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Crowded Teeth

Crowded TeethA disharmony better tooth-size and jaw-size can result in crowded, irregular teeth.

Crowded teeth can look unattractive and can be more difficult to clean.
Orthodontic treatment usually involves the use of braces which are most efficient and accurate way of aligning teeth.

Sometimes it is necessary to extract teeth to provide sufficient space to allow the teeth to be aligned in a stable and harmonious position within the jaws and face.

Deep Bite

Deep BiteThe upper and/or lower front teeth can overupt to produce a deep bite.

In severe cases, the upper teeth can cover the lower teeth completely.
A deep bite can cause excessive wear of the front teeth and can damage the gum behind the upper front teeth.

Deep bites can exert excessive strain on the jaw joint resulting in tempero-mandibular joint problems.

 

Cross Bite

Cross Bite

The upper teeth should fit outside the lower teeth like a lid on a box. If the upper jaw is too narrow, the lower jaw usually swings to one side to allow the back teeth to mesh. A posterior cross-bite results.

Posterior cross-bites can result in uneven wear of the teeth and can place extra strain on the jaw joint resulting in tempero-mandibular joint problems.

Orthodontic treatment involves the use of a fixed or removable appliance to widen the upper jaw (maxillary expansion). Once the upper jaw has been widened, the lower jaw can close normally.
Front teeth can also erupt in anterior cross-bite.

 

Protruding Teeth

Protruding TeethProtruded teeth result when the position of the upper jaw is forward of the lower jaw.

In severe cases, the lower lip may sit behind the upper front teeth and push them further forward to accentuate the disharmony. Protruded teeth can be unattractive and prone to accidental damage. Often teeth become worn unevenly. Sometimes, the lower front teeth can over-erupt and damage the gum behind the top front teeth.

Orthodontic treatment involves aligning, levelling, and coordination of both arches with braces, in growing patients, the bite is corrected with headgear, elastics or functional appliances.

In severe cases, especially if growth is complete, jaw surgery might be required to correct the jaw disharmony. 

 

Thumb Sucking

Thumb SuckingSucking the thumb (or fingers) can produce a localised deformation of the teeth and the supporting bone.

Once the sucking habit has been stopped, as illustrated on the right, natural improvement can occur.

If the habit takes years to cease, orthodontics maybe required to reposition the teeth.

 

 

Spaced Teeth

Spaced TeethSpaces can result from a disharmony between tooth-size and jaw-size or by abnormal tongue thrusting activity. Spaces between the teeth can look unattractive and can interfere with speech.

Orthodontic treatment usually involves the use of braces to align the teeth and to close the spaces. Abnormal tongue activity must be eliminated or the spacing is like to recur.

 

 

Under Bite

Under BiteWhen the lower jaw is forwards in relation to the upper jaw, the lower front teeth protrude beyond the upper teeth and an “under-bite” results.

An under-bite can be unattractive and can cause uneven wear of the front teeth and jaw joint problems.

In mild cases, conventional orthodontic treatment with braces, elastics, and revers-pull headgear can be used to correct the problem.

In more severe cases, jaw surgery is required to correct the bite and to create a more harmonious facial profile.

 

Open Bite

Open BiteAn open-bite exists when opposing teeth don’t meet. An open-bite can cause eating problems and excessive wear of those teeth which do make contact. An open-bite can be unattractive and can be associated with speech problems. Open-bites are often caused by abnormal tongue habits and, although the open-bite can be closed with braces, unless the abnormal tongue habits are corrected, the open bite is likely to recur.

 

 

Impacted Teeth

Impacted TeethImpacted teeth don’t have sufficient space to erupt. Orthodontic treatment involves creating space to allow the impacted tooth to erupt.

 

 

 

 

 

Missing Teeth

Missing TeethMissing teeth can be unattractive.

Opposing and adjacent teeth can drift into the space to create further problems.

Orthodontic treatment involves moving all teeth into correct position, and creating proper space to facilitate replacement of the missing teeth. 

 

 

Ectopic Teeth

Ectopic TeethEctopic teeth are teeth which develop in the wrong position. In most cases, ectopic tooth can be repositioned with braces. In this case (pictured left) an ectopic canine (eye tooth) was surgically exposed and braces were used to move it into its correct position.

 

 

 

 

Other Problems

An orthodontic opinion might also be sought when there is:

  • Difficulty in chewing or biting
  • Speech difficulty
  • Grinding or clenching of teeth
  • Jaws that shift or make sounds.

 

Before After

This picture shows the teeth of a patient before orthodontic treatment.

This picture shows the teeth of a patient after orthodontic treatment.

 

 

 

Overview