It is the removal of teeth from dental alveolus in alveolar bone. Permanent teeth are supposed to be there for a lifetime but sometimes due to contingencies they may have to be removed. If you are taking orthodontic treatment, the dentist may remove a tooth to align the rest of them. If there is an infection and it cannot be cured with root canal treatment, to prevent the infection from spreading, your tooth can be removed. If you have any periodontal disease, and have resulted in loosening of teeth, the dentist may choose to remove the tooth. There are a lot of reasons for tooth extraction. The process needs to be done very carefully by an expert dentist. You can plan a trip and visit as a dental tourist in any country where the charges are low.