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首页> 外文会议>International Conference on Mechanical Engineering, Materials and Energy >Design and the Reliability Research of the Restorable Dental Implant System Aiming at the Central Screw Fracture
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Design and the Reliability Research of the Restorable Dental Implant System Aiming at the Central Screw Fracture

机译：旨在瞄准中央螺杆骨折的可靠牙科植入系统的设计与可靠性研究

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In the modern dental surgery, due to the misoperation during the surgery or the higher loading force suffered for long time, the situation of the central screw fracture usually occurs, and thus which may result in the failure of the surgery or of implant prosthesis; and aiming at this fact, we now designed a kind of dental implant system which may satisfy the requirement of convenient restoration after the central screw factures. The advantage of this dental implant system was that, after the central screw facture occurs, we can replace the central screw for restoration directly without needing to take out the centre screw which had broken within the dental implant. By means of the finite element analysis, we can get to know that, if a torque equal to 30N.CM is inflicted on the original central screw, the dental implant system may produce a maximum equivalent stress equal to 828.49MPA while if a torque equal to 60N.cm is inflicted on the central screw used for restoration, the dental implant system may produce a maximum equivalent stress equal to 526.44MPA. Thus the torsional property of the dental implant system after restoration was improved significantly on the contrary. Furthermore, we analyzed the occlusal force and the fatigue aimed at the dental implant system after restoration revealed, and we analyzed the mechanics and the fatigue status of the dental implant system and the osseous tissue by means of inflicting a force to the dental crown, which was equal to 300N and the angel between which and the upright direct was equal to 0,15°, 30° and 45° respectively under the implantation status in the horizontal bone and implantation status in the stimulated osteanabrosis of 2mm. The above analysis revealed that, the maximum equivalent stress produced by the restorable implant system was lower than its yield strength, and the minimum safety factor was higher than 1. Furthermore, this type of dental implant system has superior safety, and it is convenient for restoration and fit for the modern dentistry implant surgery, thus it has a giant application potential.
机译：在现代牙科手术中，由于在手术过程中的操作或遭受长时间的更高的载荷力，中心螺栓断裂的情况通常发生，因此这可能导致手术或植入假体的故障;在这个事实瞄准，我们现在设计了一种植牙系统的中心螺钉factures后可满足方便修复的要求。本牙科植入物系统的优点是，中心螺栓骨折发生之后，我们可以更换为恢复中心螺栓直接而无需取出中心螺丝，其已经牙科植入物内断裂。通过有限元分析的手段，我们可以知道的是，如果一个扭矩等于30N.CM是造成在原中心螺栓，所述牙科植入物系统可以产生最大相当于应力等于828.49MPA而如果扭矩等于到60N.cm对用于恢复中心螺钉造成的，所述牙科植入物系统可以产生最大相当于应力等于526.44MPA。因此，恢复后的植牙系统的扭转财产相反显著改善。此外，我们分析了咬合力，目的是牙科植入物系统后恢复揭示了疲劳，我们分析了力学和牙科植入物系统的疲劳状态，并通过造成一个力施加到牙冠的方法的骨组织，其是下在2毫米的受激osteanabrosis水平骨和植入状态的植入状态等于300N和天使其与直立直接等于0.15°之间，30°和分别°45。上述分析揭示了，通过在可恢复植入系统所产生的最大应力相当于比其屈服强度低，并且最小安全系数高于1。此外，这种类型的牙科植入物系统的具有优异的安全性，这是方便恢复和适应的现代牙科植入手术，因而具有巨大的应用潜力。

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