Ramírez-Valencia MS, Nieto-Aguilar R, Tavera-Hernández LF

Language: Spanish
References: 9
Page: 70-73
PDF size: 405.76 Kb.

ABSTRACT

Introduction: Rapid maxillary expansion (RME) is used to treat transverse maxillary deficiencies. The incorporation of anchorages with mini implants, make it an assisted maxillary disjunction. The maxillary skeletal expander has been shown to lead to more parallel expansion in the anteroposterior dimension; but few studies have quantified the amount of expansion, degree of parallelism, and none have focused on non-growth. Objective: To promote and quantify maxillary expansion with the disarticulation of the midpalatal suture. Case: 23-year-old patient with bilateral posterior crossbite, maxillary transverse deficiency and mouth breather. An assisted circuit breaker with mini implants is placed. Discussion: The midpalatal suture was disarticulated and the bite was uncrossed in the left quadrant. It should be considered that disjunction is not achieved symmetrically in all cases, due to the presence of the rest of the circummaxillary sutures.

REFERENCES

1. Aguilar-Salas M, Benavides-Febres E. Ex-pansión rápida maxilar asistida con microim-plantes. Rev Esp de Cir Oral Max. 2019; 41(1), 44-46.

2. Betts NJ, Vanarsdall RL, Barber HD, Higgins-Barber K, Fonseca RJ. Diagnosis and treatment of transverse maxillary defi-ciency. Int J Adult Orthodon Orthognath Surg. 1995;10(2):75–96.

3. Ramires T, Maia RA, Barone JR. Nasal ca-vity changes and the respiratory standard af-ter maxillary expansion. Br J Otorhinolaryn-gol. 2008;74(5):763–9.

4. Gurel HG, Memili B, Erkan M, Sukurica Y. Long-term effects of rapid maxillary expan-sion followed by fixed appliances. Angle Orthod. 2010;80(1):5–9.

5. Paredes N, Colak O, Sfogliano L. Differential assessment of skeletal, alveolar, and dental components induced by microimplant-sup-ported midfacial skeletal expander (MSE), utilizing novel angular measurements from the fulcrum. Prog Orthod. 2020;21:18.

6. Elkenawy I, Fijany L, Colak O, Paredes NA, Gargoum A, Abedini S, et al. An assessment of the magnitude, parallelism, and asymme-try of micro-implant assisted rapid maxillary expansion in non-growing patients. Prog Orthod. 2020; 21(1), 42.

7. Cantarella D, Dominguez-Mompell R, Mallya SM, Moschik C, Pan HC, Miller J, et al. Changes in the midpalatal and pterygopala-tine sutures induced by micro-implant- sup-ported skeletal expander, analyzed with a novel 3D method based on CBCT imaging. Prog Orthod. 2017;18(1):34.

8. Colak O, Paredes NA, Elkenawy I. Tomo-graphic assessment of palatal suture ope-ning pattern and pterygopalatine suture dis-articulation in the axial plane after midfacial skeletal expansion. Prog Orthod. 2020;21:21.

9. Spillane LM, McNamara JA Jr. Maxillary adaptation to expansion in the mixed denti-tion. Semin Orthod. 1995;1(3):176–87.