Ramasamy Thirumurthy V, Chandra Jagadish
Private Practice, Coimbatore, Tamil Nadu, India.
Department of Oral Surgery, Yenopoya Dental College and Hospital, Mangalore, Karnataka, India.
J Indian Prosthodont Soc. 2020 Jan-Mar;20(1):115-119. doi: 10.4103/jips.jips_171_19. Epub 2020 Jan 27.
Prosthodontic management of palatal defect is fundamental to close patient's oronasal communication and improve masticatory function, phonetics, esthetics, and comfort. Maxillary defects are the direct consequence of the surgical treatment of malformations, neoplasms, or trauma. The primary goal of an obturator is to close palatal defects after maxillectomy and to improve speech and masticatory function. This clinical report describes the use of a flexible silicone obturator for the treatment of a 34-year-old patient with partial maxillectomy due to osteosarcoma of the maxilla. A conventional cast partial denture with a hollow bulb made in acrylic was given as a definitive obturator initially, which was not comfortable for the patient. Alternatively, a new technique of fabrication of obturator with silicone to close palatal defect was decided to establish an acceptable phonetics, comfort, speech, and function for the patient. This silicone obturator gets retention by "snug fit" from the defect site.
腭部缺损的修复治疗对于封闭患者口鼻通道、改善咀嚼功能、语音、美观及舒适度至关重要。上颌骨缺损是畸形、肿瘤或创伤手术治疗的直接后果。赝复体的主要目的是在全上颌骨切除术后封闭腭部缺损,并改善语音和咀嚼功能。本临床报告描述了使用一种柔性硅橡胶赝复体治疗一名因上颌骨肉瘤行部分上颌骨切除术的34岁患者的情况。最初给予患者一副常规铸造的带有丙烯酸制成的空心球的局部义齿作为最终赝复体,但患者佩戴不适。于是决定采用一种用硅橡胶制作赝复体以封闭腭部缺损的新技术,为患者建立可接受的语音、舒适度、言语及功能。这种硅橡胶赝复体通过在缺损部位的“紧密贴合”获得固位。