Tooth whitening

1: crown, 2: root, 3: enamel, 4: dentin and dentin tubules, 5: pulp chamber, 6: blood vessels and nerve within root canal, 7: periodontal ligament, 8: apex and periapical region, 9: alveolar bone

Internal resorption of the left maxillary lateral incisor (right in photograph), giving rise to the appearance termed

VITA classical A1-D4 shade guide arranged according to value

Tooth whitening (termed tooth bleaching when utilizing bleach), is either restoration of natural tooth shade or whitening beyond natural tooth shade, depending on the definition used.

Restoration of the underlying, natural tooth shade is possible by simply removing surface (extrinsic) stains (e.g. from tea, coffee, red wine and tobacco) and calculus (tartar). This is achieved by having the teeth cleaned by a dental professional (commonly termed "scale and polish", see debridement and polishing), or at home by various oral hygiene methods. Calculus is difficult to remove without a professional clean.

单词	Tooth bleaching
释义	Tooth bleaching 英语百科 Tooth whitening Tooth whitening (termed tooth bleaching when utilizing bleach), is either restoration of natural tooth shade or whitening beyond natural tooth shade, depending on the definition used. Restoration of the underlying, natural tooth shade is possible by simply removing surface (extrinsic) stains (e.g. from tea, coffee, red wine and tobacco) and calculus (tartar). This is achieved by having the teeth cleaned by a dental professional (commonly termed "scale and polish", see debridement and polishing), or at home by various oral hygiene methods. Calculus is difficult to remove without a professional clean.
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Tooth bleaching

Tooth whitening