The hemisection is a useful alternative treatment to extraction to save the multi-rooted teeth by endodontic approach, which includes the root canal treatment of the remaining roots and restoring them with suitable restorative material to splinting it with the adjacent tooth to decrease the risk of displacement followed by a fixed prosthodontic prosthesis to maintain the occlusal balance. (National Center for Biotechnology Info)

Contraindications include the presence of a strong abutment tooth adjacent to the proposed hemisection, which could act as an abutment to a prosthesis. The remaining root may be inoperable for the necessary root canal treatment. (Hidawi)

To determine whether a patient is a good fit for a hemisection, the dentist will first perform an intraoral (inside the mouth) examination to evaluate the teeth health. (NewMouth)