[Functional rehabilitation of irradiated maxillary bones (author's transl)].

The teeth should be conserved before radiotherapy: --in patients with good buccodental hygiene the teeth are conserved and fluoride treatment instituted,--when hygiene is only moderate, the mandibular teeth outside of the treated area are left in place and fluoride treatment is also attempted. The crowns are conserved, and an attempt is even made in some cases to apply them, as for example on the canines.--when hygiene is inexistant, all the teeth are extracted.

[Micrographic aspect of mandibular osteoradionecrosis (author's transl)].

Fragments of the lower jaw from 42 patients with carcinoma of the oral cavity or oropharynx, and treated primarely with fraction radiotherapy, were excised for radiation osteonecrosis 6 month to 10 years after irradiations. The excised specimens are X-rayed before being coated with methylmetacrylate. They are then cut into thick sections along lines detailled on the X-ray films.