上颌缺损是由于鼻腔和鼻旁窦恶性肿瘤的手术切除或先天性原因而发生的。上颌切除缺损患者的康复在恢复丢失的形式方面提出了挑战,功能和言语。修复缺损的上颌临时闭塞器通常因缺乏足够的固位而复杂化。稳定性,和支持。本病例报告介绍了简化的方法,修复一例上颌窦鳞状细胞癌致上颌次全切除术,使用带有“U”环和改良的颊凸缘的闭合中空球形闭塞器假体,以增强假体的固位。
Maxillary defects occur either as a result of surgical resection of malignant tumors of the nasal cavity and paranasal sinuses or of the congenital causes. Rehabilitation of the patients with maxillectomy defects presents a challenge in restoring the lost form, function and speech. Maxillary interim obturators in prosthetic reconstruction of the defects are often complicated with lack of adequate retention, stability, and support. This case report presents the simplified approach, to rehabilitate a case of sub-total maxillectomy due to squamous cell carcinoma of maxillary sinus, using a closed hollow bulb obturator prosthesis fabricated with a \"U\" loop and a modified buccal flange for enhanced retention of the prosthesis.