Black Triangles Between Teeth: Why They Happen
Have you ever looked in the mirror and noticed small, dark, triangle-shaped gaps between your front teeth right at the gum line? These are commonly called black triangles (or open gingival embrasures in dental terms). They’re not just a cosmetic issue—they can make your smile look older or uneven and may trap food particles, leading […]
Black Stain on Teeth: Causes, Composition, and Its Surprising Link to Dental Caries
Black stain is characterized by a dark line or an incomplete coalescence of dark dots localized on the cervical third of the tooth. Over the past century, its etiology has been widely debated. Based on studies published between 2001 and 2014, the prevalence of black stain ranges from 2.4% to 18%, with no significant difference […]