Summary:

Objectives > Apical root resorption and alveolar bone loss are potential complications associated with orthodontic treatment. This study aimed to assess apical root resorption and alveolar boneheight following orthodontic treatment of moderate crowding with labial vs. lingual fixed appliances using CBCT imaging.
Subjects and methods > All patients meeting the eligibility criteria were included from March 2022 to June 2022 at the University of Damascus Faculty of Dentistry, Department of Orthodontics.
The study involved patients diagnosed with Class I malocclusion and moderate crowding in both arches that could be treated on a non-extraction basis. Participants were randomly divided into two groups. One group was treated using lingual appliances (DTC® IN-Tendo JK-SL, DTC Medical Apparatus Co., Hangzhou, China) with a 0.018-inch slot. The sequence of archwires used included 0.012″, 0.014 0.016″ nickel-titanium,  0.016″x  0.022″ TMA, 0.016″x0.022″ stainless steel,and 0.017″x 0.025″ stainless steel. The other group received treatment with labial straight-wire appliances (AO Mini Master® – MBT System, metal brackets, Sheboygan, WI, USA) also featuring a 0.018-inch slot. The sequence of archwires used was 0.012″, 0.014″, 0.016″ nickel-titanium 0.016″x 0.022″ nickel-titanium, 0.016 and 0.017″ x 0.025″ stainless steel. The CBCT images were taken before the commencement of treatment (T0) and one day following the end of treatment (T1). The apical root resorption and alveolar bone height of the upper and lower teeth

Keywords :

Lingual appliances, Apical root resorption,Alveolar bone height, Crowding, CBCT

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