Cone-beam computed tomography evaluation of alveolar bone and root changes after clear aligner therapy with different extraction protocols: Balancing tissue loss, tooth control, and treatment alternatives.

In short, the index values in the mandibular labial-lingual direction of TPE and NE showed a trend similar to that in the maxilla.

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Overall, in the labial-lingual direction, the height and thickness of the labial alveolar bone in patients with TPE showed an increasing trend compared to that in patients with NE, whereas the height and thickness of the lingual alveolar bone showed a decreasing trend.

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