1-Ravindra N. Esthetics and Biomechanics in Orthodontics, 2nd ed. Elsevier;2015, pp 85,259,229.
2-Perinetti G, Paolantonio M, D’Attilio M, D’Archivio D, Tripodi D, Femminella B, et al. Alkaline phosphatase activity in gingival crevicular fluid during human orthodontic tooth movement. Am.J.Orthod.Dentofac.Orthop. 2002;122(5):548-56.
3-Insoft M, King GJ, Keeling SD. The measurement of acid and alkaline phosphatase in gingival reticular fluid during orthodontic tooth movement. Am.J.Orthod.Dentofac.Orthop. 1996;109(3):287-96.
4-Lamster IB, Harper DS, Goldstein S. The effect of sequential sampling on crevicular fluid volume and enzyme activity. J.Clin. Periodontol. 1989;16:252-8.
5-Rodan GA. Introduction to bone biology. Bone. 1991;13:53-56.
6-Loney JJ, Norton LA, Shafer DM. Orthodontic forces increase tumor necrosis factor alpha in the human gingival sulcus. Am.J. Orthod.Dentofac.Orthop. 1995;108(5):519-24.
7-Last KS, Donkin C, Embery G. Glycosaminoglycans in human gingival crevicular fluid during orthodontic movement. Arch. OralBiol. 1988.33.(12):901-12.
8-Griffiths GS, Moulson AM, Petrie A, James IT. Elevation of osteocalcin and peridinium crosslinks of bone collagen as markers of bone turnover in gingival crevicular fluid during different stages of orthodontic treatment. J.Clin.Periodontol. 1988;25: 492-98.
9-Grieve WG, Johnson GK, Moore RN, Reinhardt RA, DuBois LM. Prostaglandin E (PGE) and interleukin-1 beta (IL-1 beta) levels in gingival crevicular fluid during human orthodontic tooth movement. Am.J.Orthod.Dentofac.Orthop. 1994;105(4):369-74.
10-Uematsu S, Mogi M, Deguchi T. Interleukin (IL)-1 beta, IL6, tumor necrosis factor-alpha, epidermal growth factor ,and beta 2-microglobulin levels are elevated in gingival crevicular fluid during human orthodontic tooth movement. J.Dent. Res. 1996.75:562-7.
11-Lilja E, Lindskog S, Hammarstrom L. Histochemistry of enzyme associated with tissue degeneration incident to orthodontic tooth movement. Am.J.Orthod. 1983;83:62-75.
12-Isik F, Sayinsu K, Arun T, Unlucerci Y. Bone marker levels in gingival crevicular fluid during orthodontic intrusive tooth movement: A preliminary study. J.Contemp.Dent.Prac. 2005.6(2):027-35.
13-Alireza Omrani, Manouchehr Mesripoor, Raha Kowsari Isfahan, Arash Motaghi. Evaluation of specific activity of acid phosphatase in gingival crevicular fluid during orthodontic tooth movements: Journal of Isfahan Dental School 2011; 7(2): 114-121.
14-Binder T, Goodson J, Socransky S. Gingivl fluid levels of acid and alkaline phosphatase. J.Periodontol.Res. 1987;22:14-9.
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