1) Intrinsic Stains
This means the stain occurs from within the tooth. This type of stain cannot be removed by brushing and flossing and sometimes bleaching may not be effective. Some causes of intrinsic staining are injury to the tooth, certain medications (such as tetracycline) taken during tooth formation stage or an excess fluoride ingested during the formation of teeth.
1) Intrinsic Stains
Intrinsic Teeth Stains
Before | After