intrinsic staining

in·trin·sic stain·ing

(in-trinzik stāning)
Discoloration of internal tooth structure due to factors derived from within the body; an effect of substances such as the antibiotic tetracycline. Such stains are not usually removable but may be treated through cosmetic dental procedures.
Medical Dictionary for the Dental Professions © Farlex 2012
References in periodicals archive ?
Other factors may be dental materials--some fillings, such as amalgam, can cause intrinsic staining of grey-black color--and aging.
The intra-oral examination when the child reported at 17 months showed green intrinsic staining of all the erupted primary teeth (chlorodontia).
Harder/deeper extrinsic discoloration and intrinsic staining require various bleaching techniques.
Conditions which cause intrinsic staining of teeth are:
Aesthetics is playing an increasingly large part during in-office discussions between the patient and dental professionals.8 Some patients may not need tooth whitening products that are effective against intrinsic staining, but rather need an ongoing treatment to inhibit new extrinsic stain formation between office visits.
Intrinsic staining is a bit more complicated, because the staining is on the inside of the tooth, or where the dentin is exposed, and does not usually go away.
To permanently remove intrinsic staining, a crown or veneers can be suggested by the dentist, as it provides a cosmetic option for the discoloration.
Other factors may be dental materials-some fillings, such as amalgam, can cause intrinsic staining of grey-black color--and aging.