Panaite Tinela, Romanec Cristian Liviu, Iacob Mihnea, Balcos Carina, Savin Carmen, Olteanu Nicolae Daniel, Vieriu Raluca-Maria, Alice Chehab, Zetu Irina Nicoleta
Department of Oral and Maxillofacial Surgery, Faculty of Dental Medicine, "Grigore T. Popa" University of Medicine and Pharmacy, 16 Universitatii Str., 700115 Iasi, Romania.
Dent J (Basel). 2025 Feb 28;13(3):109. doi: 10.3390/dj13030109.
The stabilization disc (SD) for orthodontic mini-implants is a novel device designed to enhance anchorage stability and minimize the risk of mini-implant mobility. The disc features a flat structure with four prongs and is crafted from biocompatible materials such as titanium or stainless steel. It provides additional support to mini-implants by improving force distribution and reducing stress concentration around the insertion site. This study aims to evaluate the biomechanical performance of mini-implants with an SD compared to without-SD mini-implants, with a specific focus on their ability to maintain anchorage under orthodontic loading conditions. : A finite element analysis (FEA) model was created for a commercially available mini-implant (2.0 mm in diameter and 12 mm in length). The mandible's anatomical structure was reconstructed in 3D from computed tomography (CT) scans using SpaceClaim software 2023.1. To simulate real-world orthodontic conditions, forces of 10 N were applied at an angle of 30°. This retrospective study explores the role of SDs in enhancing mini-implant stability by reducing displacement and optimizing stress distribution. The evaluation included analyzing von Mises stress, cortical bone deformation, and mini-implant movement under simulated orthodontic loading. The results demonstrate that the SD significantly reduces maximum total displacements by over 41% and redistributes von Mises stresses more evenly across the mini-implant and surrounding bone. Cortical bone stress and deformation were reduced in cases utilizing the SD, indicating enhanced implant stability and durability. : The stabilization disc enhances mini-implant stability by improving stress distribution and reducing deformation without requiring permanent implant modifications. Its adaptability makes it a valuable solution for managing variable bone density and high orthodontic forces, offering a promising advancement in orthodontic anchorage.
正畸微型种植体稳定盘（SD）是一种新型装置，旨在增强支抗稳定性并将微型种植体移动的风险降至最低。该盘具有带四个尖头的扁平结构，由钛或不锈钢等生物相容性材料制成。它通过改善力的分布和减少植入部位周围的应力集中，为微型种植体提供额外的支撑。本研究旨在评估带有SD的微型种植体与不带SD的微型种植体的生物力学性能，特别关注它们在正畸加载条件下保持支抗的能力。：为一种市售微型种植体（直径2.0毫米，长度12毫米）创建了有限元分析（FEA）模型。使用SpaceClaim软件2023.1从计算机断层扫描（CT）扫描中三维重建下颌骨的解剖结构。为模拟实际正畸情况，以30°角施加10 N的力。这项回顾性研究探讨了SD通过减少位移和优化应力分布在增强微型种植体稳定性方面的作用。评估包括分析在模拟正畸加载下的von Mises应力、皮质骨变形和微型种植体移动。结果表明，SD显著降低了最大总位移超过41%，并使von Mises应力在微型种植体和周围骨之间更均匀地重新分布。在使用SD的情况下，皮质骨应力和变形降低，表明种植体稳定性和耐久性增强。：稳定盘通过改善应力分布和减少变形来增强微型种植体稳定性，而无需对种植体进行永久性修改。其适应性使其成为处理可变骨密度和高正畸力的有价值解决方案，为正畸支抗提供了有前景的进展。
