What is the difference between those who can and cannot have partial correction?

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Last updated January 25, 2022

Because of the short treatment time and low cost of partial orthodontic treatment, many people may be candidates for treatment for those who are concerned only about the alignment of their front teeth.

However, there is a limit to the number of cases to which it can be applied because of partial tooth movement. In this case,We will show you what the difference is between those who can and cannot do partial correction, based on examples of those who cannot do partial correction.

There is also a partial correction self-check at the end, so you can look in the mirror to see if you can do a partial correction!

Examples of Difficulties with Partial Correction

What can be partially corrected,Only cases that can be improved by localized movement of only the six front teeth on each of the upper and lowerIt is.

Therefore,Partial orthodontic treatment is not available for the following cases that require movement of the back teeth

  • Cases that require more than 3 mm of space in the anterior teeth to heal
    • double tooth
    • Overlapping front teeth
    • overbite
    • receiving window
  • Cases with bite problems
    • gap (in teeth)
    • overbite
    • receiving window
    • open bite
    • overbite
  • Cases with multiple problems
  • When partial correction is required to achieve the same result as total correction

Let's take a look at what exactly that looks like.

Cases that require more than 3 mm of space in the anterior teeth to heal

Partial orthodontic treatment may involve IPR (disking), in which the space between the teeth is thinly shaved to make room for the teeth to line up.

Since IPR can only be performed to the point where the teeth are not affected, the maximum space that can be created per tooth is limited to 0.5 mm.

In the case of partial orthodontic treatment, six upper and lower teeth each are to be treated,0.5 mm x 6 pcs = 3 mm is the maximum amount of space that can be created by partial orthodontic treatmentThe first two are the following.

Therefore,If more than 3 mm of space is needed to align the teeth in the following casescannot be cured by partial orthodontic treatment because it requires correction of the back teeth, IPR, or extraction of teeth.

  • double tooth
  • Overlapping front teeth
  • overbite
  • receiving window

double tooth

A double tooth is a condition in which the third tooth from the front grows forward or higher than the other teeth.

Because double teeth are so prominent, it is easy to focus only on them, but the causes of double teeth includeMixture of multiple causes, including "bucktooth," "bite," and "tooth size."The following is a list of the things that we have done.

Therefore,In many cases, partial orthodontic treatment is not possible because the double tooth must be moved to the back teeth to provide more than 3 mm of space to fix the double toothIt is.

Overlapping front teeth

As with double teeth, problems with the bite of the back teeth or protruding teeth may be the underlying cause of the front teeth not lining up.

If the front teeth simply overlap each other and there is less than 3 mm of space needed to align the front teeth, partial orthodontic treatment is possible,Cases with large overlap or multiple problems cannot be partially corrected.

overbite

Bucktooth is a condition in which the upper teeth grow forward at an angle or the entire jawbone protrudes from the upper teeth due to a small lower jaw or a large upper jaw.

Whether partial orthodontic treatment is possible depends on the cause and the degree of bucktooth. If the space needed to retract the front teeth back is within 3 mm, partial braces can be used.

However, bucktooths that need to be retracted or the bite of the back teeth need to be fixed,Partial braces are not possible because it will be necessary to extract teeth or cut the jawbone to make room for the teeth to be pulled back.

receiving window

A passive mouth is a condition in which the lower front teeth are more forward than the upper front teeth when chewing, or the upper front teeth are not covered by the lower front teeth.

As with bucktooth, whether partial correction is possible depends on the cause and the extent of the dentition.

Basically, the space created in the front teeth within 3 mm cannot be improved,Moderate to severe passive mouths cannot be partially corrected.

Cases with bite problems

Misaligned teeth are often related not only to the way the teeth grow, but also to the way the back teeth bite together. In the following tooth alignment,Partial orthodontic treatment is not possible if there is a bite problem.

  • gap (in teeth)
  • overbite
  • receiving window
  • open bite
  • overbite

gap (in teeth)

A gap between teeth is a condition in which there is a gap between the teeth. There is plenty of room for the teeth to line up, though,Partial braces are not possible because when the gap between the front teeth is closed, there is too much space between the front and back teeth.

In addition, if the bite height is too low, resulting in crooked teeth, or if the upper front teeth hit the lower front teeth when chewing, partial orthodontic treatment may be difficult because the crooked teeth may recur or not heal if the bite is not improved or if the lower teeth are in the way.

overbite

Protruding teeth are caused by the orientation of the teeth, the size of the jawbone, and the height of the bite.

If the bucktooth is simply a problem with the way the teeth grow, it can be corrected with partial orthodontics,Anterior-posterior bite due to the size of the jaw(at sentence-end, falling tone) indicates a confident conclusionBucktooths with problems or problems with the height of the bite cannot be partially corrected because they require correction of the back teeth.

receiving window

Like bucktooth, passive mouth is caused by the way the teeth grow, the size of the jaw, and the height of the bite.

