A tooth that is rotten to the flesh can be filled if the tooth can be retained. If the tooth is rotted to the flesh, it may cause damage to the tooth or gums, and should be examined by a professional dentist through precision instruments to clarify the extent of the damage to the tooth. If the tooth is mildly damaged, the dentist will remove the clean rotten part of the tooth, keep the remaining part, and then give it a filling treatment or root canal treatment. If the tooth is severely damaged and no longer worth preserving, you will have to cooperate with a professional dentist to extract the entire broken tooth and then install dentures. Therefore, once you find a tooth rotten to the flesh, it is recommended to go to the dental department of a regular hospital for a detailed examination of the damage to the tooth, and then determine the treatment plan in conjunction with the professional dentist’s treatment advice.