What is Overbite, Underbite, Openbite, Crossbite in Orthodontics

| July 11, 2016

Nowadays, Orthodontics is equally important as the other medical branches. It was a bit different few years ago. It is the branch of dentistry that corrects teeth and jaws that are positioned improperly. People are becoming more health as well as self-conscious. Crooked teeth and teeth that do not fit together correctly are not only harder to keep clean, but also destroy your appearance. In such cases, you are at risk of early tooth decay and periodontal disease.

In addition to direct health risks, your imperfect bite may cause extra stress on the chewing muscles that can lead to headaches, TMJ syndrome, and neck, shoulder and back pain. The benefits of orthodontic treatment include a healthier mouth, a more pleasing appearance, and teeth that are more likely to last a lifetime.

To help you out in such situation, orthodontics is there and a specialist in this field is called an orthodontist. They receive two or more years of education beyond their four years in dental school in an ADA-approved orthodontic training program.

Many of us think that one need an orthodontist when we are conscious about our smile or if someone wants to straighten his/her teeth, it means only due to the fact that the person is really conscious about his/her appearance. If you are also among those, who think I that way, then I recommend that you should go through this article.

There are so many problems that are bite related, yes if you have one of them, then you can’t even chew your food properly. Some major bite problems are overbite, underbite, openbite, crossbite. If you are suffering from one of them then consult your orthodontist. Based on diagnostic tools that include a full medical and dental health history, a clinical exam, plaster models of your teeth, and special X-rays and photographs, he can decide whether orthodontics can help you or not.

What is Overbite, Underbite, Openbite, Crossbite in Orthodontics

Overbite, Underbite, Openbite, Crossbite in Orthodontics

If you have any of the below given problems, you may be a candidate for orthodontic treatment.

What is Overbite?

What is Overbite?

Overbite also known as buck teeth or deep bite. A person with overbite have his upper front teeth lie too far forward over the lower teeth. It usually occurs when the upper front teeth protrude over the lower front teeth. Often the lower incisors become invisible. Overbite is due to a disproportionate amount of eruption of front teeth or over development of the bone that supports the teeth and a front to back discrepancy in the growth of the upper or lower jaw. Further problems that can occur due to overbite include:

  • improper functioning of your front teeth
  • jaw or joint problems
  • less attractive smile

Treatment of Overbite in Orthodontics

Overbite can be corrected through moving the front teeth up and/or bringing the back teeth together, In this way, the bite will be open as teeth are properly aligned and the deep bite is eliminated.

What is Underbite?

Underbite causes an awful appearance, where the lower teeth are too far forward or the upper teeth too far back. The lower teeth protrude past the front teeth. An underbite is usually caused by undergrowth of the upper jaw, overgrowth of the lower jaw, or a combination of the two. Additionally, it can also be caused by flared upper incisors, missing lower teeth or a combination of all the above. Underbite can cause following problems if doesn’t correct at right time:

What is Underbite?

  • improper functioning of the front teeth or molars which can lead to premature wear of the teeth
  • chewing problems
  • jaw or joint problems
  • effects your smile

Treatment of Overbite in Orthodontics

Underbite can be corrected through growth modification of the jaws, extraction of teeth and in some cases, surgical correction of the jaws.

What is Openbite?

An openbite can be easily identified because a significant space can be seen between the biting surfaces of the front and/or side teeth when the back teeth bite together. It is an insufficient vertical overlap of the teeth. It is caused by oral habits such as tongue thrust, digit sucking or when the jaws don’t grow evenly. The timing of treatment is critical to the overall success of the therapy.

What is Openbite?

Treatment of Openbite in Orthodontics

Openbite can be corrected in different ways such as growth modification of the jaws using braces, extrusion of the anterior teeth and in some cases surgical correction of the jaws.

What is Crossbite?

When the upper teeth do not come down slightly in front of the lower teeth when biting together normally, such condition is known as crossbite. It can occur in the front and/or the sides of the mouth, i.e. one or more upper teeth bite on the inside of the lower teeth. This can occur with a single tooth or multiple teeth. Early correction of crossbite is recommended. Crossbite can cause following problems:

What is Crossbite?

  • premature wear of the teeth
  • gum disease including bone loss
  • asymmetrical development of the jaws
  • dysfunctional chewing patterns

Treatment of Crossbite in Orthodontics

Treatment of crossbite depends upon the situation like if there is a single tooth crossbite, the tooth can be moved with braces into the correct position. In some cases, a retainer can be utilized. With multiple teeth in crossbite, the arch needs to be expanded with braces or other intra-oral appliances such as an ‘expander’.

How it Works?

Many different types of appliances, including fixed and removable, are used to treat such orthodontic condition. Treatment may involve teeth, retrain muscles and affect the growth of the jaws. These appliances work by placing gentle pressure on the teeth and jaws.

Appliances used for Treatment

The severity of your problem is the most dominating factor that determines which orthodontic approach is likely to be the most effective. Fixed appliances may include:

  • Braces are the most common fixed appliances, consist of bands, wires and brackets. Bands are fixed around the teeth or tooth and used as anchors for the appliance, while brackets are most often bonded to the front of the tooth. Wires are passed through the brackets and attached to the bands. In order to put tension on the teeth, wire is screwed. In this way, teeth are gradually moved from their proper position. Desired results may achieved within a few months to a few years.
  • In addition to braces, there are some other fixed appliances, which are used to control thumb sucking or tongue thrusting. Such kind of appliances are attached to the teeth by bands. But they are lot more uncomfortable during meals, as compare to braces.
  • Fixed space maintainers are also used if a baby tooth is lost prematurely. It is used to keep the space open until the permanent tooth erupts. Usually a band is attached to the tooth next to the empty space, and a wire is extended to the tooth on the other side of the space.
  • Removable space maintainers serve the same function as fixed space maintainers. They have plastic or wire branches between specific teeth to keep the space between them open.
  • Aligners come under the category of removable appliances. If you don’t wear traditional braces, you can go for aligners. They do the same but only without metal wires and brackets. Aligners are virtually invisible and are removed for eating, brushing and flossing.
  • Palatal expander are used to widen the arch of the upper jaw. It is a plastic plate that fits over the roof of the mouth. Outward pressure applied to the plate by screws force the joints in the bones of the palate to open lengthwise, widening the palatal area.
  • Splints, also called Jaw repositioning appliances are worn on either the top or lower jaw, and help train the jaw to close in a more favorable position.
  • Lip and cheek bumpers are popular if your lips or cheeks must be away from the teeth. Lip and cheek muscles can exert pressure on the teeth, and these bumpers help relieve that pressure.
  • Removable retainers are placed with the roof of the mouth. These are called as post treatment devices which are used to prevent shifting of the teeth to their previous position.
  • Headgear consists of a strap, that is placed around the back of the head and attached to a metal wire in front, or face bow. Headgear slows the growth of the upper jaw, and holds the back teeth. In this way the front teeth are pulled back.

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