Implant Macrodesigns And It’s Effect On Crestal Bone Loss: A Report Of Two Cases

Abstract

Implant is a prosthetically driven surgical treatment modality which replaces the missing tooth.

Cylindrical implants which were popular earlier resulted in loss of crestal bone and subsequent implant failure, which led to the development of threaded features converting occlusal loads into a more favourable compressive loads at the bone interface. In the recent era of implantology, most of the common implant thread design marketed are V- shaped thread design. However, because of generation of higher shear forces generated by V-shaped thread design, modification has been made in the form of square, reverse buttress and buttress  where the axial load is dissipated through compressive loads while a V-shaped thread design transmit axial force through a combination of compressive, tensile, and shear forces which may have an influence of crestal bone loss. Thus, the present case report intends the use of two thread designs (V-shaped and buttress thread design) and its influence on crestal bone loss using CBCT radiographic analysis.