1. Chronic gingival margin inflammation or periodontitis disease manifested as red, swollen gums, easy bleeding and bad breath, but generally no pain, longer duration, usually no spontaneous bleeding only bleeding when brushing or eating, bad breath, non-corrupt , gums, without necrosis.
2. Herpetic gingivostomatitis, viral infections, multiple children. Rapid onset, generally have a high fever (38 ° C and above). Gingival hyperemia is generally spread to dental equipment all gums but not limited to the interdental papilla and gingival margin can also be violations of the oral mucosa or lip skin. The typical disease lesions of multiple small blisters, formed after the destruction of a small ulcer or merging, no necrosis, not easy to wipe off the surface of the exudate. The halitosis degree of light. Some resistance to a very weak coexistence of herpetic stomatitis and necrotizing gingivitis.
3. Acute leukemia in itself does not cause acute necrotizing gingivitis, but may be associated with and co-exist. Since a large number of immature white blood cell infiltration, extensive gum swelling, necrosis, pain, and involving the attached gingiva, automatic bleeding and Summed up the problem of adult orthodontics bad breath, anemia and weakness in the gingival connective tissue. Blood examination showed white blood cell count is very high and appear immature white blood cells are helpful in diagnosis. Of which, such as lack of granulocytes, such as AIDS, may also occur gingival necrosis.
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