Biomechanical study of prosthetic interfaces: a literature review

The implantology has been improved to enhance its biological and mechanical characteristics. However, the big challenge now is to offer rehabilitation treatment aesthetic, durable and enabling maintenance of surrounding structures such as bone and mucosa, where this balance depends on several factors among which the type of prosthetic interface. The first implants were developed by superimposing external hexagonal interface, however, several reports have described clinical complications that resulted in loosening of screws and even fractures implants and prosthetic components. To reduce these failures were developed mechanicals connections internal fitting, being hexagonal, triangular, octagonal or conical. With the advent and greater choice of interfaces for prosthetic rehabilitation planning it is necessary to better knowledge about their biomechanical characteristics and longevity.