Evaluation of bone wear after explantation with 2 different osteotomy techniques.

• Grant number: 23/18080-2
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Start date: March 01, 2024
• End date: February 28, 2025
• Field of knowledge: Health Sciences - Dentistry - Oral and Maxillofacial Surgery
• Principal Investigator: Eduardo Sanches Gonçales
• Grantee: João Victor de Paula Leite Coelho
• Host Institution: Faculdade de Odontologia de Bauru (FOB). Universidade de São Paulo (USP). Bauru , SP, Brazil

Abstract

The treatment of total and/or partial edentulism with bone-integrated implants has been very effective in restoring oral anatomy and function, benefiting not only the person as a whole, but also the teeth adjacent to the implant, by facilitating their maintenance, avoiding caries, endodontic and periodontal problems. However, despite these benefits, during the surgical procedure and after it, there may be complications, which often lead to the removal of the implant. In this context, the inadequate positioning of the implant is one of the main causes of explantation (removal of the integrated bone implant), which can be performed by different methods, such as the "unscrewing" of the implant through the use of retrievers, or the performance of osteotomies, by means of a trephine drill or conical trunk drill³, where the amount of healthy bone removed around the implant is the amount of healthy bone removed around the implant. a concern. Objective: To verify the amount of bone wear in both osteotomy techniques (trephine drill and conical trunk drill) and to compare the rate of bone loss when implant removal between osteotomy methods. Methodology: Insertion of 2 dental implants (RNTL4.1x8mm) will be performed in 10 mandibles without mucosal simulation and, immediately after, explantation will be performed with trephine drill and conical trunk drill. The mandibles will then be computed tomography, and linear measurements of the size of the bone defect created for expantation will be performed. The data obtained for both types of osteotomy will be tabulated and statistically analyzed.