Radicular pulp
follows a tortuous and branching path, making complete cleansing and
preparation of the root canal system almost impossible, although instrumenting canals is ofteneasier than suggested in some texts. In addition, as the roots resorb, a different approach to RCT is
needed for the primary dentition, pure zinc oxide and eugenol being the obturation material of
choice.
Cross-sections of second deciduous molar showing features of anatomy of primary molars.