Analysis of CAD-CAM technology in the manufacture of single-unit implant-supported prostheses and the effect of the simulation of chewing on the adaptation and in the presence of microorganisms

• Grant number: 18/13179-2
• Support Opportunities: Scholarships in Brazil - Doctorate
• Start date: January 01, 2019
• End date: February 28, 2022
• Field of knowledge: Health Sciences - Dentistry
• Principal Investigator: Eduardo Piza Pellizzer
• Grantee: Jéssica Marcela de Luna Gomes
• Host Institution: Faculdade de Odontologia (FOA). Universidade Estadual Paulista (UNESP). Campus de Araçatuba. Araçatuba , SP, Brazil

Abstract

The aim of this study is to evaluate different techniques for the preparation of single-unit implant-prostheses on external hexagon implants for marginal (vertical and horizontal) and internal misfit before and after the mastication simulation test and in the presence of oral biofilm. For this, seventy specimens will be made of metal (CoCr), divided into: G1) UCLA with metal strap (CoCr); G2) UCLA calcinable; G3) Milling coping (intraoral scanning); G4) Milling coping (Extraoral scanning); G5) TiBase + Coping milling (intraoral scanning); G6) TiBase + Coping milling (Extraoral scanning); G7) Coping milling in wax (CAD-CAM) + casting in CoCr. All specimens will be submitted to mechanical cycling, simulating the use of the prosthesis for five years. Torque and the marginal and internal misfit will be measured before and after cycling. As will be evaluated biofilm count present at the interface between the prosthesis and the implant before and after mechanical cycling. The data of the measurements for each type of analysis will be submitted to SigmaPlot (SigmaPlot, San Jose, CA, USA) and analyzed in relation to the normal distribution, and later the data will be submitted to more pertinent statistical analysis according to the results. (AU)

Academic Publications

(References retrieved automatically from State of São Paulo Research Institutions)

GOMES, Jéssica Marcela de Luna. Analysis of CAD-CAM technology in the manufacture of implant-supported single prostheses and its effect on adaptation under mastication simulation and in the presence of microorganisms.. 2022. Doctoral Thesis - Universidade Estadual Paulista (Unesp). Faculdade de Odontologia. Araçatuba Araçatuba.