- hemi·sec·to·my (hem″e-sekґtə-me) [hemi- + -ectomy] amputation of one root of a two-rooted mandibular tooth. Cf. apicoectomy.
Medical dictionary. 2011.
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root amputation — excision of the root of a tooth; amputation of the root of a single rooted tooth is called apicoectomy, and that of one root of a two rooted mandibular tooth is hemisectomy. Called also radiectomy and radisectomy … Medical dictionary