The presence of a large palatal or maxillary defect after partial or total maxillectomy for tumor, trauma or congenital deformation poses a challenge to prosthodontists, particularly when the use of an implant cannot be considered. This case report described the use of an air valve in a hollow silicone obturator to manufacture an inflatable obturator that could be extended further into undercut area to retain itself. The inflatable obturator exhibited adequate retention, stability and border sealing, thereby improving the masticatory,pronunciation and swallowing functions of patients. It may be a suitable alternative treatment option to an implant-retained obturator.

中文翻译：

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用于接受广泛上颌切除术患者的充气空心闭孔假体：病例报告。

在因肿瘤、外伤或先天性变形进行部分或全上颌切除术后，存在较大的上颌骨或上颌骨缺损对修复牙医提出了挑战，尤其是在无法考虑使用种植体的情况下。该案例报告描述了在中空硅胶闭塞器中使用空气阀来制造充气闭塞器，该闭塞器可以进一步延伸到底切区域以保持自身。充气式闭孔器表现出足够的保留、稳定性和边界封闭性，从而改善患者的咀嚼、发音和吞咽功能。它可能是种植体固位闭塞器的合适替代治疗选择。