Prosthodontic Diagnostic Index (PDI) – A Terse Review
B. Lakshmana Rao1*
Abstract
In order to standardize the diagnosis and treatment planning of patients who are dentate, partially edentulous, and edentulous, the American College of Prosthodontists developed the Prosthodontic Diagnostic Index (PDI). It overcomes the drawbacks of earlier classification by accounting for anatomical, functional, and aesthetic factors. The PDI divides cases into four classes (I to IV), from minimally to severely compromised, based on primary diagnostic criteria such as bone height, residual ridge morphology, maxillomandibular relationships, occlusion, and abutment condition. Additional diagnostic characteristics, such as systemic health, psychological factors, and aesthetic requirements, also influence clinical decision-making. The PDI enhances patient care, advances educational objectives, and facilitates better clinician communication. However, it may not capture all patient-specific complexities, and accurate application necessitates the right training. All things considered, the PDI is a helpful tool in contemporary prosthodontics for achieving predictable and consistent outcomes.
Keywords:
Prosthodontic Diagnostic Index (PDI); Diagnostic Criteria in Completely Edentulous; PDI in Dentate Conditions; Residual Ridge Morphology.
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