Brancacci Erika, García González Susana, Galve-Huertas Andrea, Bennani Aida, Hernández Alfaro Federico, Aboul-Hosn Centenero Samir
Department of Oral & Maxillofacial Surgery, Universitat Internacional de Catalunya, 08195 Sant Cugat del Vàlles, Spain.
Department of Dentistry, Universitat Internacional de Catalunya, 08195 Sant Cugat del Vallès, Spain.
Materials (Basel). 2023 Mar 14;16(6):2330. doi: 10.3390/ma16062330.
The primary objective of this ex vivo study was to assess the influence of increasing insertion torques on three types of dental implants and possible alterations of their microgeometry after the application of three different torque intensities.
27 implants of 3 different implant brands (Groups A, B and C) were placed in cow ribs using 30 Ncm, 45 Ncm and 55 Ncm insertion torques. The implants were subsequently removed using trephine burs, and SEM analysis was carried out in order to detect implant surface and connection changes, as compared to the implant controls.
Surface deformations were predominantly observed on the third apical part of the implants. The alterations presented with increasing insertion torques, with 45 Ncm being the threshold value. Prosthetic connections were also compromised.
The changes sustained by the implants were proportional to the insertion torque they were subjected to; 45 Ncm and greater insertion torques resulted in more consistent damage, both on the implant surface and the implant connection.
本体外研究的主要目的是评估增加植入扭矩对三种类型牙科植入物的影响，以及在施加三种不同扭矩强度后其微观几何结构的可能变化。
将27颗来自3个不同植入物品牌的植入物（A组、B组和C组）以30 Ncm、45 Ncm和55 Ncm的植入扭矩植入牛肋骨中。随后使用环钻取出植入物，并进行扫描电子显微镜（SEM）分析，以检测与植入物对照相比的植入物表面和连接变化。
主要在植入物的根尖第三部分观察到表面变形。这些变化随着植入扭矩的增加而出现，45 Ncm为阈值。修复连接也受到影响。
植入物所承受的变化与它们所经受的植入扭矩成比例；45 Ncm及更大的植入扭矩会在植入物表面和植入物连接上导致更一致的损伤。
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