& nbsp, Porcelain teeth; & nbsp;& nbsp;& nbsp; Generally speaking, the color of porcelain teeth will not change after installation. However, if patients with porcelain teeth do not pay attention to oral hygiene, smoke, drink excessively, or consume coffee and other such foods, pigments may gradually seep into the porcelain layer of the porcelain teeth. & nbsp;& nbsp;& nbsp; Many patients with porcelain teeth have discovered that after having porcelain teeth for many years, the color difference between their porcelain teeth and natural teeth becomes increasingly apparent. Is there a way to remedy this situation? & nbsp;& nbsp;& nbsp; Based on some experience, porcelain teeth experts have provided the following suggestions: & nbsp;& nbsp;& nbsp, Department of Stomatology, Dongwu Hospital of Suzhou; The color of porcelain teeth is selected using a standard shade guide. Since most patients' natural teeth colors vary greatly and are not uniform, and due to differences in light exposure, there may be some discrepancies between the color of porcelain teeth and real teeth. Clinically, regional shade matching is used to minimize these differences as much as possible. If a significant color difference does occur, there may not be much that can be done to remedy it since porcelain teeth are almost impossible to remove and modify, and would need to be dismantled and redone. Additionally, if black lines appear at the tooth root area, it might also be necessary to remake the porcelain crown. & nbsp;& nbsp;& nbsp; If discoloration becomes severe enough to affect aesthetics, it is recommended to remove the porcelain teeth and remake them. In the future, try to pay more attention or adjust your dietary habits to slow down the occurrence of discoloration.