Instalação virtual dos aparelhos: para que serve?

Abstract

As características anatômicas da maxila podem interferir diretamente na confecção dos aparelhos sobre mini- parafusos. Para solucionar esse problema, foi criada uma técnica chamada MARPE Guide. Essa técnica aumenta as chances de sucesso quando utilizamos a técnica MARPE (Miniscrew-Assisted Rapid Palatal Expander), visto que: por meio da sobreposição do arquivo da tomografia computadorizada ao arquivo do escaneamento intrabucal, conseguimos identificar os acidentes anatômicos e realizar mensurações de alta precisão para a escolha do sítio de instalação, tamanho dos miniparafusos e correto posicionamento espacial do torno expansor.

Surgical Digitally Guided Planning for the Mini-Screw Assisted Rapid Palatal Expansion (MARPE) and Suture Perforation: MARPE Guide

“…Moreover, the standardization of the patient's head position and evaluation of the tomography sections could not be faithfully reproduced in the oral cavity. This necessitated the creation of digital positioning guides [10][11][12][13]. In cases of severe transverse deficiency of the maxilla or asymmetry [22], devices such as the MARPE maxillary skeletal expansion (MARPE MSE) or MARPE SL cannot be indicated because the expander screw does not fit in the palate (Figure 25).…”

“…After suture analysis, the three-dimensional files (STL and DICOM, Figure 4) were superimposed [10][11][12][13][14]. As described in the literature [5], both files should be of good quality because they provide essential information, such as hard and soft tissue thickness, anatomical variations, and location and trajectory of the This procedure can be performed in any software that accepts the superimposition of the STL and CBCT files and also permits the importation of mini-implants and the MARPE expander screw-in STL format.…”

“…This technique, called MARPE Guide, consists of a three-dimensional digital placement, which comprises the positioning of the mini-implants specific for MARPE, as well as the expander screw itself. To overcome the shortcomings of the previously described planning techniques, a guide is generated that reproduces this digital placement [5,[10][11][12][13][14].…”