Since the early days of orthodontics the need for tooth extractions in certain orthodontic situations has been discussed.
In the early twentieth century, Angle favored non-extraction orthodontic treatment based on the concept of the occlusion line.
He believed it possible to correctly position all of the 32 teeth in the dental arches and, as a result, the adjacent tissues (tegument, bone and muscle) would adapt to this new position.
Grounded in this belief, he taught his students and treated numerous cases.
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One of Angle’s chief opponents was Calvin Case, who advocated orthodontic treatment with extraction in some cases.
He asserted that dental extractions should never be undertaken in order to facilitate orthodontic mechanics but rather to provide the best possible treatment for the patient.
Tweed, one of Angle’s brightest disciples faithfully followed his master’s recommendation to perform treatment without extractions.
Souce : Dental Press J Orthod
Authors : Antônio Carlos de Oliveira Ruellas / Ricardo Martins de Oliveira Ruellas / Fábio Lourenço Romano / Matheus Melo Pithon / Rogério Lacerda dos Santos