Cats may need to have all their teeth extracted in the following situations:
Severe dental diseases: Cats may suffer from severe periodontal disease or advanced gingivitis, which cause serious damage to teeth that cannot be saved. Periodontal disease damages the bone and soft tissue around the teeth, and if not treated in time, it can lead to tooth loss or cessation of tooth growth.

Dental malformations or other morphological abnormalities: A cat's teeth may have malformations or other morphological abnormalities, which can prevent the cat from eating normally or affect its oral health. Malignant teeth refer to abnormal tooth structure that may lead to malignant transformation of the teeth, posing a threat to the cat's health.
Incurable oral diseases: Cats may be infected with diseases such as stomatitis or calicivirus, which cannot be cured by other treatments and therefore require tooth extraction.