1, periodontitis
It needs subgingival curettage to remove it. This kind of curettage is no more painful than tooth washing. Anesthetics are also needed, which seriously stimulates granulation tissue lesions. If curettage is ineffective, periodontal flap surgery is needed to remove it decisively.
2. Metal porcelain teeth
If the gums are not inflamed, the metal ions will gradually fade away until they disappear. If the gums have been bleeding, it is necessary to change all-ceramic teeth, which are usually installed on the upper edge of the gums and will not stimulate the gums.
First of all, there is nothing wrong with all-ceramic teeth. Let's rule out this possibility first, which means that the edge of the crown is not tightly combined, which leads to the gap for the residue to take advantage of, leading to the internal abutment caries.
In fact, this kind of chewing gum is not black, but it looks black through the chewing gum. In fact, the teeth are corroded. It is necessary to take out the crown to repair the internal teeth, then fill the teeth to avoid secondary caries, and finally install the porcelain teeth.