Open AccessRelationship between the angulation of temporary anchoring devices and their displacement. Experimental study
Author(s) -
AB Piacenza,
GD Peralta,
Rocamundi,
VB Fumero,
A Bas-Pluer
Publication year - 2021
Publication title -
revista de la facultad de odontología
Language(s) - English
Resource type - Journals
eISSN - 2545-7594
pISSN - 0325-1071
DOI - 10.25014/revfacodont271.2021.31.1.10
Subject(s) - calipers , perpendicular , displacement (psychology) , anchoring , implant , tibia , orthodontics , materials science , biomedical engineering , anatomy , mathematics , medicine , surgery , geometry , structural engineering , psychology , engineering , psychotherapist
The purpose of this study is to assess how the insertion angle influence the stability mini-implant when loaded with 200cNe in this study, 2mini-screws were implanted in male rabbits’ (n=25) tibia in a 6weeks interval between the firstone and the second one. The second mini-implants were placed at different angles with respect to the cortical bone: -20° in the direction of the force e (GroupI), perpendicular to the force (GroupII) and 30° in the opposite direction of the force (GroupIII). These experimental implants were immediately loaded (right tibias). The Tad`s on the left tibias were regarded as control. The animals were sacrificed six weeks after the first surgery. Linear distances between the two Tad`s were measured with a digital caliper at the time of placement, and after the sacrifice, then were compared. The displacements were: GroupI, 2.96mm ±1.05; GroupII, 0.27mm ±0.36; and GroupIII, 0.29 mm ±0.26. The controls remained. The values for the micro-implants of GroupI showed statistically significant differences (p≤0.05) compared to GroupsII y III. Based on these data, we can conclude that mini-implants inclined towards the direction of the force applied induce more displacement than the ones placed perpendicular to theforce or in the opposite direction of the force