This review evaluating the evidence to support the possibility that orthodontic tooth movements could induce pulp necrosis included 12 studies. While the findings indicate there is evidence that these treatments do not induce pulp necrosis it has low to very low quality.
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This review of the effect of orthodontic forces on the dental pulp identified only a limited number of small studies none of which were of high quality. Consequently there is insufficient scientific evidence of the effect of orthodontic forces on the dental pulp.
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