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Shahrooz Yazdani, DDS, notes that excessive whitening can impact the enamel on your teeth, the layer that defends your smile against physical, thermal and chemical damage. Balance is key! "Tooth ...
Brighten up your smile in days or weeks with effective at-home teeth whitening options.
This brand’s whitening toothpaste is an advanced formula, but while it’s tough on stains, it’s gentle on teeth as it works to re-strengthen weakened enamel.
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 ]
The white opaque areas in the enamel of the teeth are more extensive but do involve as much as 50% of the tooth. Moderate: 4: All enamel surfaces of the teeth are affected and surfaces subject to attrition show wear. Brown stain is frequently a disfiguring feature Severe: 5: All enamel surfaces are affected and hypoplasia is so marked that the ...
The enamel on primary teeth has a more opaque crystalline form and thus appears whiter than on permanent teeth. The large amount of mineral in enamel accounts not only for its strength but also for its brittleness. [6] Tooth enamel ranks 5 on Mohs hardness scale (between steel and titanium) and has a Young's modulus of 83 GPa. [4]