Why are teeth extracted?
Teeth may need to be removed for a variety of reasons. Below are some
examples.
Very large cavity/ caries that cannot be restored with cements.
Periodontal diseases or in simple words diseases of the gums.
Fractured or broken teeth
Teeth that are traumatized leading to infection and inflammation of
the pulp.
Teeth that fail to erupt or are unable to erupt into the mouth and are
deep inside the bone. They are called impacted teeth and may have to
be removed.
Abscessed teeth are teeth in which the infection has spread to the underlying
bone.
Teeth that are abnormal in development i.e., structure, shape, size,
etc.
Teeth that are involved in cysts or tumors.
Ectopic teeth that have erupted in a wrong place.
Sometimes the orthodontist may remove some teeth to correct crooked
teeth.
How is a tooth extracted?
There are two basic methods of tooth removal. The first method requires
dental forceps and is suitable for the majority of teeth that have erupted.
In this method the tooth is held at its neck by forceps and rocked gently
to expand the surrounding bone socket. This action can be likened to
removing a post set in the ground by rocking it sideward. So, much depends
upon the elastic nature of the surrounding bone. In young patients the
bone is elastic and thus expands easily. In older patients the bone
is more mature and is resistant to expansion. The second method is reserved
for those teeth whose roots either cannot be gripped using the forceps
or the roots are of odd shape and defy all efforts to remove them by
using forceps. In this method, the gums are cut open and the bone around
the tooth is cut to allow removal of the teeth
Does it pain while removing a tooth?
Extractions are done after administration of local anesthesia that makes
the tooth and the surrounding tissues numb. Thus extractions need not
be painful. But a feeling of pressure may be experience by the patient
during the procedure. This is often coupled with fear and anxiety which
makes the patient feel some sort of pain
Why does the dentist ask me to bite
on a gauze pack after extraction?
Soon after extraction the dentist will ask you to bite on a gauze pack
for about 15 minutes. This helps in stopping the bleeding that occurs
after extraction and helps in forming a clot. During this period, the
patient is asked not to open the mouth or talk.
Do I need to take off from work after
extraction?
It is usually advisable to avoid demanding physical work or exercise
for the remainder of the day as such activities may restart the bleeding.
What care should be taken after extraction?
The following care should be taken after extraction: a) Bite on a gauze
pack for 15-20 minutes. b) Take rest and avoid physical activities.
c) Avoid eating till the numbness of the anesthesia persists. d) Avoid
warm food as it can result in bleeding. In addition soft food is advised.
e) The dentist may advise cold fomentation for some patients to reduce
the inflammation and swelling. f) After 24 hours warm saline mouthwash
helps in keeping the wound clean. g) Avoid biting the lips/cheeks.
What are sutures and why are they
given?
Sutures are stitches which maybe given after an extraction. These stitches
help in approximating the gums close together and therefore restrict
the size of the wound. Sutures also help in controlling the bleeding.
Should sutures be removed?
Sutures are of two types: absorbable and non-absorbable. The absorbable
sutures are broken down by the enzymes in the human body. So they just
dissolve in a few days and need not be removed. The non-absorbable sutures
need to be removed after 7-10 days.
What is local anesthesia or LA?
Local anesthesia is temporary loss of sensation to pain and other sensations
such as pressure, temperature and touch in a localized area of the tissue.
This is done by injecting a local anesthetic drug around the tooth being
extracted. The teeth, lips and tongue become numb so the patient does
not feel the pain during the procedure. This numbness lasts for a few
hours. Most extractions are done under local anesthesia.
What is general anesthesia?
General anesthesia is reversible loss of consciousness along with loss
of all sensation. General anesthetic drugs also help in controlling
pain and relax the muscles of the body. General anesthetics are used
in complicated surgical procedures that may take a long duration and
when the surgery is done in multiple sites. They are also useful in
unco-operative patients.
Why does it bleed after extraction?
Once the tooth is extracted a wound is created and therefore bleeding
occurs. The bleeding stops once a stable clot forms. But in some patients
minor seeping of blood may be seen for a day or two after extraction
and their saliva may be tinged with blood. This need not be a cause
for worry to the patient. However profuse bleeding must be brought to
the notice of your dentist.
What happens after a tooth is removed?
After a tooth is removed, it leaves behind a socket in the bone that
was occupied by the roots. This socket gets filled with blood, which
soon forms a clot. In a few weeks time the clot slowly reorganizes into
bone and fills the socket.
Why is the wisdom tooth removed so
often?
The wisdom teeth are the third molars, which are the last teeth in the
dental arch. The teeth usually erupt between 18 and 25 years of age.
In many individuals, the wisdom teeth remain in the bone as they may
not have adequate space in the dental arch to emerge out. This condition
is called impaction. In addition the third molar may erupt in abnormal
inclination thus affecting the health of the adjacent teeth. So the
wisdom teeth need to be removed often.
Why is it difficult to remove the
wisdom tooth?
The wisdom teeth are often inside the bone and therefore cannot be removed
easily by using the forceps. In addition their position and angulation
may be abnormal. They often require surgical extraction by cutting open
the overlying gums and cutting the bone around the teeth.
Why does a swelling appear after
extraction?
Some extractions are followed by appearance of swelling. This is nothing
to worry about, as it is a part of the normal healing process. In reaction
to the extraction, the tissues show an inflammatory reaction to heal
the wound created by the removal of the tooth. Swelling is a part of
the normal inflammatory process. However the dentist may advice you
to have cold fomentation over the area to reduce the swelling.
What is dry socket?
Dry socket is a condition characterized by onset of pain and foul odor
a few days after the extraction. This occurs due to lysis or dislodgment
of the clot that forms after the extraction leaving behind the bony
socket that is very sensitive and tender. The socket may also get infected.
This is one of the rare complications of extraction.
Why does the tooth break sometimes
during the extraction?
Teeth are embedded in bone. The principal behind extraction is that
the tooth is held by forceps and rocked from side to side to allow the
bony socket to expand. In patients who are aged, the bone is very hard
and mature and does not easily expand. In addition the teeth also become
brittle with age or may have been weakened due to dental decay. The
two factors, namely weakened teeth and brittle bone may result in breaking
of the tooth during extraction. The small piece of tooth left behind
can be removed by appropriate root forceps or may require surgical opening
of the gums and cutting of the bone to remove the broken fragment.
Should the gums be cut while extracting
some teeth?
Those teeth that cannot be gripped by a forceps or are embedded inside
the bone may require cutting of the gums and the overlying bone to remove
the teeth. This is called surgical method of extraction.
Can extraction be done on a heart
patient?
Usually extractions may not pose any problems for heart patients. However
the dentist may require your physician's consent. In addition prophylactic
antibiotics may be prescribed prior to the extraction as a precautionary
measure. Some sedative may also be prescribed prior to the extraction.
Can extraction be done on a diabetic
patient?
Patients who have their diabetes under control by diet and medication
can undergo extraction. However the dentist may give you a prophylactic
antibiotic prior to the procedure. He would also advice you to have
normal food and medicine before the appointment. Sedative may also be
prescribed.
