of the gums
to hold the them. When a tooth has deteriorated to almost gum level, the
only way for it to be able to hold a crown is to make use of the root
portion for support.
To do this, root canal treatment must first be performed to remove and
clean out the remains of the pulp. The seal at the root tip must be
maintained. Then, a post is inserted into the root canal of the tooth.
With part of the post sticking out of the gums, a core is built over it
to provide a foundation for the crown to stick on. These sort of crowns
are called post-core crowns.
Root canal
treatment may be carried out as an alternative to tooth extraction. It
serves to preserve the tooth and takes at least two visits to complete.
Three to six months later, a post-core crown must be constructed.
Bridges are
actually extensions of crowns with replacement teeth attached to
"bridge" the space left by missing teeth. They are prepared in almost
exactly the same way as crowns, except that for bridges, these crowns
will have an additional burden of supporting the replacement teeth.
Like crowns,
bridges are made from porcelain and metal and can be made to look very
natural. Strength, biocompatibility, and the lack of a plastic
plate that covers much of the mouth make them a much better alternative
than dentures.
With good modern
anaesthetics available, this is a procedure that we should no longer
fear. Extractions are performed for a variety of reasons. One of the
most common reasons is when a diseased or severely broken tooth can no
longer be saved. The problem may be associated with tooth decay or gum
problems.
It is not a good
idea to delay extraction until pain is experienced. This is because
local anaesthesia will be rendered less effective in an area of
infection. If your dentist advises an extraction, you should get it done
before the pain becomes unbearable.
Another reason
for extractions is when teeth are crowded and squeezed out of alignment.
If a tooth is completely squeezed out of alignment, then extraction may
be the most convenient way of dealing with the cosmetic problem.
Teeth that are
squeezed out can also trap food in the awkward spaces that they create.
This not only contributes to bad breath and hygiene problems, but also
the decay of adjacent teeth and gum problems. Extractions of these teeth
serve as preventive treatment to protect properly aligned and functional
teeth.
Tips:
1. Have a good
meal before the extraction.
2. Relax and breathe deeply through your nose during the procedure.
3. After the extraction, bite firmly on the gauze provided for 15
minutes.
4. Avoid spitting or rinsing your mouth. Swallow your saliva.
5. Do not smoke, drink very hot drinks or alcohol.
6. Do not exert yourself. Rest at home.
7. Take care not to bite your lip when it is numb.
8. When bleeding has stopped, eat soft food and keep the wound clean.
9. If pain persists after three to four days, see your dentist.
The wisdom tooth
is the third molar. Most people have one in each quadrant of the mouth.
However, it is not uncommon to find individuals with less than 4 wisdom
teeth. Because this tooth usually erupts when the person is between 17
to 21 years of age. In reality, the tooth is often non-functional or
even problematic.
When there is
insufficient space in the jaw for the tooth to emerge fully, it may get
trapped under gum and bone. Partial eruption makes the tooth susceptible
to gum infection, which may result in recurrent bouts of pain and
swelling. Left alone for long periods, gum problems may emerge.
In certain cases,
the tooth may be slanted against the next tooth - the second molar. The
resulting gap between the two teeth traps food and promotes bad breath
as well as decay.
Wisdom tooth
surgery is usually carried out to save the second molar or stop the
recurrence of gum swelling. Most wisdom teeth in the upper jaw can be
extracted without surgery. Wisdom teeth in the lower jaw are usually
more troublesome. Either local or general anaesthetic can be used.
However, for relatively simple cases, especially when only one
tooth is removed, local anaesthesia, delivered by injection, is usually
sufficient.
After surgery,
the wound is closed with sutures. You may be given antibiotics and
painkillers. Expect some pain, swelling and difficulty opening your
mouth for the next few days.
Tips:
1. Have a good
meal before the extraction.
2. Relax and breathe deeply through your nose during the procedure.
3. After the extraction, bite firmly on the gauze provided for 15
minutes.
4. Avoid spitting or rinsing your mouth. Swallow your saliva.
5. Do not smoke, drink very hot drinks or alcohol.
6. Do not exert yourself. Rest at home.
7. Take care not to bite your lip when it is numb.
8. When bleeding has stopped, eat soft food and keep the wound clean.
9. If pain persists after three to four days, see your dentist.
Most of us must
have experienced sensitive teeth at one time or another. When we eat or
drink something cold, a sharp pain runs through our teeth. There are
however, several different causes for sensitive teeth. One of the most
common causes amongst people with good oral hygiene is an abrasion
cavity. These are not cavities caused by tooth decay, but either by
wrong brushing technique or using a hard toothbrush or both. Another
cause for sensitive teeth is tooth decay. When in doubt, let your
dentist check it out for you.
Dentures are
used to replace missing teeth. They serve both a cosmetic as well as a
functional purpose, enabling the user to chew better and also to prevent
the remaining teeth from slanting into spaces in the mouth where teeth
had been extracted.
Though the
benefits of wearing dentures are obvious and many, a person wearing
dentures for the first time will often realise the importance of the
teeth he had lost. This is because no matter how comfortable, dentures
are almost never as strong and stable as the patient's healthy natural
teeth. Adapting to a new set of dentures will take time and patience.
As a person ages,
the jaw without teeth will shrink and originally well-fitting
dentures may start to get loose. A new set of dentures may have to be
made every seven to ten years and the inconvenient process of adaptation
starts all over again.
The procedure for
denture construction takes three to four weeks, over four to five
visits, depending on the complexity of the case. It is also advisable to
delay denture construction until extraction sockets have healed
completely. Otherwise, the patient must be prepared to do a second set
when the gums have changed.
In situations
where a tooth needs to be extracted and the patient does not want to go
around without a tooth, an immediate denture can be done. In this case,
no extraction is done on the first visit. A denture including the
artificial replacement for the tooth to be extracted and issued
immediately after extraction. Ideally, the denture should be a temporary
measure prior to bridge construction.
Full dentures
are constructed for people without any teeth left. Full denture
construction is slightly more complicated than partial denture
construction as there are no teeth to hold the denture. Adhesion to the
surrounding soft tissue is the only way to keep a denture in the mouth.
Full denture
construction for patients with less than ideal gums and bones will pose
serious challenges for the dentist. Unfortunately, few options are
available.
Chrome dentures
are similar to acrylic dentures except in the base or framework of the
prosthesis. The teeth and "gums" used in a chrome denture are no
different from those used in acrylic dentures. However, chrome, being
much stronger than acrylic, allows a slimmer and sleeker design of the
denture base. Not only can the base be thinner, it can also cover a
smaller area of the mouth. Higher accuracy also provides a better fit
and longevity. In most cases, chrome dentures are superior to their
acrylic equivalents.