Color change of dental structure may be caused by a variety of factors, standing out the trauma and the materials used in endodontic treatments.
Trauma, even though it does not promote a coronary fracture, can affect the dental pulp, generating, for instance, internal bleeding and pulp necrosis, indicating an endodontic treatment immediately.
Endodontic materials may result in discoloration and pigmentation.
One way for interrupting or reverting the darkening process is dental whitening, also performed on devitalized teeth.