DESIGN AND DEVELOPMENT OF A PROTOTYPE FOR 3D SCANNING IN BIOMEDICAL APPLICATIONS

• DOI: https://doi.org/10.22533/at.ed.1594932415109

• Palavras-chave: 3D scanning, Dentistry, Dental molding, Intraoral scanner, Biomedical engineering

• Keywords: 3D scanning, Dentistry, Dental molding, Intraoral scanner, Biomedical engineering

• Abstract:

  In dentistry, a technique widely used for planning and/or dental procedures is molding. This consists of acquiring the negative of the molded arch in order to obtain a faithful plaster copy of the patient's oral cavity. However, this procedure causes discomfort for the patient and high costs for the dentist. There is a device on the market today that scans the jaws and replaces this conventional molding, but the cost of acquiring this equipment is still very high. In order to solve this problem, this study proposes the creation of an intraoral scanning device with efficiency and lower cost. To this end, a literature review was carried out on oral cavity impression techniques and digital scanning with the aim of creating a prototype 3D scanner. A prototype was built for scanning solids, in which the object rotates around its axis and the scanner remains fixed during image acquisition. The scans were also carried out, going through the stages of acquiring and cropping the images, processing the colors and applying algorithms to obtain coordinates in order to create point clouds. As a result of this work, we obtained a 3D point cloud of a solid, using easy-to-acquire technologies. We can conclude that scan molding is faithful and, in the long term, less expensive than conventional molding.