Comparison of root resorption between self-ligating and conventional brackets using cone-beam CT

Abstract

Abstract: PURPOSE: To analyze the differences of root resorption between passive self-ligating and conventional brackets, and to determine the relationship between passive self-ligating brackets and root resorption. METHODS: Fifty patients were randomly divided into 2 groups using passive self-ligating brackets or conventional straight wire brackets (0.022 system), respectively. Cone-beam CT was taken before and after treatment. The amount of external apical root resorption of maxillary incisors was measured on CBCT images. Student's t test was performed to analyze the differences of root apical resorption between the 2 groups with SPSS17.0 software package. RESULTS: No significant difference(P> 0.05) in root resorption of maxillary incisors was found between passive self-ligating brackets and conventional brackets. CONCLUSIONS: Passive self-ligating brackets and conventional brackets can cause root resorption, but the difference was not significant. Passive self-ligating brackets do not induce more root resorption.

Key words: Self-ligating brackets, Conventional brackets, External apical root resorption, Cone-beam CT

CLC Number:

R783.5

LIU Yun,GUO Hong-ming. Comparison of root resorption between self-ligating and conventional brackets using cone-beam CT[J]. Shanghai Journal of Stomatology, 2016, 25(2): 238-241.

References

Malmgren O, Levander E. Minimizing orthodontically induced root resorption//Graber T, Eliades T, Athanasiou AE. Risk management in orthodontics: experts'guide to malpractice . Chicago: Quintessence, 2004: 61-75.
Sameshima GT, Sinclair PM. Predicting and preventing root resorption: part I. Diagnostic factors . Am J Orthod Dentofacial Orthop, 2001,119(5): 505-510.
Lee RY, ?魧rtun J, Alonzo TA. Are dental anomalies risk factorsfor apical root resorption in orthodontic patients? Am J Orthod Dentofacial Orthop, 1999, 116(2): 187-195.
Brezniak N, Wasserstein A. Orthodontically induced inflammatory root resorption. Part Ⅱ: The clinical aspects . Angle Orthod, 2002,72(2): 180-184.
Segal GR, Schiffman PH, Tuncay OC. Meta analysis of thetreatment-related factors of external apical root resorption . Orthod Craniofac Res, 2004, 7(2): 71-78.
rtun J, Smale I, Behbehani F, et al. Apical root resorption six and twelve months after initiation of fixed orthodontic appliance therapy .Angle Orthod, 2005, 75(6): 919-926.
Mavragani M, Vergari A, Selliseth NJ, et al. A radiographic comparison of apical root resorption after orthodontic treatment with a standard edgewise and a straight-wire edgewise technique . Eur J Orthod, 2000, 22(6): 665-674.
Beck BW, Harris EF. Apical root resorption in orthodontically treated subjects: analysis of edgewise and light wire mechanics . Am J Orthod Dentofacial Orthop, 1994, 105(4):350-361.
Berger J, Byloff FK. The clinical efficiency of self-ligated brackets . J Clin Orthod, 2001, 35(5): 304-308.
Chen SS, Greenlee GM, Kim J, et al. Systematic review of self-ligating brackets . Am J Orthod Dentofacial Orthop, 2010, 137(6): 726.e1-726.e18.
Vajaria R, BeGole E, Kusnoto B, et al. Evaluation of incisor position and dental transverse dimensional changes using the Damon system . Angle Orthod, 2011, 81(4): 647-652.
Sameshima GT, Asgarifar KO. Assessment of root resorption and root shape: periapical vs panoramic films . Angle Orthod, 2001, 71(3): 185-189.
Marmulla R, W rtche R, Mühling J, et al. Geometric accuracy of the NewTom 9000 cone beam CT. Dentomaxillofac Radiol,2005, 34(1): 28-31.
Chan EK, Darendeliler MA, Petocz P, et al. A new method for volumetric measurement of orthodontically induced root resorption craters . Eur J Oral Sci, 2004, 112(2): 134-139.

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