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2025-09-18
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2025-09-18
白女士,36岁。主诉:咨询种植牙现病史:拔牙后一个月余咨询种植牙。系统性疾病:无CBCT如图所示:15  16  17  25 27缺失,26前移后25空间缩小。左侧上颌窦可见囊肿。局部CBCT:15位点断根,牙槽嵴顶呈凹坑状凸向上颌窦底。治疗计划:上颌窦内提升    窦内植骨+牙槽嵴顶少量垂直骨增量,同期植入植体。 备用方案:上颌窦外提   窦内植骨+牙槽嵴顶少量垂直骨增量,同期植入植体。口内照如下:告知患者方案、费用及并发症,知情同意并签署各项同意书。局部麻醉下,经牙槽嵴顶+14近中垂直切口,切开翻瓣,在去除15断根时突然落空感,上颌窦外侧壁开窗,剥离上颌窦黏膜。取除断根15  17位点制备洞形,15上颌窦黏膜覆盖生物膜,植入骨粉,植入4.1-10植体。17上颌窦内提,植入4.8-10植体。此时15远中骨壁非常薄。为了15远中骨台阶能有很好的过渡及减少远中的骨吸收,在15远中植入7mm...[详细]
2025-09-15
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2025-09-15
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2025-09-14
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2025-09-08
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2025-08-17
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2025-08-14
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2025-08-09
目前,拔牙后牙槽骨改建对于种植修复仍是一个挑战性的难题,而上颌前牙区的唇侧骨壁厚度普遍小于1mm,存在骨壁过薄甚至缺如的问题。一方面更易引起骨吸收,影响种植术后的远期预后效果,导致种植失败;另一方面缺少硬组织支持将导致种植位点唇侧龈缘退缩,最终造成相邻龈缘线不连续、种植体暴露、龈乳头解剖形态消失等美学缺陷,无法满足患者的美学期望。为了减少上颌前牙区拔牙后的唇侧骨丧失,维护上颌前牙区种植术后的美学效果,有研究者已经提出了许多方法来对抗拔牙后的骨改建,如即刻种植、引导骨再生、结缔组织移植、超量植骨、双区植骨等,这些方法可以一定程度地减少或补偿唇侧骨吸收,但都不能完全有效地达到阻止上颌前牙区拔牙术后骨丧失的目标。所以前牙种植修复后长久维持唇侧软硬组织形态,不退缩,牙周健康,成为种植医生永远追求的目标。此病例于今年二月份就整理上传,可能技术原因没发上来。今天重新编辑发上来,正好将后来复查和修改的照...[详细]
2025-08-04
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2025-07-23
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