root canal orifice

root ca·nal or·i·fice

an opening in the pulp chamber leading to the root canal.

root ca·nal or·i·fice

(rūt kă-nal ōri-fis)
Opening in pulp chamber leading to the root canal.
References in periodicals archive ?
The root canal orifice in group D was covered with Cavit and all the surfaces were covered with two layers of nail varnish.