Smile is an expression denoting pleasure, sociability, happiness, or amusement .Disorders of the mouth can significantly impair the quality of smile and life .

Bacteria and viruses usually cause oral infections. They can affect the teeth, gums, palate (PAL-it, the roof of the mouth), tongue, lips, and inside of the cheeks. Simple oral infections are limited to the mouth and are different from oral lesions , which are non-infectious and may be a sign of an illness that involves other parts of the body.

Oral infections are very common. Tooth decay is the second most common infectious condition, after the common cold.

Other Oral InfectionsAphthous ulcer ,Candidiasis , Canker sore , Cavity , Cold sore , Dental caries ,Gingivitis,Gingivostomotitis,Gum disease,Herpangina,Herpes labialis,Periodontal disease,Thrush,Tooth care,Tooth decay

Recently, it has been recognized that oral infection, especially periodontitis, may affect the course and pathogenesis…

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