垂直位埋伏阻生上颌中切牙正畸治疗牙根发育的研究

Abstract

Abstract: Objective To discuss the effect of orthodontic treatment on the root development of vertically impacted maxillary incisors. Methods Twenty-four patients with unilaterally vertically impacted maxillary central incisors were selected. The contralateral tooth with the same name was used as the control. Cone-beam CT (CBCT) was taken before and after treatment．Dolphin 11.0 was used to measure the root length before and after the treatment．Results The root lengths of impacted teeth after the treatment (9.79±1.57 mm) were significantly larger than those before treatment (7.50±1.29 mm) (P<0.001). The root lengths of the impacted teeth were significantly smaller than those of the control teeth before and after treatment (P<0.001).Conclusion Orthodontic traction can promote the further root development of the vertically impacted maxillary incisors, but the root length still cannot reach the normal level after treatment.

CLC Number:

R783.5

References 18

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Study of the vertically impacted maxillary incisors’ root development during orthodontic traction

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