Gupta Abhishek Kumar, Rekha Gupta, Shubhra Gill
Department of Prosthodontics, Maulana Azad Institute of Dental Sciences, New Delhi, 110002, India.
J Oral Biol Craniofac Res. 2021 Jan-Mar;11(1):17-21. doi: 10.1016/j.jobcr.2020.11.006. Epub 2020 Nov 12.
Total maxillectomy is referred to as bilateral resection of maxillae in patients suffering from a benign, malignant neoplasm or chronic infections like osteomyelitis, etc. It causes communication between the oral and antral cavity extending to the nasopharynx. A complete bilateral maxillectomy defect presents a considerably reconstructive challenge for the prosthodontist because of the absence of normal hard and soft tissues for the support of prosthesis. The surgical obturator was retained via spring which develops the seal between the acrylic plate and the dorsum of the tongue during deglutition, thus helping the patient to take a soft diet orally during the healing period. The definitive conventional closed bulb hollow obturator fabricated using the "lost wax bolus" technique, is a reliable and feasible treatment option to restore the total maxillectomy defect, thus improving and enhancing the quality of patient's life and livelihood.
全上颌骨切除术是指对患有良性、恶性肿瘤或慢性感染(如骨髓炎等)的患者进行双侧上颌骨切除。它会导致口腔与上颌窦之间出现连通,并延伸至鼻咽部。完全双侧上颌骨切除缺损给口腔修复医生带来了相当大的重建挑战,因为缺乏用于支撑假体的正常软硬组织。手术用闭孔器通过弹簧固定,在吞咽时可在丙烯酸板和舌背之间形成密封,从而帮助患者在愈合期间经口进食软食。采用“失蜡法”制作的定制传统封闭式球根状空心闭孔器,是修复全上颌骨切除缺损的可靠且可行的治疗选择,从而改善和提高患者的生活质量。