The Perfect Smile
Have you ever given any thought to what it actually means to have a “perfect” smile? Most people when asked this question will conjure up mental images of models and Hollywood actors with dazzling teeth. However, there is an actual medical definition of the way the teeth are meant to fit together. The word “occlusion” refers to the alignment of the teeth and the way the upper and lower teeth fit together (bite). Ideally, all upper teeth fit slightly over the lower teeth, just like the top of a house sits over a basement. All teeth are lined up straight and spaced evenly. The upper teeth keep the cheeks and lips from being bitten and the lower teeth protect the tongue. Not all people are so lucky as to have this medically “perfect bite.”
There are any many problems that can lead to a malocclusion, or “bad bite”. For example, crowding of teeth, too much space between teeth, extra or missing teeth, cross-bite, over-bite, and under-bite are all types of malocclusions. Also, various irregularities of the bone structure in the jaws and face can also lead to a malocclusion. Basically, a malocclusion is any misalignment of the teeth or incorrect relationship between the teeth of the two dental arches.
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The technical term for a “bad bite” is a malocclusion. There are many different types of malocclusions depending on what the exact nature of the problem. Sometimes, a poor bite only develops on one side of the mouth instead of both sides. This situation, which is commonly known as a crossbite, happens because of an asymmetry of the teeth or jaw. This lack of balance can occur when some of the teeth on one side are lost, or if they never come in at all.
In a bi-lateral crossbite, (meaning one side only), the top teeth on one side close either outside or across the bottom teeth. This happens because the lower jaw shifts from side to side when the mouth is closing in an attempt to correct for the mismatch of the upper jaw and the lower jaw. This shift creates a misalignment of the teeth.
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Missing permanent teeth or premature loss of baby teeth is one reason why the American Association of Orthodontics (AAO) recommends an orthodontic consultation for children beginning at age 7. The upper lateral incisors, second premolars and third molars (wisdom teeth) are the teeth most likely to fail to develop or erupt. Heredity is considered a major factor when permanent teeth are congenitally missing.
To determine whether or not teeth are actually missing, x-rays must be taken and carefully evaluated by Dr. Mark Paciorek. At times, a tooth may not actually be missing, but hidden underneath the gums and in poor position, preventing normal eruption and requiring orthodontic treatment to bring the tooth into alignment.
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