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Examples include iron (black stain), iodine (black), copper (green), nickel (green) and cadmium (yellow-brown). [3] Antibiotics. Tetracycline and its derivatives are capable of intrinsic discoloration (discussed below). However other antibiotics may form insoluble complexes with calcium, iron and other elements that cause extrinsic staining. [11]
Hemosiderin can be identified histologically with Perls' Prussian blue stain; iron in hemosiderin turns blue to black when exposed to potassium ferrocyanide. [6] In normal animals, hemosiderin deposits are small and commonly inapparent without special stains.
The main cause of gingival bleeding is the formation and accumulation of plaque at the gum line due to improper brushing and flossing of teeth. The hardened form of plaque is calculus. An advanced form of gingivitis as a result of formation of plaque is periodontitis. Other conditions associated with gingival bleeding include: [4] Tooth or gum ...
The perception of tooth colour is multi-factorial. Reflection and absorption of light by the tooth can be influenced by a number of factors including specular transmission of light through the tooth; specular reflection at the surface; diffuse light reflection at the surface; absorption and scattering of light within the dental tissues; enamel mineral content; enamel thickness; dentine colour ...
Pulpitis can often create so much pressure on the tooth nerve that the individual will have trouble locating the source of the pain, confusing it with neighboring teeth, called referred pain. The pulp cavity inherently provides the body with an immune system response challenge, which makes it very difficult for a bacterial infection to be ...
The symptoms range from a minor nuisance to being disabling in their impact on eating, swallowing, and talking, and the severe forms can cause people to lose weight. There is no cure for aphthous stomatitis, [ 5 ] and therapies are aimed at alleviating the pain, reducing the inflammation and promoting healing of the ulcers, but there is little ...
Analysis showed that iron was already present when the teeth erupted from the gum tissue, and was also present despite Ganus having a very different diet to wild Komodo dragons, he added.
Cetylpyridinium chloride is known to cause tooth staining in approximately 3 percent of users. [14] The Crest brand has noted that this staining is actually an indication that the product is working as intended, as the stains are a result of bacteria dying on the teeth. [ 15 ]