Radiographic imaging is key in all phases of dental implant therapy, i.e., diagnosis, planning and assessment of treatment, and long-term monitoring, both in terms of clinical practice and in implant research. Traditionally two-dimensional (2-D) imaging has been the standard in clinical practice and research. However, recent technological advances and increased access to new technologies have made three-dimensional (3-D) imaging quite common in both clinical practice and research (e.g., cone-beam computed tomography, CBCT; magnetic resonance imaging, MRI). In this chapter, possibilities and limitations of peri-apical, panoramic, CBCT, MRI, subtraction radiography, and micro-CT imaging are discussed in the context of implant dentistry.