What is Hemi-section?

  • Hemi-section is performed on teeth with two or more roots. (most commonly Molar teeth)
  • It is the section of one or more roots that have an infection source or fracture present
  • Root Canal filling of the remaining root/s is necessary in hope of saving the tooth
  • A crown is required where Root canal and Hemi-section treatments are successful
  • A surgical approach to gain visible access of the roots is the most predictable technique for success


Indications for Hemi-section?

  • Root canal filling treatment hasn’t been considered successful
  • The root/s of a tooth have a source of infection remaining
  • The root/s have a fracture present
  • The patient wishes to try and save a tooth rather than have extraction
  • The surviving root is accessible and able to be treated with Root canal
  • The surviving root is able to respond to a post-crown restorative treatment



  • May prevent the loss of the tooth, avoiding bone loss in the area, teeth shifting and opposing teeth over-erupting into the space.
  • If successful, the patient will retain their ability to eat and chew as normal
  • Avoids replacement options such as Dentures and Bridges which can be detrimental to other teeth



  • Where roots are fused together or very curved (Poor candidate for Hemi-section)
  • Patients may be unwilling to undergo surgical and root canal treatments
  • Timely procedure



  • Increased stress on other teeth (because of the loss of 50% of the tooth)
  • Infection, swelling, brusing after the surgical procedure