During the last century orthodontic treatment philosophies changed continuously. The necessity to extract teeth in order to correct a lack of space has many times been the subject of discussion. In fact there exists several techniques which make it possible to avoid extractions in many cases. A number of criteria which influence the decision to extract or not, as well as some techniques to regain space in upper and lower arch are discussed.
Bousaba, S., Delatte, M., & De Clerck, H. (1995). L’extraction en orthodontie: quand et pourquoi? Revue belge de médecine dentaire. Belgisch tijdschrift voor tandheelkunde, 50(2), 53-65. https://hdl.handle.net/2078.5/134705 (Original work published 1995)