Abstract
The objective of the present study was to specify an optimum force system for intrusion and extrusion of maxillary central incisor and to compare the effects of bracket positioning at different heights from the incisal edge in Labial Orthodontics (LaO) and Lingual Orthodontics (LiO). A mathematical model of maxillary central incisor with normal inclination was developed. Four cases of heights of bracket slot from incisal edge were considered both in LaO and LiO viz. 3mm, 4mm, 5mm and 6mm. Based on a mathematical model, an optimum force system consisting of an intrusive or extrusive force (F) and a moment (M) was devised and moment (M) to force (F) ratio (M:F ratio) was estimated in each case. Then, three-dimensional Computer Aided Design (CAD) models of incisor and surrounding structures were prepared. To validate an optimum force system, finite element analysis was carried out and force system with derived M:F ratio was applied in each case. In finite element analysis, results were shown in the form of vector graph of nodal displacements along with undeformed and deformed models. The desired intrusion or extrusion of incisor was observed. Thus, force system devised from a mathematical model was validated with finite element an...Continue Reading
References
Jul 1, 1977·American Journal of Orthodontics·C R Burstone
Nov 1, 1982·American Journal of Orthodontics·F D Lo, W S Hunter
Dec 19, 2007·Journal of Bioscience and Bioengineering·Rashmi V UddanwadikerHarshwardhan Arya
Mar 10, 2009·American Journal of Orthodontics and Dentofacial Orthopedics : Official Publication of the American Association of Orthodontists, Its Constituent Societies, and the American Board of Orthodontics·Wei LiangBaohua Xu
Oct 27, 2009·Journal of Oral and Maxillofacial Surgery : Official Journal of the American Association of Oral and Maxillofacial Surgeons·Marco A Brindis, Michael S Block
May 11, 2010·American Journal of Orthodontics and Dentofacial Orthopedics : Official Publication of the American Association of Orthodontists, Its Constituent Societies, and the American Board of Orthodontics·Teasoo KimMoonkyu Lee
Aug 21, 2012·Computers in Biology and Medicine·G ChenY Xiao
Oct 2, 2012·Progress in Orthodontics·Luca LombardoGiuseppe Siciliani
Aug 13, 2013·Computers in Biology and Medicine·Yan LiShaofeng Zhang
Oct 1, 2013·American Journal of Orthodontics and Dentofacial Orthopedics : Official Publication of the American Association of Orthodontists, Its Constituent Societies, and the American Board of Orthodontics·Luiz Antonio Borelli de BarrosLeopoldino Capelloza Filho
Jan 21, 2014·Acta Odontologica Scandinavica·Fidan Alakus Sabuncuoglu, Seyda Ersahan
Apr 9, 2014·Computer Methods in Biomechanics and Biomedical Engineering·Rui LiangWeidong Tian
Aug 3, 2014·American Journal of Orthodontics and Dentofacial Orthopedics : Official Publication of the American Association of Orthodontists, Its Constituent Societies, and the American Board of Orthodontics·Jun-ya TominagaNoriaki Yoshida
Sep 3, 2014·The Angle Orthodontist·Juan Pablo GomezCarlos Iván Cardona
Citations
Jul 24, 2018·The Angle Orthodontist·Yang Liu, Wei Hu
Mar 7, 2019·Scientific Reports·Chuanzi LiuTao Jiang
May 21, 2017·Bio-medical Materials and Engineering·Abhishek M ThoteSunita Shrivastava