H

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• halitosis
  

  halitosis bad breath of oral or gastrointestinal origin

• Heimlich Maneuver
  

  Heimlich Maneuver technique employed by rescuer for obstruction of victim's airway

• hematoma
  

  hematoma swelling of effused blood beneath tissue surface

• hydrogen peroxide
  

  hydrogen peroxide disinfecting solution used in dental irrigation procedures or as mouth rinse

• hygienist
  

  hygienist dental auxillary who cleans teeth and provides patient education administers local anesthetic, nitrous oxide and performs periodontal scaling

• hyperemia
  

  hyperemia increased blood flow may cause dental sensitivity to temperature and sweets may precede an abscess