The black stains in the grooves of the big teeth cannot be cleaned by oneself, and the black stains in the grooves of the occlusal surfaces of the big teeth, i.e., molars, may be pigmentation or caries, and can be treated by scaling, filling and restorative treatments.
1. Cleaning: If the black stains are manifested by pigmentation, they can be removed by cleaning and polishing.
2. Filling and restorative treatment: If the black stain is caused by caries, it is necessary to remove the decayed and stained tooth tissue, prepare a cavity, and fill the cavity with resin material similar to the color of the tooth, so that the occlusal surface of the molar can be restored as it was before.
If black staining is visible in the occlusal fossa of a molar and is accompanied by other symptoms, such as pain from hot or cold stimulation of the teeth, spontaneous pain, and night pain, it is recommended to go to the hospital for consultation in a timely manner.