pulpotomy

noun
pulp·​ot·​o·​my | \ ˌpəl-ˈpät-ə-mē How to pronounce pulpotomy (audio) \
plural pulpotomies

Medical Definition of pulpotomy

: removal in a dental procedure of the coronal portion of the pulp of a tooth in such a manner that the pulp of the root remains intact and viable