Stomatology ›› 2022, Vol. 42 ›› Issue (12): 1144-1148.doi: 10.13591/j.cnki.kqyx.2022.12.018

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Progress of research on alternate rapid maxillary expansions and constrictions

HU Wenjing, YU Fei, GONG Guoliang, ZOU Mingyuan, LIN Xinping   

  1. School of Stomatology, Zhejiang Chinese Medical University, Hangzhou 310053, China
  • Received:2022-03-14 Online:2022-12-28 Published:2022-12-28

Abstract: Alternate rapid maxillary expansions and constrictions (Alt-RAMEC) is a new method of expansion proposed by Liou in 2005, which expands sutures around maxilla more effectively and leads to greater amount of maxillary protraction. Compared with rapid maxillary expansion and facemask, it can obtain better skeletal effects and correct maxillary deficiency more efficiently. This paper reviews characteristics of the conventional Alt-RAMEC device, clinical outcomes, long-term stability, airway changes and periodontal complications in order to provide reference for promoting clinical application.

Key words: alternate rapid maxillary expansions and constrictions, maxillary protraction, skeletal Class Ⅲ malocclusion

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