Biomechanical adaptation of orthodontic tooth movement

Lee,  Syng-Ill

J Korean Dent Assoc > Volume 51(3); 2013 > Article

The Journal of The Korean Dental Association 2013;51(3):138-147.
Published online March 31, 2013.

임상가를 위한 특집 2 - 교정력에 의한 치아이동과 Biomechanical adaptation

이승일

연세대학교 치과대학.치의학전문대학원

Biomechanical adaptation of orthodontic tooth movement

Syng-Ill Lee

Department of Oral Biology, Yonsei University College of Dentistry.School of Dentistry

Abstract

Orthodontic tooth movement is a unique process which tooth, solid material is moving into hard tissue, bone. Orthodontic force in general provides the strain to the PDL and alveolar bone, which in turn generates the interstitial fluid flow(in detail, fluid flow in PDL and canaliculi). As a results of matrix strain, periodontal ligament cells and bone cells are deformed, releasing variety of cytokines, chemokines, and growth factors. These molecules lead to the orthodontic tooth movement(OTM). In these inflammation and tissue remodeling sites, all of the cells could closely communicate with one another, flowing the information for tissue remodeling. To accelerate the rate of OTM in future, local injection of single growth factor(GF) or a combination of multiple GFs in the periodontal tissues might intervene to stimulate the rate of OTM. Corticotomy is effective and safe to accelerate OTM.

Key Words: orthodontic force;fluid flow;strain;cytokine;chemokine;growth factor;orthodontic tooth movement (OTM);