Today, the effectiveness of dental implants is significantly influenced by radiology and diagnostic imaging, which are crucial for planning, placement, and ongoing monitoring in modern dental implantology. Technological advancements have resulted in a worldwide increase in the use of radiologic imaging during the preoperative, intraoperative, and postoperative stages of treatment. Before the late 1980s, traditional radiographic methods such as intraoral, panoramic, and cephalometric radiographs were common. The introduction of three-dimensional (3D) imaging techniques like computed tomography (CT) and cone-beam computed tomography (CBCT) has revolutionized the radiographic assessment of implant patients. The diagnosis and treatment planning for dental implants has seen significant improvements, providing surgeons with more comprehensive information. This chapter will explore the role of dental radiology in implantology, covering its techniques, procedures, and the radiological evaluation of implant sites.