‘Black triangles between your teeth are not inherently dangerous but may be associated with oral health concerns, like gum disease or gum recession,’ says Dr Abdul. ‘They are not necessarily ...

Black staining on your teeth can be a serious concern and may force people to change up their oral hygiene regime. A dentist has warned that while black triangles between your teeth aren't ...

One day, office worker A found a hole in the shape of a triangle in the gum space between his front teeth. The black hole ...