Black triangles between the teeth, also known as gingival embrasures, refer to the appearance of triangular shaped voids between the teeth. These triangles can be caused by a variety of factors such as periodontal disease, misaligned teeth, and gingival recessions.
It is sometimes considered normal for some people to have small black triangles between their teeth, as it is a natural part of the human anatomy. The size and shape of the teeth, as well as the position of the gums and the amount of interdental papilla (the small, triangular piece of tissue located between the teeth) can all play a role in the development of black triangles.
However, in some cases, black triangles can become enlarged and more noticeable due to certain factors such as periodontal disease, which can cause the gums to recede and the interdental papilla to shrink. Misaligned teeth can also contribute to the formation of black triangles, as the teeth may not be in proper alignment, leaving larger spaces between them.
Another cause of black triangles is improper dental hygiene. Lack of brushing and flossing will lead to gum disease that will eat away at the soft gum tissue and lead to gaps between the teeth. On the other hand, over-brushing and flossing too aggressively can also result in black triangles. Putting too much force into cleaning your teeth can damage the gums, causing the gums to recede.
When this occurs, black triangles can form
Gingival recessions can also cause the appearance of black triangles. This is when the gum tissue pulls away from the tooth surface, exposing the root and making the black triangle more noticeable.
It is important to note that the appearance of black triangles can be a sign of periodontal disease or gingival recessions, which are both serious oral health issues that require proper diagnosis and treatment. If the black triangles are caused by these conditions, it is not considered normal and should be addressed by a dental professional.
Whether the black triangles are naturally occuring (such as due to aging) a result of disease, or self-inflicted (by aggressive cleaning), they should be examined by a dentist. Not only are they cosmetically undesirable, the gaps provide an ideal space for the bacteria that makes up plaque and tartar to multiply. Oftentimes this is the beginning of periodontal disease and the best way to prevent it is to eliminate the safe harbor for the bacteria.
In conclusion, black triangles between the teeth can be considered normal if they are a natural part of the human anatomy and not caused by any underlying oral health issues. However, if the black triangles are caused by periodontal disease, misaligned teeth or gingival recessions, it is not considered normal and should be addressed by a dental professional. It is important to see a dentist for regular check-ups to detect any potential oral health issues and to ensure proper oral hygiene.