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.”

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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.

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