Midrand Dental Ceramics, Johannesburg, South Africa.
J Prosthodont. 2012 Jul;21(5):393-9. doi: 10.1111/j.1532-849X.2011.00841.x. Epub 2012 Feb 28.
For more than 25 years, computer-aided design and computer-aided manufacturing (CAD/CAM) technology has been used in implant restorative dentistry. Today this technology offers a means of milling titanium frameworks that fit dental implants accurately. This report presents a restoratively driven protocol employing advanced implant restorative and surgical techniques. Treatment of a patient with advanced periodontitis with extensive loss of hard and soft tissues is presented. After extraction of the patient's remaining hopeless teeth, dental implants were placed, along with interim, fixed-margin abutments and abutment protection caps. Two days later, acrylic resin fixed-interim prostheses restored the patient's esthetics and partial masticatory function. After implant osseointegration, maxillary, and mandibular frameworks for definitive prostheses were milled from Ti alloy, using one specific CAD/CAM technology. The benefits of this technology are also discussed.
二十多年来,计算机辅助设计和计算机辅助制造(CAD/CAM)技术已被应用于种植修复牙科。如今,这项技术为精确加工适合牙科种植体的钛金属支架提供了一种手段。本报告介绍了一种基于修复需求的方案,采用了先进的种植体修复和外科技术。本文呈现了一位患有严重牙周炎且伴有广泛软硬组织丧失的患者的治疗过程。在拔除患者其余无望的牙齿后,我们放置了牙科种植体,同时使用临时固定边缘基台和基台保护帽。两天后,我们使用丙烯酸树脂制作了临时固定义齿修复体,恢复了患者的美观和部分咀嚼功能。在种植体骨整合后,我们使用一种特定的 CAD/CAM 技术,从 Ti 合金上铣削出上颌和下颌的最终修复体支架。本文还讨论了这项技术的优势。