Influence of bone density, screw size and surgical procedure on orthodontic mini-implant placement – part B: implant stability

This in vitro study aimed to investigate the influence of bone density, implant size, and surgical procedure on the primary stability (PS) of orthodontic mini-implants (OMIs). In total, 640 OMIs of various sizes (2.0 × 7, 2.3 × 7, 2.0 × 11 and 2.3 × 11 mm) were inserted in the artificial bone of different densities (D1–D4). Placement was performed with an insertion angle of 90° or 60° to the bone surface and in 320 cases without predrilling, which resulted in 64 groups. PS was measured on the basis of im plant stability quotient (ISQ) and insertion torque (IT).

Source: International Journal of Oral and Maxillofacial Surgery - July 22, 2020 Category: ENT & OMF Authors: S.C. M öhlhenrich, N. Heussen, A. Modabber, A. Bock, F. Hölzle, B. Wilmes, G. Danesh, J. Szalma Tags: Research Paper Source Type: research