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For a denture is considered ideal, it must meet several requirements: it must be proportionate to the dimensions of the jaws, and its component parts must meet the same level, in a uniform position, not interbreed and arranged symmetrically on both dental arches, so that the top lightly cover the bottom when you close your mouth. There are many requirements, and therefore it is difficult to see perfect teeth. Instead, it is quite common for teeth to be diverted, or grossly separated, however, overlapping, crowded.
These are common forms of malposition, although not unique because the defects can be very different and more or less marked. Apparently this is a cosmetic problem, but in reality the malposition may involve some serious problems. For example, there may also malocclusion, ie an abnormal contact between the teeth of the maxilla and the mandible, which produces difficulties in mastication or speech, or conducive to the retention of food and dental caries or periodontal disease, inflammation, etc.. Therefore defects should be corrected tooth position, and this aspect is concerned the field of dentistry called orthodontics.
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