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Revista Médica Electrónica
versión On-line ISSN 1684-1824
Resumen
CALVO PEREZ, Damarys et al. Maxillar disjunction. Rev.Med.Electrón. [online]. 2018, vol.40, n.1, pp. 192-199. ISSN 1684-1824.
ABSTRACT The rapid maxillary disjunction is an orthopedic procedure in which an expansion screw acting upon the medial palatal suture, is activated every day and causes its aperture in a short period of time, accompanied by an excessive symptomatology in the patients. The aim of this paper is showing the benefits provided by the maxillary palatal disjunction when activated only once a day (1/4 turn). A Hyrax type screw was used in a 14 years-old male patient who had an Angle´s Class III malocclusion (Syndromic Class I) together with a transversal superior micrognathism larger than 4 mm and a posterior bilateral cross bite with a Monzon´s curve indicating maxillary endognathia. The results showed the expansion of the medial palatal suture in seven weeks and as a consequence the expansion of the dental arch, the alleviation of dental crowding, and the correction of the anterior and posterior bilateral cross bite and what is most important, the distress caused to the patient was minimal.
Palabras clave : disjunction; suture; Hyrax; activation; minimal symptomatology.