Questions: My dentist placed a filling but said food will be trapped between the teeth and recommends a crown or onlay/inlay. Why won’t a filling work?
Answer: Sometimes too much of a tooth is lost and it is very difficult/impossible to properly place a well sealed filling that won’t fail. Food being trapped irritates the gum/tooth and cause increase the risk for a cavity being formed on the teeth where the gap is. It can also cause bone loss due to the irritation which is called ‘food impaction’. A crown or only/inlay can be made outside of the mouth by a lab from an impression taken. They are then cemented in or glued to the tooth.