After inlaying roasts the porcelain tooth, the gum completely has not covered the tooth also a little slit to be possible to see the black thing! Has the matter?

• 您的位置：我也知道>医疗健康>五官科>镶完烤瓷牙后,牙龈没有完全覆盖牙齿还有点缝隙可以看见黑色东西!有没有事?