If the size of the jaw or the height of the bite is the cause of the receiving mouth, partial correction is not possible.

open bite

Open bite is a condition in which the front teeth do not bite together when chewing, leaving a gap between the upper and lower teeth.

The condition varies from mild, which the patient does not even notice, to severe, in which the patient does not chew until about the fourth tooth from the front (first premolar).

Basically, the cause is not the front teeth but the bite of the back teeth, which cannot be cured by partial orthodontic treatment.

overbite

Overbite is a condition in which the upper front teeth are heavily covered by the lower front teeth when chewing.

In a clean set of teeth, the upper front teeth should cover the lower front teeth by about 2 mm. If the bite is so deep that the lower front teeth are not visible when chewing, it is considered a severe overbite.

Partial orthodontic treatment is not possible for overbite because the height of the back teeth must be improved.

Cases with multiple problems

In addition to space and bite problems, partial braces cannot be used if the following problems exist

  • way of growing teeth
  • occlusion (of teeth)
  • deviation from the center
  • Habits such as tongue, lips, cheekbones, etc.

If there are multiple concurrent problems,Total orthodontic correction involving tooth extractions and movement of back teeth, as well as habit improvement, is necessary.

When partial correction is required to achieve the same result as total correction

In partial orthodontics, it is not possible to use means such as tooth extraction, jaw bone cutting surgery, or back tooth movement to create space for larger teeth, as is the case with full orthodontics,It is necessary to move teeth within a very limited space.

Therefore,

  • I want to fix bucktooth and arch of the mouth and make the profile beautiful.
  • I want to fix the left-right misalignment of the jaw.

If you have any requests such as,The amount of tooth movement may not be sufficient and the result may be unsatisfactory.

Depending on the case, it is not possible to achieve the same results with partial correction as with total correction.

Even when partial correction is possible, it is important to properly consider whether you are satisfied with the finished product.

Partial Correction Self-Check! Can you do it? Can you do it?

Although a thorough examination using x-rays and other means and a dentist's diagnosis are necessary to determine whether partial orthodontic treatment is ultimately possible, we have collected some points that you can check by yourself before visiting a dental clinic.

The types are separated by type, so you can check them while looking in the mirror as a guide.If any one of these applies, partial correction may not be possible.

  • Double teeth, overlapping front teeth type
  • Sudden tooth type
  • bucktooth type
  • Receiving type
  • Open bite and overbite type

Double teeth, overlapping front teeth type

  • Upper and lower front teeth overlap, making it difficult to see teeth retracted inward
  • Teeth are twisted so much that the sides of the teeth are visible.
  • have double teeth

Sudden tooth type

  • Gaps between teeth.
  • When chewing, the lower front teeth are covered by the upper front teeth and are not visible

bucktooth type

  • I can't close my lips.
  • When lips are closed, the tip of the mandible becomes stiff like a dried plum
  • When the mouth is closed and the face is viewed from the side, the mouth protrudes like a bird
  • The lower jaw appears to be absent compared to the upper jaw

Receiving type

  • Lower front teeth are more forward than upper front teeth when chewing
  • When viewed from the side, the line connecting the forehead, nose, and tip of the chin resembles a crescent moon.
  • have a crooked chin

Open bite type

  • Upper and lower front teeth do not bite together when chewing
  • Teeth that don't bite until the fourth tooth from the front to the back
  • When biting, the front teeth bite but the back teeth do not

Overbite type

  • Lower front teeth attach to upper jaw when chewing
  • When chewing, the lower front teeth are covered by the upper front teeth and are not visible

Other

  • Distorted when the face is viewed from the front.
  • Teeth not centered when biting or smiling

If you want to discuss whether partial orthodontic treatment is possible or not.

Partial orthodontic treatment should be performed under the dentist's diagnosis, taking into consideration the condition of the teeth and the finish.

Even if there are items that apply in the self-check, a detailed examination by a dentist may be indicated for partial orthodontic treatment, so if you are concerned about this, please consult us first.

If you would like to discuss whether partial orthodontic treatment is possible, you can consult with a dentist online.365dentistis convenient.

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Graduated from Nagasaki University School of Dentistry, ~2018 Kyushu Medical Center, 2018-present Working at a dental clinic in Tokyo

UyRZkXPjQvAn5BK9ai6vfhAEgYGCePrS3Id158EZKuev 2TIlSXaZPkxY9dJ 3vCTCm7hqIEw6AzmlpdiuMD8H 9aD01UftplKrgMtn7dmYeSupervisor: Dentist/Naomi

After completing clinical training, worked in cosmetic dentistry in Tokyo. Currently a dentist and dental writer.

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