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dentistry |
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dentistryCare and treatment of the teeth and gums. Orthodontics deals with the straightening of the teeth for aesthetic and clinical reasons, and periodontics with care of the supporting tissue (bone and gums). The bacteria that start the process of dental decay are normal, nonpathogenic members of a large and varied group of micro-organisms present in the mouth. They are strains of oral streptococci, and it is only in the presence of sucrose (from refined sugar) in the mouth that they become damaging to the teeth. Fluoride in the water supply has been one attempted solution to prevent decay, and several vaccines against it are under development.
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