[Revisiting the dose-effect correlations in irradiated head and neck cancer using automatic segmentation tools of the dental structures, mandible and maxilla].

Purpose: Manual delineation of dental structures is too time-consuming to be feasible in routine practice. Information on dose risk levels is crucial for dentists following irradiation of the head and neck to avoid postextraction osteoradionecrosis based on empirical dose-effects data established on bidimensional radiation therapy plans.

Material And Methods: We present an automatic atlas-based segmentation framework of the dental structures, called Dentalmaps, constructed from a patient image-segmentation database.

[Our experience in reconstruction after transmandibular buccopharyngectomy. Comparative study of various flaps. Apropos of 74 cases].

A total of 74 cases of transmandibular buccopharyngectomy with reconstruction by local or regional flaps were analyzed to compare results of the use of temporofrontal and pectoralis major musculo-cutaneous flaps. Findings in this series suggested superiority for the use of the latter type.