Does a bad bite require orthodontics?

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Last updated May 7, 2022


I am not inconvenienced in my daily life, but do I need correction for a bad bite?


It is recommended to correct the bite with orthodontics, if possible, as it helps to maintain and improve the health of not only the mouth but also the whole body.

This time,I will discuss bad bites for which orthodontics is recommended!

Bad bite for which orthodontics is recommended

Bad bite Correction

There are several types of bad bites, and several bites may be mixed together. Each of these is not only in appearance,Negatively affects the function of chewing food and sending it down the throat, as well as the pronunciation function.There are times when

  • maxillary protrusion
  • mandibular protrusion
  • overbite
  • open bite
  • Pulicosis
  • dentition without gaps
  • jaw deformity

maxillary protrusion

On bucktooths,Bite with the upper front teeth or the entire upper jaw bone protruding forwardIt is.

Some people have difficulty closing their lips and are concerned about their teeth and mouth showing when viewed from the side. Also, if they have difficulty closing their lips and are mouth breathers,The mouth becomes dry and prone to cavities, gum disease, and bad breath.

mandibular protrusion

It is also known as a passive or crossbite bite.The lower front teeth or lower jaw bone protrudes more forward than the upper teeth.

The jaw may appear squat or, in severe cases of mandibular prognathism, the profile may be crescent-shaped.

Because the bite is upside down from normal,Functional disabilities such as difficulty chewing food, and inability to speak well due to breath leaks when pronouncing "sa" and "ta" linesIt is.


With the upper and lower teeth meshing normally,

Bite deep enough to cover lower teethand is also called a deep bite.

Gums tend to protrude when smiling, causing a gummy smile.

In addition, the restricted movement of the lower teeth places a greater burden on the teeth and jaw,Over the years, the back teeth grind down and the overbite worsens, and the lower jaw does not move smoothly, causing TMJ disorder.There are times when

open bite

A bite where the upper and lower front teeth do not hit each other when chewingand is also called an open byte.

A mild open bite does not affect facial appearance as much as maxillary or mandibular prognathism.

However, the burden on the back teeth due to not being able to chew with the front teeth, pronunciation, mouth breathing, etc.Many functional problems lurk in the bite.It is.

Mouth breathing can also lead to dry mouth and increased susceptibility to tooth decay.

dense growth

Teeth that grow in step or overlap with adjacent teethTeeth.

Known as messed-up or uneven teeth, double teeth are also a type of crowded teeth.

Teeth do not grow in the same direction, which affects the appearance of the teeth.

Also, tooth stains build up on the bumpy parts of the teeth.Prone to tooth decay, gum disease, and bad breath, and teeth are ground down and misshapen only in areas where the upper and lower teeth often meet.There are times when

dentition without gaps

Bite with gaps between teethand is also called a gap tooth. When you smile, you may see a gap between your teeth, which can be visually distracting.

jaw deformity

Those that show facial deformity in addition to a bad bite such as maxillary protrusion, mandibular prognathism, and open biterefers to the

Cases of jaw overgrowth, undergrowth, and facial asymmetry resulting in a poor bite are also included in jaw deformities,This can cause problems with both appearance and bite.

Symptoms that can be caused by a bad bite

Bad bite Correction

A bad bite can cause the following symptoms

  • Teeth hurt when biting down.
  • Dental caries, periodontal disease, bad breath
  • temporomandibular joint disorder
  • dyspraxia
  • Other systemic symptoms

It is not a symptom that is always caused by a bad bite, nor is it the only symptom that can be caused by a bad bite, but it is good to keep in mind that it is one of the causes.

Teeth hurt when biting down.

If the bite is bad and only some of the teeth are under strong stress,Inflamed and painful tissue around the root of the toothThere are times when

Occlusal trauma is caused by biting, and as the condition progresses, the bone supporting the teeth may dissolve and disappear, or the teeth may crack.

Dental caries, periodontal disease, bad breath

People with a poor bite tend to have mouth breathing due to difficulty closing their lips.

If you breathe through your mouthDry mouth and increased activity of bacteria that cause tooth decay, gum disease, and bad breathIt is.

In addition, if the teeth have a bumpy arrangement, such as a plexus, it is easy for stains to accumulate on the teeth and it is difficult to brush the teeth,High risk of tooth decay, gum disease, and bad breath in terms of self-careIt is.

temporomandibular joint disorder

A bad bite puts stress on the jaw joints when chewing food and grinding teeth,TMJ disorder may develop.

TMJ disorder can cause symptoms such as pain in the jaw joints, locking of the mouth without being able to open it fully, and jaw jolts or clicks when trying to open the mouth.


Pronunciation is created by the movement and shape of the mouth, tongue, lips, and teeth.

If you have a bad bite, your tongue doesn't attach to the maxilla, air leaks in between the teeth, and so on.Pronunciation can be ambiguous.

Other systemic symptoms

If you can't chew well, the jaw joints and muscles around the mouth become overloaded, and from there, the muscles in the neck and shoulders become strained, which in turn causes the jaw joints and mouth muscles to become overloaded,It can cause stiff shoulders and headaches.

Chewing stimulation is also said to be related to mental stability, suggesting that inability to chew well may cause stress, and inability to chew food properly before it is delivered to the stomach may put a strain on the stomach.

Cost of correcting a bad bite with orthodontics

Bad bite Correction

There are two types of orthodontic treatment for a bad bite: wire braces and mouthpiece braces. The cost of each is as follows

lingual braces (dentistry)
(Wire orthodontics)
About 700,000 to 1,500,000 yenThis orthodontic method uses brackets and wires on the front side of the teeth.
lingual braces (dentistry)
(Wire orthodontics)
About 1 to 1.5 million yenThis is an orthodontic method in which brackets and wires are attached to the backs of the teeth.
half-lingual braces
(Wire orthodontics)
About 800,000 to 1,300,000 yen
This orthodontic method involves attaching brackets and wires to the backs of the upper teeth and the front of the lower teeth.
mouthpiece orthodonticsAbout 800,000 to 1,300,000 yenThis is an orthodontic method in which a transparent mouthpiece is changed every week or two to move the teeth.

Bad Bite? Self Check

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Finally, you can do a self-check to see if you have a bad bite.If any one of these applies to you, you may have a bad bite.

  • Is the face and teeth symmetrical?
  • Are the lips severely protruding or retracted in profile?
  • Do all upper teeth cover the lower teeth?
  • Are the centers of the upper and lower front teeth aligned?
  • Are there overlapping teeth or gaps between them?
  • Are the upper or lower front teeth forward or vice versa?
  • Are any of the front teeth beginning to elongate badly?
  • Is food partially stagnant or stuck between the teeth?
  • Are any of your teeth badly worn?
  • Do you have bad breath?

Source: The Japanese Association of Orthodontics

If you have a bad bite, it is recommended to consider orthodontics

Bad bite Correction

The bite not only affects the appearance but also the function of the mouth.A well-fitting bite extends the life of your teeth and increases the probability that you will have teeth in the future.So, if you are concerned about this, we recommend that you consider correcting the problem.

365dentist can help you choose the right orthodontist for you and provide you with a casual consultation for your concerns in our dentist-operated open chat.

For assistance in finding a dentist, please visit our official LINE, and for a casual consultation about your concerns, please visit Open Chat!

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

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


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