Evaluation and comparison of root resorption between tooth-borne and tooth-tissue borne rapid maxillary expansion appliances: A CBCT study.

CONCLUSIONS:   More resorption was observed in the Hyrax expander group. But it was not statistically significant. Repair was observed after 6 months of retention. Heavy RME forces affected premolars and molar similarly. PMID: 25993251 [PubMed - as supplied by publisher]
Source: The Angle Orthodontist - Category: Dentistry Authors: Tags: Angle Orthod Source Type: research