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Normal appearance of the tongue, showing a degree of visible white coating and normal irregular surface on the posterior dorsum. The most common location for mouth-related halitosis is the tongue. [10] Tongue bacteria produce malodourous compounds and fatty acids, and account for 80 to 90% of all cases of mouth-related bad breath. [11]
Effects depend on the substance; hydrogen peroxide removes a bleached layer of skin, while nitric acid causes a characteristic color change to yellow in the skin, and silver nitrate produces noticeable black stains. Chemical burns may occur through direct contact on body surfaces, including skin and eyes, via inhalation, and/or by ingestion.
Production of hydrogen peroxide (H 2 O 2) is a proposed mechanism for bacterial antagonism in vitro, [16] [17] [18] inhibiting growth of microorganisms via direct interaction or via human myeloperoxidase. [19] [20] [21] However, in vivo, the role of peroxide is uncertain.
Pericoronitis is inflammation of the soft tissues surrounding the crown of a partially erupted tooth, [1] including the gingiva (gums) and the dental follicle. [2] The soft tissue covering a partially erupted tooth is known as an operculum, an area which can be difficult to access with normal oral hygiene methods.
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Hydrogen peroxide with concentrations of 10% or higher can cause tissue damage, be corrosive to mucous membranes and cause burning sensation to the skin. [53] Chemical burns can commonly occur whilst bleaching, irritation and discolouration of the mucous membranes may occur if a high concentration of oxidising agent comes in to contact with ...
Erythema (redness) and edema (swelling) of papillae on the tip of the tongue may be a sign that the tongue is being habitually pressed against the teeth. The number and size of filiform papillae may be reduced. If the tongue is very red and smooth, then there is likely a local or systemic cause (e.g. erythematous candidiasis, anemia). [5]
Range of mouthwashes by Listerine. Mouthwash, mouth rinse, oral rinse, or mouth bath [1] is a liquid which is held in the mouth passively or swirled around the mouth by contraction of the perioral muscles and/or movement of the head, and may be gargled, where the head is tilted back and the liquid bubbled at the back of the mouth.