This prospective clinical study aims to evaluate the diagnostic accuracy of intraoral scans (IOS) for the detection of dental plaque and caries. The diagnostic performance of IOS will be compared with current clinical reference standards. For plaque assessment, IOS-based evaluation will be compared with plaque detection using disclosing agents. For caries detection, IOS (including white-light imaging and caries detection features) will be compared with conventional visual inspection and bitewing radiography. Adult patients aged 18 to 70 years will be included.