Abstract: A monolithic dental implant is provided made from a material or materials having a elasticity moduli less than approximately 4 Msi. The materials can be either a polymer or a composite material having a polymer matrix and a fiber- or particulate-reinforced second phase. When subject to occlusive forces, the monolithic dental implant provides improved lateral transmission of the forces, resulting in a reduction in bone resorption. Additionally, because the dental implant is monolithic, it is not subject to the problems associated with bacteria collection and abrasive wear common to multi-component dental implants.

Abstract: An ultrasonic endodontic tip is provided having an elastic modulus of less than 8 Msi. The low-modulus of the material provides the ultrasonic endodontic tip the ability to navigate a curved tooth canal during a root canal procedure and controllably remove the dentine around canal without excessively enlarging the canal. The tip can include an abrasive on at least a portion of the working surface of the tip.