Dental experts remind people that orthodontic procedures sometimes require extractions, but not all orthodontists need extractions, it depends on the individual, about half of the patients need extractions. The main purpose of extractions is to have more space for teeth that are not in alignment due to crowding.

　　The specific purposes are categorised into the following three points:

　　(1) To use the extraction space to align crowded teeth. Patients with degree II-III crowding are more likely to have their teeth extracted.

　　(2) To use the extraction space to retract the front teeth, improve the protrusion of the dental arch, and improve the shape of the face. For example, some people have protruding lips, which will become less protruding and more beautiful after tooth extraction.

　　(3) Use the extraction gap to adjust the occlusal relationship of the posterior teeth, so that the cusp of the posterior teeth are staggered, the occlusal contact area is the largest, to achieve the best chewing efficiency.

　　So what are the hazards of tooth extraction?

　　(1) Alveolar osteitis caused by tooth extraction: inflammation of the alveolar bone after orthodontic tooth extraction usually occurs within 2-5 days after tooth extraction, manifested as severe pain at the extraction site.

　　(2) Complications after tooth extraction: These include prolonged bleeding from the wound after tooth extraction and swelling after tooth extraction. These symptoms usually disappear within a few days.

　　(3) Nerve damage from tooth extraction: there are usually two types of nerves damaged by orthodontic tooth extraction, one on the left side and one on the right side. Such damage from tooth extraction is rare and usually temporary, but some nerve damage from tooth extraction can be long lasting or even permanent, which requires consultation with your doctor before orthodontic tooth extraction.

　　There is no harm in having teeth extracted before orthodontic treatment, and the doctor will determine if and how many teeth need to be extracted based on the individual's situation, so don't panic even if you have to have four teeth extracted while undergoing orthodontic treatment. As long as you have the desire to be beautiful, it will be much easier after that. Love of beauty comes at a price.