Department of Prosthodontics, Peking University School and Hospital of Stomatology, Beijing, China.
Int J Oral Sci. 2012 Jun;4(2):114-8. doi: 10.1038/ijos.2012.22.
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.
上颌骨部分或全部切除后，如肿瘤、创伤或先天性畸形，会导致腭或上颌骨大面积缺损，这给修复医生带来了挑战，尤其是在无法考虑植入物的情况下。本病例报告介绍了在中空硅树脂闭塞器中使用气阀来制作可充气闭塞器的方法，该闭塞器可进一步延伸到缺损区域以保持自身位置。可充气闭塞器具有足够的固位、稳定性和边缘封闭性，从而改善了患者的咀嚼、发音和吞咽功能。它可能是一种替代种植体固位闭塞器的合适治疗选择。
