ABSTRACT
Objectives: to evaluate class shifts using ICDAS criteria pre- and post-preparation, especially in anterior and posterior teeth. Method: An observational cross-sectional design, 68 teeth were categorized into three groups (D3, D4, and D5) and assessed using visual clinical examination, caries detector dyes, and fluorescence light (FACE). Data were analyzed using Kappa and Chi-square tests. Result: This study showed inter-rater reliability of 0.737 before preparation and 0.962 after preparation. Progression from D3 to D5, D4 to D5, D4 to D6, and D5 to D6 was observed at rates of 100%, 84%, 16%, and 59.1%, respectively. No significant differences were found in anterior teeth before and after (p=0.160) preparation, while significant differences were noted in posterior teeth (p<0.001). Conclusion. This study highlights the dynamic nature of caries classification, revealing complexities in lesion progression and diagnostic challenges. The observed shifts underscore the importance of precise examination techniques and informed decision-making in treatment planning.
