Worldwide Assessment of the Mandibular First Molar Second Distal Root and Root Canal: A Cross-sectional Study with Meta-analysis

Jorge Martins, Christian Nole, Hani Ounsi, Peter Parashos, Gianluca Plotino, Magnús F. Ragnarsson, Rubén Rosas Aguilar, Fábio Santiago, Hussein C. Seedat, Walter Vargas, Murilo von Zuben, Yuerong Zhang, Hussam Alfawaz, Moataz-Bellah A.M. Alkhawas, Zaher Altaki, Luiza Berti, Carlos Bóveda, Imran Cassim, A. Chaniotis, Daniel Flynn, José Antonio González Sánchez, Jojo Kottoor, Adam Monroe, Emmanuel João Nogueira Leal Silva, Marco A. Versiani