Popova N V, Arsenina O I, Lebedenko I Yu, Rusanov F S, Khvorostenko E A, Glukhova N V
Central Research Institute of Dentistry and Maxillofacial Surgery, Moscow, Russia.
Peoples' Friendship University of Russia, Moscow, Russia.
Stomatologiia (Mosk). 2021;100(3):7-12. doi: 10.17116/stomat20211000317.
The aim of this research is the experimental study measuring stability of the orthodontic miniscrews «Turbo» designed in Russia in comparison with its foreign analogues, namely, «Vector Tas» (USA) and «BioRay» (Taiwan).
Four self-drilling orthodontic miniscrews of each manufacturer, i.e. «Vector Tas», USA, (10-mm length, 2-mm diameter), «BioRay», Taiwan, (10-mm length, 2-mm diameter), «Turbo», Russia, (9-mm length, 2-mm diameter), a total of 12 items, were inserted into native pig mandible sample. Their stability was estimated by torques using a dynamometer (Zahoransky AG, Germany) and «Periotest» device («Periotest M», Germany). This experiment was conducted in native pig mandible sample immediately after the screws' placement and in 7 days after loading at an angle 70°.
After application of a load, the decreased torque values and increased Periotest values were registered in all orthodontic miniscrews.
Orthodontic miniscrews «Turbo» designed in Russia are slightly inferior to «VectorTas» miniscrews and superior to «BioRay» miniscrews in primary stability and stability after 7 days under loading.
本研究旨在通过实验研究来测量俄罗斯设计的正畸微螺钉“Turbo”与其国外同类产品,即美国的“Vector Tas”和台湾的“BioRay”相比的稳定性。
每个制造商的四种自攻正畸微螺钉,即美国的“Vector Tas”(长度10毫米,直径2毫米)、台湾的“BioRay”(长度10毫米,直径2毫米)、俄罗斯的“Turbo”(长度9毫米,直径2毫米),共12颗,被植入本地猪下颌骨样本中。使用测力计(德国Zahoransky AG)和“Periotest”设备(德国“Periotest M”)通过扭矩来评估它们的稳定性。该实验在螺钉植入后立即在本地猪下颌骨样本中进行,并在以70°角加载7天后进行。
施加负载后,所有正畸微螺钉的扭矩值均降低,Periotest值均升高。
俄罗斯设计的正畸微螺钉“Turbo”在初始稳定性和加载7天后的稳定性方面略逊于“Vector Tas”微螺钉,优于“BioRay”微螺钉。