Which one closes extraction spaces faster: en masse retraction or two-step retraction? A randomized prospective clinical trial.
CONCLUSIONS: TSR takes between 1.8 and 2.2 times longer than ER to close the extraction spaces and it took longer in males than females.
PMID: 31259616 [PubMed - as supplied by publisher]
Source: The Angle Orthodontist - Category: Dentistry Authors: Schneider PP, Kim KB, Monini ADC, Santos-Pinto AD, Gandini JĂșnior LG Tags: Angle Orthod Source Type: research
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