A human dentition can be considered healthy, based on the following conditions
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Healthy tooth structure
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Healthy gum and bone support
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Proper contact with adjacent teeth and correct arch form of the dentition
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Proper contact/ occlusion with teeth of opposing arch
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Healthy tooth structure
The tooth structure is considered to be healthy, when the enamel is bright and translucent without any cracks, or signs of wearing. The tooth surface should be intact without any decay or cavity.
2. Healthy gum and bone support
Such a tooth when surrounded by pink, firm gums which encircles the tooth structure without any signs of bleeding either spontaneous or on stimulation, and no signs of swelling or change in normal color is considered to be healthy.
3. Proper contact with adjacent teeth and correct arch form of the dentition
Proper point of contact between adjacent teeth is very crucial to maintain health of teeth and dentition. This proper contact between teeth protects gums from accidental food lodging and the irritation of food getting stuck between teeth.
4. Proper contact/ Occlusion with teeth of opposing arch
The points of contact of teeth in one arch with those of opposing teeth are very crucial in deciding the longevity of teeth. This contact is called occlusion and is decided by the teeth surfaces, muscles of the face and mouth, jaw joint called TMJ and nervous system.
