People want a perfect smile with no teeth removal during an Orthodontic
Treatment but for every individual, treatment is planned according to their
malocclusions. We have two sets of teeth, primary & permanent. When primary
teeth do not fall out by a certain age & in a certain order, at times this
affects the eruption pattern of permanent teeth, which eventually leads to
crowding, proclination, spacing, jaw discrepancy, midline shifts, and impacted
teeth. So in order to avoid above listed malocclusions, your orthodontist would
advice removal of teeth either primary or permanent, based on the involvement
of dentition getting affected.
Permanent teeth need to be removed for various reasons-
1.
Crowding:
The foremost
reason for extaction of teeth is crowding. When the amount of space required to
align the teeth is less than the space available, either the arches need to be
expanded or number of teeth need to be reduced. In cases of severe crowding,
permanent teeth need to be removed in order to create sufficient space for
teeth alignment. In few cases of mild to moderate crowding can be corrected
with expanders & braces. Expansion of bone is limited by structure of bone,
supporting tissues, facial appearance etc.
2.
Proclined
teeth:
The
position of lips is determined by the underlying teeth. Proclined teeth fail to
form a lip seal in relaxed state. In cases of proclination, removing one or two
teeth on both the sides will allow the orthodontist to move the teeth backwards
to improve the lip posture.
3.
Bite
correction:
Overbite- is the distance between maxillary &
mandibular anterior teeth in the anterior-posterior
axis. If it is not corrected it may lead to trauma & attrition of teeth.
Overjet- is the extent of horizontal overlap of the
maxillary central incisors over the mandibular central incisors. Overjet is
increased as the maxillary central incisors are protruded.
So, in cases of overbite & overjet when upper & lower jaw
sizes are mismatched, surgical repositioning is the ideal treatment. Small
sized discrepancies eliminate the need for jaw surgery. Removal of teeth
depends upon the extent of discrepancies involved.
The other reasons like- asymmetries, impacted teeth or extra teeth
are also taken into account by your orthodontist for extraction of teeth. If
your Orthodontics
Training Course recommends
extractions, go according to your orthodontist because they know what is
appropriate for you. At Dr.
Sachdeva’s Dental Institute, we incorporate piezosurgery in our
practice for atraumatic extractions. Since, the bone has to be maintained in an
orthodontic patient, piezosurgery is a relevant & predictable method for
performing atraumatic tooth extraction.
Piezosurgery works in the 20- to 32-KHz range and its maximum
ultra-sound power is 90 W. The tips are made of titanium alloy. There are six
different tips available for adaptation to various clinical situations. The
first tip is arrowlike and sharp on both sides; it was used to penetrate the
PDL at the coronal aspect of the socket and start sectioning the PDL fibers. To section the PDL fibers deeper in the
apical direction, four syndesmotomes were used. Two of them are straight, with
teeth, and their cutting directions are parallel and perpendicular to the long
axis of the tip. The other two are angled at 45 degrees (one to the right and
one to the left) to better adapt to the socket’s geometry. The last tip, which
also had teeth, is indicated for removal of ankylosed teeth.