Normal teeth have gaps between them, but if black tartar or pigmentation is present between the teeth, it is recommended to go to the hospital for periodontal treatment to remove it.
Black gaps exist between teeth under normal circumstances, and flossing is generally used to gently remove soft tartar on the neighboring surfaces through the adjacent surfaces of the teeth. If there is abnormal tartar or pigmentation attached through the adjacent surfaces of the teeth upon examination, and it cannot be removed by itself, it is necessary to go to the hospital for periodontal treatment to remove the attachment.
If after examination of the teeth gap obvious or distant visible obvious black triangle, mostly due to gingival papilla recession caused by the removal of external stimuli, you can consider the membrane gum surgery, restore the fullness of the gingival papilla.
Teeth in the middle of the black gap cleaning generally use dental floss or interdental gap brush for cleaning, it is recommended that regular follow-up in the hospital, found that the problem is dealt with in a timely manner.