Final answer:
The most common implant placed is Endosteal, a type of implant inserted directly into the jawbone, providing a sturdy base for dental prosthesis. This is to be distinguished from other processes or types of implants such as Osseointegration, Subperiosteal, and Transosteal.
Step-by-step explanation:
The most common type of implant placed is B. Endosteal. These are implants placed within the bone and are typically screw-like or resemble small cylinders. Endosteal implants are the standard choice for those who need dental implants, as they are safe and effective and closely mimic the natural roots of teeth. The process for these implants involves inserting them directly into the jawbone where they then serve as a sturdy base for artificial teeth or other dental prosthesis.
Options A, C, and D refer to different aspects or types of implants: A. Osseointegration, the process by which an implant integrates with the bone; C. Subperiosteal, implants that are placed under the periosteum, above the bone but under the gums; and D. Transosteal, which are less common and extend through the jawbone.