Vaidya Pravin Vasudeo, Dutta Abir, Rooj Suparna, Talukdar Rahul, Bhombe Komal, Seesala Venkata Sundeep, Syed Zahiruddin Quazi, Bandyopadhyay Tapas Kumar, Dhara Santanu
Advanced Technology Development Centre, IIT Kharagpur, West Bengal, India.
Sharad Pawar Dental Collage and Hospital, Dutta Meghe Institute of Medical Science, Wardha, Maharashtra, India.
Heliyon. 2023 May 26;9(6):e16451. doi: 10.1016/j.heliyon.2023.e16451. eCollection 2023 Jun.
Implant stability significantly impacts accelerated osseointegration, leading to faster patient recovery. Both primary and secondary stability necessitates superior bone-implant contact influenced by the surgical tool required to prepare the final osteotomy site. Besides, excessive shearing and frictional forces generate heat causing local tissue necrosis. Hence, surgical procedure necessitates proper irrigation with water to minimize heat generation. Notably, the water irrigation system removes bone chips and osseous coagulums, which may help accelerate osseointegration and improve bone-implant contact. The inferior bone-implant contact and thermal necrosis at the osteotomy site are primarily responsible for poor osseointegration and eventual failure. Therefore, optimizing tool geometry is key to minimizing shear force, heat generation, and necrosis during final osteotomy site preparation. The present study explores modified drilling tool geometry, especially cutting edge for osteotomy site preparation. The mathematical modeling is used to find out ideal cutting-edge geometry that facilitates drilling under relatively less operational force (0.55-5.24 N) and torque (98.8-154.5 N-mm) with a significant reduction (28.78%-30.87%) in heat generation. Twenty-three conceivable designs were obtained using the mathematical model; however, only three have shown promising results in static structural FEM platforms. These drill bits are designed for the final drilling operation and need to be carried out during the final osteotomy site preparation.
种植体稳定性对加速骨结合有显著影响,从而使患者恢复更快。一次稳定性和二次稳定性都需要良好的骨-种植体接触,这受到制备最终截骨部位所需手术工具的影响。此外,过大的剪切力和摩擦力会产生热量,导致局部组织坏死。因此,手术过程需要用适当的水冲洗以尽量减少热量产生。值得注意的是,水冲洗系统可清除骨屑和骨凝块,这可能有助于加速骨结合并改善骨-种植体接触。截骨部位不良的骨-种植体接触和热坏死是骨结合不良及最终失败的主要原因。因此,优化工具几何形状是在最终截骨部位制备过程中最小化剪切力、热量产生和坏死的关键。本研究探索改良的钻孔工具几何形状,特别是用于截骨部位制备的切削刃。采用数学建模来找出理想的切削刃几何形状,以便在相对较小的操作力(0.55 - 5.24 N)和扭矩(98.8 - 154.5 N·mm)下进行钻孔,同时热量产生显著减少(28.78% - 30.87%)。使用数学模型获得了23种可设想的设计;然而,只有三种在静态结构有限元平台上显示出有希望的结果。这些钻头专为最终钻孔操作设计,需要在最终截骨部位制备期间进行。