Block Michael, Finger Israel, Castellon Paulino, Lirettle Denise
Department of Oral and Maxillofacial Surgery, Louisianna State University, School of Dentistry, New Orleans 70119, USA.
J Oral Maxillofac Surg. 2004 Sep;62(9):1131-8. doi: 10.1016/j.joms.2004.05.115.
Patients desire efficient restoration of missing teeth. Immediate provisionalization of implants at the time of placement can provide the patient with a tooth-like restoration. Our hypothesis is that preoperative fabrication of the implant abutment and provisional restoration can provide successful immediate provisionalization of implants, if specific diagnostic criteria are used for patient selection.
This hypothesis is evaluated by prospectively following 74 implants thus treated for 6 months to 2 years. A technique is presented to illustrate a simple and reliable method to provisionally restore a single tooth restoration. The method involves preoperative placement of an implant analog into a model, preparation of the abutment on the model, and fabrication of a provisional crown out of occlusion. At the time of surgery, the implant is placed according to the prescription of the restorative dentist, the surgeon places the abutment and provisional crown, and the final restoration is fabricated after the implant integrates.
Seventy of 74 (94.6%) restorations have been successful with up to 2-year follow-up, which is similar to single tooth implants treated using a 2-stage protocol.
Single tooth immediate provisionalization implants are effective techniques when specific diagnostic criteria are used.
患者期望高效修复缺失牙。种植体植入时即刻进行临时修复可为患者提供类似牙齿的修复体。我们的假设是，如果使用特定诊断标准来选择患者，术前制作种植体基台和临时修复体能够成功实现种植体的即刻临时修复。
通过对74颗经如此治疗的种植体进行6个月至2年的前瞻性随访来评估这一假设。介绍了一种技术，以说明一种简单可靠的单颗牙齿修复临时修复方法。该方法包括术前将种植体代型放入模型中、在模型上制备基台以及制作无咬合接触的临时冠。手术时，根据修复牙医的方案植入种植体，外科医生安装基台和临时冠，种植体愈合后制作最终修复体。
74颗修复体中有70颗（94.6%）在长达2年的随访中成功，这与采用两阶段方案治疗的单颗牙齿种植体情况相似。
当使用特定诊断标准时，单颗牙齿即刻临时修复种植体是有效的技术。
