Turkish Journal of Orthodontics
Original Article
Comparison of the Changes Following Two Treatment Approaches: Rapid Maxillary Expansion Versus Alternate Rapid Maxillary Expansion and Constriction

Comparison of the Changes Following Two Treatment Approaches: Rapid Maxillary Expansion Versus Alternate Rapid Maxillary Expansion and Constriction

1.

Department of Orthodontics, Gaziosmanpasa University School of Dentistry, Tokat, Turkey

2.

Private Practice, Tokat, Turkey

Turk J Orthod 2020; 33: 1-7
DOI: 10.5152/TurkJOrthod.2020.19023
Keywords : RME, Alt-RAMEC, Class III
Read: 287 Downloads: 131 Published: 14 January 2020

Objective: The aim of the present study was to evaluate the hard and soft tissue changes following rapid maxillary expansion (RME) and alternate rapid maxillary expansions and constrictions (Alt-RAMEC) therapies.

Methods: A total of 54 patients who needed maxillary expansion or Alt-RAMEC procedure were recruited and divided into two groups (27 subjects in the RME group and 27 subjects in the Alt-RAMEC group). Expansion screw was activated to 0.5 mm/day (2 turns/day) in the RME group. An approximately 11 mm expansion was achieved. In the Alt-RAMEC group, the screw was activated to 1 mm/day (4 turns/day) during the 4-weekly sequence. In the first and third weeks, the screw was opened; in the second and fourth weeks, the screw was closed. Cephalometric tracing and analyzing were done with the aid of digital software. Lateral cephalometric radiographs were obtained before (T0) and after (T1) RME and Alt-RAMEC applications.

Results: In the RME group, the maxilla moved forward and downward. Upper incisor retrusion was observed according to the reference planes. In addition, the tip of the nose moved forward, and the upper lip moved downward. In the Alt-RAMEC group, the nasolabial angle became more obtuse, and the stomion superius moved backward and downward.

Conclusion: RME therapy resulted in skeletal and dental changes in the maxilla and related structures, favoring a contribution to solving Class III problems. No remarkable changes were recorded in the Alt-RAMEC group.

Cite this article as: Çelebi F, Çelikdelen M. Comparison of the Changes Following Two Treatment Approaches: Rapid Maxillary Expansion Versus Alternate Rapid Maxillary Expansion and Constriction. Turk J Orthod 2020;  33(1): 1-7.

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