noun, plural pulpectomies. Dentistry.
the removal of all the pulp tissue in a tooth in the course of endodontic therapy.

1920–25; pulp + -ectomy

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Medical Dictionary

pulpectomy pul·pec·to·my (pŭl-pěk'tə-mē)
Removal of the dental pulp, including that in the roots.

The American Heritage® Stedman's Medical Dictionary
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