In multirooted teeth, formation of multiple roots is due to presence of:
(A) Epithelial diaphragm (B) Cell rests of Malassez (C) Toot bud division or bell stage (D) None of the above
(A) Prior to beginning of root formation, the HERS forms epithelial diaphragm. The outer and the inner enamel epithelia bend at the future cementoenamel junction into a horizontal plane, narrowing the wide cervical opening of the tooth germ. Differential growth of the epithelial diaphragm in the multi rooted teeth causes the root trunk into two or three roots.