“…17 Studies in the literature on QoL in patients with maxillectomy and rehabilitation with obturators 5,7,8,10,11,14,16,21,23 have shown that the correlation between obturator function (Obturator Functioning Scale [OFS]) and QoL 5,8,10,11,16,23 can be influenced by clinical factors, such as type of tumor and stage of disease, extent of the ablative defect, postoperative radiation therapy, number and condition of remaining maxillary teeth, and demographic and other social variables. 5,8,14,16,23 To the best of the authors' knowledge, studies of this kind of the Brazilian population are rare. 6 After maxillectomy, patients can develop problems related to functional performance of eating and talking 5,8,11,16 and xerostomia related to radiotherapy.…”