Clinical Validation of Smartphone-Enabled Pulse Oximetry for Objective Pulp Vitality Assessment: a Diagnostic Accuracy Study - Caldeira, Celso Luiz; Zamalloa, Stephanie Isabel Diaz; Sakitani, Claudia Regina Guimaro; Barletta, Fernando Branco; Holzhausen, Marinella (Journal of Endodontics, 2025)