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Volume 9 Issue 5 (May, 2021)

Original Articles

Stability & anchorage of different mini implants-an original research
Dr Abhishek Shankar, Dr. Hitesh Ramdas Sawant, Dr. Sai Santosh Patnaik J, Dr. Heena Tiwari, Dr Rummaan Ahmed Sheikh, Dr Rizwa Syed

Introduction: Skeletal anchorage with mini-implants has greatly broadened the treatment possibilities in surgery and orthodontics recently. To lower implant failure, it is wise to obtain satisfactory primary stability. The aim of this study was to quantitatively examine the impact of implant design and dimension on primary stability. Material and Methods: Forty-two iliac bone of porcine were made and embedded in resin. To assess the primary stability, we recognized insertion torques of the following miniimplants: Aarhus Screw, AbsoAnchor®, LOMAS, Micro-AnchorageSystem, ORLUS and Spider Screw®. In each bone, five Dual Top™ Screws were implanted for reference purposes to achieve comparability among the specimens. Results: We noted widespread variation in insertion torques and therefore primary stability, depending on mini-implant design and dimension; the great impact that mini-implant diameter has on insertion torques was mainly conspicuous. Conical mini-implants achieved higher primary stabilities than cylindrical designs. Conclusions: The diameter and design of the mini-implant thread have a characteristic impact on primary stability. Dependent on the region of insertion and local bone quality, the choice of the mini-implant design and size is crucial to establish sufficient primary stability.

 
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