1. Factors affecting the duration of orthodontic treatment: A systematic review;Mavreas D;Eur J Orthod,2008
2. Tooth extractions in orthodontics: First or second premolars?;Araújo TM;Dent Press J Orthod,2019
3. Orthodontic treatment time: can it be shortened?;Moresca R;Dent Press J Orthod,2019
4. Understanding the basis of space closure in Orthodontics for a more efficient orthodontic treatment;Ribeiro GLU;Dent Press J Orthod,2016
5. Sreenivasagan S, Kumar AS, Varghese RM, Rengalakshmi S. Assessment of type of retraction mechanics commonly chosen by orthodontic residents. Eur. J. Mol. Clin. Med. 2020;7(1):1068–74. Available at: https://ejmcm.com/article_2272.html%0Ahttp://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=reference&D=emed21&NEWS=N&AN=2010164692.