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Evaluating Interfaculty Agreement in ICDAS Coding Between Restorative and Nonrestorative Dentists Using Photographic
Summary
Dental faculty achieved higher accuracy in caries detection training using extracted teeth compared to photographs. Both restorative and nonrestorative specialists effectively utilized the International Caries Detection and Assessment System (ICDAS) after training.
Area of Science:
- Dental diagnostics
- Caries detection systems
Background:
- The International Caries Detection and Assessment System (ICDAS) is a standardized method for assessing caries severity.
- Effective training in ICDAS is crucial for dental educators and students.
Purpose of the Study:
- To compare the effectiveness of photographic images versus extracted teeth for ICDAS training.
- To evaluate if restorative and nonrestorative dental faculty achieve similar accuracy in ICDAS coding.
Main Methods:
- Dental faculty underwent ICDAS training and rotated through diagnostic stations using extracted teeth or their images.
- Performance was assessed using linearly weighted Kappa (k w) values against a gold standard.
- Faculty were categorized into restorative and nonrestorative disciplines.
Main Results:
- Faculty demonstrated significantly higher accuracy when coding carious surfaces on extracted teeth compared to photographic images (p=0.0005).
- Median k w scores were nearly identical between restorative and nonrestorative faculty groups (p=0.482).
Conclusions:
- Extracted teeth offer valuable training for ICDAS, potentially enhancing the identification of early caries lesions.
- Dental faculty across all specialties can effectively learn and apply ICDAS coding, promoting standardized caries management.

