Accuracy of molding techniques for angled jaw implants using trays and multifunctional guide

• Grant number: 14/24591-0
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Start date: June 01, 2015
• End date: May 31, 2016
• Field of knowledge: Health Sciences - Dentistry
• Principal Investigator: Francisco de Assis Mollo Júnior
• Grantee: Wiliam Bonadio dos Santos
• Host Institution: Faculdade de Odontologia (FOAr). Universidade Estadual Paulista (UNESP). Campus de Araraquara. Araraquara , SP, Brazil

Abstract

The use of angulated implants in the maxilla, located near the anterior wall of the maxillary sinus, avoids grafting of the maxillary sinus surgeries, bringing the additional advantages of a better distribution of implants in unfavorable cases, in addition to increasing the length and strength of the prosthesis. The liability settlement is one of the most important prerequisites in oral rehabilitation on implants with immediate loading and maintenance of osseointegration. Due to the importance of obtaining passivity in the success of prosthetic rehabilitation on implants, and because of non-observance of consensus on the techniques of molding, this study aims to analyze "in vitro" the accuracy of the technique of molding with square transfer copings joined together with metal and Pattern resin and uniting only by Pattern resin prosthetic rehabilitation on angled implants installed in an anatomical model of edentulous jaw metal prototyped using multifunctional guide and trays. Variables in this study are the types of instruments used as tray: prototyped multifunctional guide, metal and plastic trays. After obtaining the molds (Express " XT 3M / ESPE), they will be cast with type IV (Fuji-Rock EP) plaster tooling under vacuum. A metallic structure will be made on the metal matrix, and then screwed in the obtained models. Measurements of the slots will be made by two forms of analysis: a program (Leica QWin) to receive images from a video camera coupled to a Leica (100X), magnifying glass and also by analyzing 3D than will compare the models obtained with metal matrix evaluating the images generated by the scanner contact (MDX-40, Roland, Center for Information Technology - CTI, Campinas, SP, Brazil). Nevertheless, it is hoped to understand the behavior of the means used to accomplish the molding metallic implant prostheses in the maxilla anatomical model.