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Tooth whitening or tooth bleaching is the process of lightening the colour of human teeth. [1] Whitening is often desirable when teeth become yellowed over time for a number of reasons, and can be achieved by changing the intrinsic or extrinsic colour of the tooth enamel . [ 2 ]
Teeth whitening products can sometimes be a hit or miss, but there's a lot to love about the MySmile Teeth Whitening Pen, which pledges to get rid of stains from smoking, coffee, and wine.
Hair straightening is a hair styling technique used since the 1890s involving the flattening and straightening of hair in order to give it a smooth, streamlined, and sleek appearance. [1] It became very popular during the 1950s among black males and females of all races.
Remineralization is a natural process and does not have to involve fluoride. Tooth remineralization is the natural repair process for non-cavitated tooth lesions, [1] [2] in which calcium, phosphate and sometimes fluoride ions are deposited into crystal voids in demineralised enamel. Remineralization can contribute towards restoring strength ...
Failure to completely clean out the necrotic soft tissue of the pulp system may cause staining, and certain root canal materials (e.g., gutta percha and root canal sealer cements) can also. [1] Another possible factor is the lack of pulp pressure in dentinal tubules once the pulp is removed, leading to incorporation of dietary stains in dentin.
In dental enamel, fluorosis causes subsurface porosity or hypomineralizations, which extend toward the dentinal-enamel junction as the condition progresses and the affected teeth become more susceptible to staining. Due to diffusion of exogenous ions (e.g., iron and copper), stains develop into the increasingly and abnormally porous enamel. [7]
LeBlanc said he was surprised to find iron, as the metal is normally associated with the more complex teeth of mammals, such as beavers and rats, rather than reptiles, which tend to have simpler ...
Precautions include; teeth without existing stain, newly erupted teeth, tooth decalcification, hypo-calcification, hypoplasia, demineralization, rampant caries. [5] Areas with exposed root surfaces should also be avoided as well as, areas with tooth sensitivity and gingival inflammation.