A comparison of methods for assessing root canal curvature using periapical radiographs: an intrarater/interrater reliability and agreement study

All four measurement techniques demonstrated excellent agreement levels, indicating their reliability in evaluating root canal curvature. However, given the highest interrater agreement observed with the Luiten method, it may be considered the most consistent choice for clinical practice, especially in situations requiring precise and reproducible measurements. Clinicians are advised to consider adopting the Luiten method or selecting a technique that best aligns with their specific clinical context to enhance treatment planning accuracy and outcomes.