If the tooth is not filled, it will cause certain damage, as follows: 1. The bite function assumed by the big tooth after extraction is also missing, so it will not chew sufficiently when eating and chewing, which will greatly increase the burden on the digestive tract and intestines, and may lead to gastrointestinal diseases. 2. 3. If the missing tooth is not filled, it is difficult to maintain oral hygiene in this area, and a large amount of food residue may be hidden in the gap and cause other periodontal diseases.