While traditional clinical parameters—such as probing pocket depths and bleeding on probing—provide vital information regarding soft tissue inflammation, they are inherently subject to intra- and inter-examiner variability.
Consequently, radiographic examination remains the indispensable gold standard for objectively evaluating alveolar bone levels, bone defect morphology, and osseous density surrounding natural teeth and dental implants.
For decades, two-dimensional (2D) intraoral modalities—specifically parallel periapical and bitewing radiographs—have served as the primary diagnostic workhorses.
However, 2D imaging inherently suffers from anatomical superimposition, geometric distortion, and an inability to accurately depict complex three-dimensional defects, such as multi-wall intrabony craters, buccal/lingual plate loss, and early furcation involvements.
Published in Periodontology 2000, this comprehensive state-of-the-art review critically examines the paradigm shift from traditional 2D radiography to advanced three-dimensional (3D) modalities, primarily Cone Beam Computed Tomography (CBCT).
The publication delivers a rigorous, evidence-based synthesis evaluating the diagnostic accuracy, limitations, and clinical indications of CBCT in periodontal decision-making.
While 3D imaging offers unprecedented visualization of complex bone architecture without structural overlap, the authors emphasize the necessity of managing diagnostic challenges, including beam-hardening artifacts caused by metallic restorations or implant fixtures.
Furthermore, the review explores the groundbreaking integration of artificial intelligence (AI) and deep learning algorithms into digital radiographic workflows, highlighting how automated bone loss detection and digital staging tools can standardize diagnostics and enhance chairside clinical precision.
Ultimately, the review provides clinicians with a practical, risk-benefit framework to judiciously combine 2D and 3D imaging while maintaining patient safety through optimized radiation protocols.
📖 Ready to analyze the complete diagnostic protocols, evaluate 2D versus 3D imaging accuracy, and explore the future of AI-driven periodontal diagnostics? Click here to read the full article PDF: Radiographic diagnosis of periodontal diseases – Current evidence versus innovations.

