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两侧上颌骨缺损时,缺损腔大而深,在固位、支持、修复方法上都存在困难,如用整体修复法,因病人张口度较小,修复体难以戴入;采用分瓣式义颌设计,不仅修复体可顺利戴入,而且能充分利用左右颊侧带状瘢痕上部的倒凹区,以获得足够的固位和支持作用。 1 典型病例 患者,女性,19岁。10个月以前因患癌瘤将两侧上颌骨摘除,术后作放疗,近期病理检查未见癌复发,准备作义颌,检查:全身情况一般,面中部凹
Both sides of the maxillary defect, the defect cavity large and deep, in the retention, support, repair methods are difficult, such as with the whole repair method, due to the patient mouth opening smaller, difficult to wear prosthesis; Jaw design, not only the prosthesis can be successfully worn, but also take full advantage of the left and right buccal band scarring the upper part of the concave area, in order to obtain adequate retention and support role. A typical case of patients, female, 19 years old. 10 months ago due to cancer on both sides of the maxilla removed, postoperative radiotherapy, no recent pathological examination of cancer recurrence, prepared for the maxillary jaw, check: the general condition, the surface of the central concave