使用锁定锥形植入物进行修复是一种广泛使用的方法。然而,锥形连接系统,如锁定锥形植入系统很少被检查。这项研究提供了锁定锥度固定修复的回顾性调查,主要关注假肢并发症。
检查了2008年至2010年接受锥形连接植入物治疗的患者。根据Bicon系统的标准程序进行植入位点的制备。骨愈合需要超过6个月,此后开始了假肢手术。使用了集成的基牙冠或金瓷冠,假体类型为单冠或固定假体。一旦王冠到位,它的闭塞被彻底检查和调整,然后将表冠上釉或精细抛光。使用Kaplan-Meier方法计算5年和10年的累积无并发症率。此外,Cox回归模型用于确定独立影响结果的因素.还研究了植入物的存活和边缘骨丢失。
从2008年到2010年,共检查了392例患者,这些患者接受了541种植入物和434种基于锁定锥形植入物的修复。总体5年累积无并发症率为83.34%。最常见的假肢并发症是贴面碎裂,频率为67.53%。根据Cox回归模型,整合基牙冠的无并发症率明显高于金瓷冠,磨牙区明显高于前磨牙区,女性明显高于男性。只有三次植入物失败,和1年时的平均边际骨损失值,5年和10年为0.25mm(95%CI±0.12),0.40mm(95%CI±0.03)和0.51mm(95%CI±0.05),分别。
贴面碎裂是锁定锥形种植体支撑固定修复体最常见的并发症。IAC的并发症发生率明显高于GPCs。年龄,location,和假体类型不是假体并发症的决定因素。此外,锁定锥形种植体的长期临床效果可以满足临床需要。植入物周围的骨组织水平可以保持长期稳定性。
Restoration with locking-taper implants is a widely used methodology. However, conical connection systems such as locking-taper implant systems have rarely been examined. This study provides a retrospective investigation of locking-taper fixed restorations, mainly focusing on prosthetic complications.
Patients undergo treatment with conical connected implants from 2008 to 2010 were examined. Preparation of the implant sites was performed according to the standard procedures for the Bicon system. Bone healing took over 6 months, and the prosthetic procedure was initiated thereafter. Integrated abutment crowns or gold porcelain crowns were used, and the prosthesis type was a single crown or a fixed dental prosthesis. Once the crown was in place, its occlusion was thoroughly checked and adjusted, and then the crown was glazed or finely polished. The Kaplan-Meier method was used to calculate the cumulative complication-free rates for 5 and 10 years. Additionally, a Cox regression model was used to identify the factors that independently influenced the results. Implant survival and marginal bone loss were also investigated.
A total of 392 patients who underwent 541 implants and 434 locking taper implant-based restorations from 2008 to 2010 were examined. The overall 5-year cumulative complication-free rate was 83.34%. The most common prosthetic complication was veneer chipping, with a frequency of 67.53%. According to the Cox regression model, the complication-free rate of integrated abutment crowns was significantly higher than that of gold porcelain crowns, that of molar regions was significantly higher than that of premolar regions, and that of females was significantly higher than that of males. Only three implant failures happened, and the mean marginal bone loss values at 1- year, 5-years and 10- years were 0.25 mm (95% CI ± 0.12), 0.40 mm (95% CI ± 0.03) and 0.51 mm (95% CI ± 0.05), respectively.
Veneer chipping was the most common complication with locking-taper implant-supported fixed restorations. The incidence of complications for IACs is significantly higher than that for GPCs. Age, location, and prosthesis type are not determinants of prosthetic complications. Besides, the long-term clinical effect of locking-taper implant can meet the clinical needs. The bone tissue level around the implant can maintain long-term stability.