1. When the doctor prepares abutment, the shoulder is not standard, which causes the edge of porcelain teeth to stimulate the gums and cause gingival inflammation;

2. The porcelain teeth in the processing factory are not made accurately. If the edge of porcelain crown is not tight, it will also cause gingival bleeding, which needs to be examined and treated in a regular dental clinic;

3. It may also be gingivitis caused by bacterial infection. This situation is also very common. Many people have poor periodontal condition and often bleed when brushing their teeth, which has nothing to do with porcelain teeth. If this is the case, you need to pay attention to personal oral hygiene, rinse your mouth frequently, floss your teeth thoroughly, and brush your teeth correctly with a healthy toothbrush to prevent and slow down the attachment of tartar, tartar and bacteria to your teeth.

4. A few people are affected by other systemic diseases, such as thrombocytopenia in blood. Be cautious in this situation.

I hope to clarify the cause and adjust or treat it as soon as possible. I wish you the best of health!