AUTHOR=Lin Xuandong , Xie Hongyu , Ruan Sijie , Ma Xueling , Long Jindong , Xie Fangfang 

TITLE=Five-canal maxillary first molar with calcified MB2 and low bifurcation of distal root canals: a case report

JOURNAL=Frontiers in Oral Health

VOLUME=Volume 6 - 2025

YEAR=2025

URL=https://www.frontiersin.org/journals/oral-health/articles/10.3389/froh.2025.1511699

DOI=10.3389/froh.2025.1511699

ISSN=2673-4842