Artzi Z, Nemcovsky C E, Bitlitum I, Segal P
Department of Periodontology, Maurice and Gabriela Goldschleger, School of Dental Medicine, Tel Aviv University, Tel Aviv, Israel.
Clin Oral Implants Res. 2000 Oct;11(5):505-10. doi: 10.1034/j.1600-0501.2000.011005505.x.
Accurate implant placement in the anterior maxilla is essential in achieving optimal prosthetic rehabilitation with proper function and acceptable esthetic and phonetic demands. One of the preferable prosthetic solutions to restore a missing maxillary incisor in young adults is by an implant-supported crown. Bone resorption together with an enlarged incisive foramen, challenge proper implant placement. A simultaneous procedure where the implant osteotomy site penetrated the incisive canal is presented. A configurated cortico-cancellous block graft core was adjusted to fit the foramen while its soft tissue content was pushed back posteriorly but not removed. This procedure was followed by an immediate implant placement. Re-entry at 9 months revealed solid bone support embracing the implant body. Although the size of the incisive foramen diminished significantly, the nasopalatine branches were still evident. No complications and/or loss of sensation were observed.
在上颌前部准确植入种植体对于实现功能良好、美观和语音效果可接受的最佳修复至关重要。对于年轻成年人上颌中切牙缺失的修复，一种较好的修复解决方案是种植体支持的牙冠。骨吸收以及切牙孔扩大给种植体的正确植入带来了挑战。本文介绍了一种同期手术，即种植体截骨部位穿透切牙管。调整了一个皮质骨-松质骨块状移植骨块的形状以适配切牙孔，同时将其软组织部分向后推但不切除。此操作之后立即植入种植体。9个月时再次手术发现种植体周围有坚实的骨支持。尽管切牙孔的大小显著减小，但鼻腭神经分支仍然清晰可见。未观察到并发症和/或感觉丧失。
