Confecção de pinos núcleo e a tecnologia CAD/CAM: uma revisão sistemática da literatura

Abstract

The present study aims, based on the literature, to present the use of the CAD/CAM system in the manufacture of personalized pins, seeking to know the materials used, the advantages and limitations of this technique. It also aims to compare the different techniques of making pins (traditional versus digital) to observe the changes that occur in the clinical and laboratory stages. For this systematic review, in order to seek relevant results regarding the use of pins in the CAD/CAM system, the following databases were consulted: PubMed and Bireme. In order to clarify other points of the subject for inserting scientific references, articles from the Digital Scrib and the use of a book library were also used. The selection had as inclusion criteria the search for scientific articles published from 2000 to 2020 that could answer the objectives of this study. The CAD/CAM technology is already present in dentistry and adds great benefits, especially when it comes to rehabilitation within the area of dental prostheses. The system provides quality, safety of use, obtaining and storing data in real time, replacing laboratory steps and with that the working time is reduced in relation to the traditional casting method. However, there are limitations to the scanner reading in the root canal, having to opt, in some cases, for a conventional impression. It can be concluded that the custom pins via CAD/CAM system are well adapted to the root canal. It was possible to verify, according to the experimental studies, that the fiberglass pins integrated to the CAD/CAM system, present repairable flaws and are aesthetically pleasing. The quality of the materials in this system has been shown to be superior compared to conventional pins, however, the investment in this system is considerably high and requires training of the team to handle the program. There is also a need for more information in the literature on the manufacture of pins manufactured using CAD/CAM technology. [resumo fornecido pelo autor]