Severe hemorrhage in a patient with dengue hemorrhagic fever after insertion of orthodontic mini-implants. A case report

The objective of this paper is to report a clinical case of a patient who after installing an orthodontic mini-implant returned to the dental office seven days later with a severe hemorrhage where it was inserted. Because of the severe character of the hemorrhage, the mini-implant was removed, local compression was performed, medication to control bleeding was given and some lab tests were requested. The patient returned in 24 hours with diagnosis of dengue hemorrhagic fever (DHF). The patient was referred to the specialized hematology service where the diagnosis was confirmed. Past the critical period, a new mini-implant was inserted to continue the orthodontic treatment. It can be concluded from this account that despite the mini-implants being devices of simple installation and easy removal, it is important that the patient's systemic conditions are optimal for their overall effectiveness. Keywords Dengue; Hemorrhage; Orthodontic Anchorage Procedures.

UTILIZAÇÃO DO MINI-IMPLANTE COMO ANCORAGEM PARA DISTALIZAÇÃO DE MOLAR SUPERIOR

RESUMOO uso dos mini-implantes como recurso de ancoragem para distalização de molar superior tem a finalidade de evitar a movimentação indesejável da unidade de reação, proporcionando uma série de vantagens quando comparados à aparelhos extrabucais ou intrabucais, aparelhos estes, que necessitam da colaboração dos pacientes e tem um comprometimento estético. Por isso, os mini-implantes têm sido cada vez mais associados aos diversos sistemas distalizadores, buscando uma ancoragem absoluta, facilitando e aprimorando os procedimentos de ancoragem ortodôntica, reduzindo o tempo e dando uma maior previsibilidade ao resultado do tratamento. A distalização dos molares superiores tem se mostrado uma excelente técnica para correção de classe II e III de Angle. O objetivo deste trabalho é realizar uma revisão de literatura, avaliando os métodos utilizados para se obter uma eficiente distalização de molar ancorados por mini-implantes.Palavras – chave: Ancoragem esquelética – Mini-implantes – Microparafuso ortodôntico ABSTRACT The use of miniscrews anchorage for distalization of maxillary molars is intended to prevent unwanted movement of the reaction unit, providing a series of advantages when compared to the extraoral or intraoral devices, appliances those which require the patients’ collaboration and have aesthetical problems. So the miniscrews have been increasingly associated with various distalization systems, seeking an absolute anchorage, facilitating and improving the orthodontic anchorage procedures, reducing treatment time and providing greater predictability to the treatment outcome. The maxillary molar distalization has proven to be an excellent technique for correction of class II and III malocclusions. The aim of this study is to review the literature, assessing the methods used to obtain an effective molar distalization anchored by miniscrews.Keywords: Skeletal anchorage – Mini-implants – Orthodontic miniscrews