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      Riesgos asociados al uso de Expansión Rápida del Maxilar Translated title: Risks associated with the use of Maxillary Rapid Expansion

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          Abstract

          RESUMEN Introducción: Las anomalías dentomaxilares corresponden a un grupo de alteraciones que dificultan el desarrollo armónico de los maxilares, donde encontramos las anomalías transversales. La expansión rápida del maxilar (ERM) se utiliza como tratamiento de anomalías transversales, su objetivo es aumentar la distancia transversal por la separación de ambas hemiarcadas a nivel de la sutura palatina, utilizando un aparato expansor fijo y rígido. Los disyuntores más utilizados son los expansores Hass, Hyrax y de McNamara. Objetivo: El objetivo de la presente revisión es identificar los riesgos de la RME reportados en la literatura relacionados con disyuntores Hass, Hyrax y Mc Namara. Metodología: Se realizó una búsqueda en PubMed, Scielo, Science Direct, Trip Database y Google Acadèmico utilizando los tèrminos: “Rapid Maxillary Expansion”, “Risks”, “Child”, “Maxillary Expansion”, “RME”, “Palatal Expansion”, “Hyrax”, “Hass”. Se incluyeron estudios en inglès y español, sin límites en el año de publicación o tipo de estudio. Como criterios de exclusión consideramos la expansión quirúrgica, expansión lenta u otro tratamiento simultáneo durante la fase de expansión activa. Resultados: De los artículos encontrados, veinte cumplieron los criterios de inclusión. Dentro de los riesgos se encuentran: deglución accidental del dispositivo de activación del expansor, bacteremia transitoria, desviación del septum nasal, reabsorción radicular, compromiso periodontal, cambio posicional de los cóndilos, cambios faciales de tejido blando y cambios esqueletales. Conclusión: La ERM es un procedimiento ortopèdico eficaz, sus indicaciones en el tratamiento precoz han aumentado debido a resultados positivos. De acuerdo con la bibliografía encontrada los beneficios superan considerablemente a los efectos negativos.

          Translated abstract

          ABSTRACT Introduction: The dentomaxillary anomalies correspond to a group of alterations that hinder the harmonic development of the jaws, where we find the transversal anomalies. Rapid Maxillary Expansion (RME) is used as a treatment for transverse anomalies, its objective is to increase the transversal distance by separating both hemiarchies at the level of the palatal suture, using a fixed and rigid expander. The most used are the Hass, Hyrax and McNamara expanders. Objective: The objective of this review is to identify the EMR risks reported in the literature related to Hass, Hyrax and Mc Namara expander. Methodology: A search was made in PubMed, Scielo, Science Direct, Trip Database and Google Scholar using the terms: “Rapid Maxillary Expansion”, “Risks”, “Child”, “Maxillary Expansion”, “RME”, “Palatal Expansion”, “Hyrax”, “Hass”. Studies in English and Spanish were included, without limits in the year of publication or type of study. As exclusion criteria, we consider surgical expansion, slow expansion or other simultaneous treatment during the active expansion phase. Results: Of the articles found, twenty met the inclusion criteria. Among the risks are: accidental swallowing of the expander activation device, transient bacteremia, deviation of the nasal septum, root resorption, periodontal involvement, positional change of the condyles, soft tissue facial changes and skeletal changes. Conclusion: RME is an effective orthopedic procedure, its indications in early treatment have increased due to positive results. According to the bibliography found, the benefits considerably outweigh the negative effects.

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          Factors affecting buccal bone changes of maxillary posterior teeth after rapid maxillary expansion.

          The purpose of this study was to use cone-beam computed tomography (CBCT) images to determine the factors that might affect buccal bone changes of maxillary posterior teeth after rapid maxillary expansion (RME). Thirty consecutive patients (17 boys, 13 girls; mean age, 13.8 +/- 1.7 years) who required RME as part of their orthodontic treatment and had the pre-RME (T1) and post-RME (T2) CBCT images available were included in the study. The T1 and T2 measurements of interdental distance, interdental angle (IA), buccal bone thickness (BBT), and buccal marginal bone levels (BMBL) of the first premolar (P1), the second premolar (P2), and the first molar (M1) were compared with the Friedman and the Wilcoxon signed rank tests. To determine which variables were associated with the changes in IA, BBT, and BMBL, the Spearman rank correlation analysis was performed (alpha = .05). The results suggest that buccal crown tipping, and reduction of BBT and BMBL of the maxillary posterior teeth are the expected immediate effects of RME. There were no significant differences in dental expansion among P1, P2, and M1 (P >.05). P2 had clinically more buccal crown tipping (P = .116) but statistically less reduction in BBT and BMBL (P .05).
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            The role of rapid maxillary expansion in the promotion of oral and general health

            Rapid maxillary expansion (RME) is an effective orthopedic procedure that can be used to address problems concerned with the growth of the midface. This procedure also may produce positive side effects on the general health of the patient. The aim of the present consensus paper was to identify and evaluate studies on the changes in airway dimensions and muscular function produced by RME in growing patients. A total of 331 references were retrieved from a database search (PubMed). The widening of the nasal cavity base after midpalatal suture opening in growing patients allows the reduction in nasal airway resistance with an improvement of the respiratory pattern. The effects of RME on the upper airway, however, have been described as limited and local, and these effects become diminished farther down the airway, possibly as a result of soft-tissue adaptation. Moreover, limited information is available about the long-term stability of the airway changes produced by RME. Several studies have shown that maxillary constriction may play a role in the etiology of more severe breathing disorders such as obstructive sleep apnea (OSA) in growing subjects. Early orthodontic treatment with RME is able to reduce the symptoms of OSA and improve polysomnographic variables. Finally, early orthopedic treatment with RME also is beneficial to avoid the development of facial skeletal asymmetry resulting from functional crossbites that otherwise may lead to functional and structural disorders of the stomatognathic system later in life.
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              Alveolar bone changes after rapid maxillary expansion with tooth-born appliances: a systematic review

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                Author and article information

                Journal
                odonto
                Avances en Odontoestomatología
                Av Odontoestomatol
                Ediciones Avances, S.L. (Madrid, Madrid, Spain )
                0213-1285
                2340-3152
                April 2020
                : 36
                : 1
                : 21-26
                Affiliations
                [2] Valvidia Los Ríos orgnameUniversidad Austral de Chile orgdiv1Facultad de Odontología orgdiv2Instituto de Odontoestomatología Chile
                [5] Concepción Bío-Bío orgnameUniversidad de Concepción orgdiv1Facultad de Odontología Chile
                [3] Valparaíso Valparaíso orgnameUniversidad de Valparaíso Chile
                [4] Lebu orgnameClínica Leufu Chile
                [1] Concepción Bío-Bío orgnameUniversidad de Concepción orgdiv1Facultad de Odontología Chile
                Article
                S0213-12852020000100003 S0213-1285(20)03600100003
                01a77f1d-6f73-48f4-8718-92be7cab60d8

                This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 International License.

                History
                : 05 September 2019
                : 08 August 2019
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 20, Pages: 6
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                SciELO Spain

                Categories
                Artículos

                Rapid Maxillary Expansion,Risks,Expansion
                Rapid Maxillary Expansion, Risks, Expansion

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