Vertical Control in Molar Distalization by Clear Aligners: A Systematic Review and Meta-Analysis.

While a definite trend cannot be determined from the range of reported changes ( Table 5 ), a meta-analysis using a random-effects model overall revealed no vertical position change of the maxillary first ( Figure 3 ) and second molars ( Figure 4 ).

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For both post-distalization and post-treatment records, the included studies demonstrate an overall trend of an increase in the mandibular plane angle.

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