Experimental quantification of the mechanical forces and moments applied on three adjacent orthodontic brackets

Issue title: Selected papers from the 6th China–France International Symposium “Stem Cells and Regenerative Medicine” and the first meeting of the France–China International CNRS Network (GDRI) CeSMeR, Nancy, 10–13 July 2016

Guest editors: J.-F. Stoltz, J. Magdalou and D. Bensoussan

Article type: Research Article

Authors: Wagner, Delphine^{a; b} | Bolender, Yves^b | Rémond, Yves^a | George, Daniel^{a; *}

Affiliations: [a] Laboratoire ICube, Université de Strasbourg, CNRS, Strasbourg, France | [b] Faculté de chirurgie dentaire, UF 8602, Strasbourg, France

Correspondence: [*] Corresponding author. E-mail: george@unistra.fr.

Abstract: Orthodontic appliances deliver forces and moments that will determine movement of teeth. To analyze this latter, we developed an experimental setup to measure the mechanical forces applied on the teeth and to calculate, through a simplified theoretical analysis, the reactive forces and corresponding moments onto the brackets of three adjacent teeth. To validate the theoretical and experimental results, we use a simplified clinical situation of a maxillary canine in infraclusion and surrounded by its corresponding upper lateral incisor and first premolar. Forces are then measured experimentally and compared with the calculated results. From this, we show the specific dissymmetry of the mechanical forces on each side of the maxillary canine due to the applied mechanical forces and the undesirable induced generated moments occurring on each tooth that will directly impact the bone remodeling process and the final tooth repositioning.

Keywords: Orthodontics, dental arch, periodontium, bone remodeling

DOI: 10.3233/BME-171639

Journal: Bio-Medical Materials and Engineering, vol. 28, no. s1, pp. S179-S184, 2017