Can composite resin be used to fix my dental crowns? (Photo)

Hello. The gaps between cracked crown margins and gingiva do not seem negligibly small. Composite resin may help for a short time period but it does not adhere with crown surface. It only bonds onto a limited tooth surface which may cause fall of those composite filling materials. Crown renewal should br considered.

It is very hard to place the composite on metal. However, you do not need any restoration on it. It won't cause any problems at this time, and furthermore, you do not need to change the crowns.