OSLO, Norway: Head and neck cancer is the seventh-most diagnosed cancer group globally, and among its treatment modalities is radiotherapy, used as the primary therapy, as an adjuvant or palliatively. The treatment of head and neck cancer with radiotherapy presents a range of issues for the dental health of patients due to radiation injury to the surrounding normal tissue. A key means of expediting a return to regular oral function has been through the use of dental implants, though the question of whether to place these before or after radiotherapy has been debated. Recent PhD research from the University of Oslo has systematically explored the issue, yielding some highly significant results.