1[1]Shafer WG. Hine MK,Levi Bm. A textbook of oral pathology. 4th ed. Philadelphia:WB Saunders. 1983:328-32.
2[2]Stenvik A, Mjor IA. Pulp and dentin reactions to experimental tooth intrusion Am J Orthod 1970: 57: 370-85.
3[3]Rudolph CE. An evaluation of root resorption occurring during orthodontic treatment. J Dent Res 1940:19:367-71.
4[4]Rosenberg HN. An evaluation of the incidenee and amount of apical root resorption and dilaceration occurring in orthodontieally treated teeth, having incompletely formed roots at the beginning of Beeg treatment. Am J Orthod 1972: 61: 524-5.
5[5]Levander E, Malmgren O. Evaluation of the risk of root resorption during orthodontic treatment: a study of upper incisors. Eur J Orthod 1988:10:30-8.
6[6]Linge BO. Linge L. Apical root resorption in upper anterior teeth. Eur J Orthod 1983:5:173-83.
7[7]Rudolph CE. A comparative study in root resorption in permanent teeth. J Am Dent Assoc 1936: 23:822-6.
8[8]Reitan K. Biomechanical principles and reactions of orthodontics current principles and techniques. 4th ed. St. Louis: CV Mosby,1985:101-92.
9[9]Tronstad L. Root resorption-a multidisciplinary problem in dentistry biological mechanisms of tooth eruption and root resorption. 2nd ed. Davidovitch:WB Saunder,1998:293-302.
10[10]Harris EF, Buter ML. Patterns of incisor root resorption before and after orthodontic correction in cases with anterior. Am J Orthod Dentofac Orthop 1992:101:112-9.
2Graber TM.Orthodonties:principles and practice.3 rd ed.Philadelphia:W.B.Saunders Co.,2001.331-348.
3Rajab LD,Hamdan MA.Supernumerary teeth:review of the literatune and a survey of 152 cases.Int J Paediatr Dent,2002,12(4):244-254.
4Hattab FN,Yassin OM,Rawashdeh MA.Supernumerary teeth:report of three cases and review of the literature.J Dent Child,1994,61:382-393.
5Ohman I,Ohman A.The eruption tendency and changes of direction of impacted teeth following surgical exposure.Oral Surg Oral Med Oral Pathol,1980,49:383-389.