Upon the examination of the mouth, the dentist makes his diagnosis. If the dentist sees dental fillings and crowns that do not meet properly, he tries to get it corrected and the grinding and the clenching of teeth should be stopped. Receding gums can make teeth super sensitive to hot and cold substance.  The dentist may prescribe an agent to desensitize the teeth.  Relief may also be provided by certain toothpastes.  When teeth sensitivity continues, the dentist suggest that composite resins or other types of fillings, such as amalgam or gold, may be placed in the tooth. Moreover, calcium, magnesium, phosphorus, vitamin B complex, and vitamin C are the nutritional supplements that are prescribed to prevent tooth decay and avoid the repair of gum tissue.