Evaluation of initial displacement and stresses in the maxillary dentition following en masse retraction using fixed lingual appliance and micro-implants: A finite element analysis

A Three-Dimensional Finite Element Analysis: Maxillary Dentition Distalization with the Aid of Microimplant in Lingual Orthodontics

“…This is roughly consistent with the results of previous studies. 5,15,16 Some scholars have also conducted research on the position of the traction hook. Through finite element analysis, Feng believes that the traction hook placed in the distal canine is not conducive to the control of the anterior torque and the width of the dental arch.…”

“…[1][2][3] The position and angle of the upper and lower anterior teeth play an important role in the beauty of the face, the normal function of the oral and maxillofacial system and the stability of orthodontics, thus becoming the focus of patients and doctors. 4,5 Therefore, it is necessary to determine the reasonable position and angle of the upper anterior teeth when developing the orthodontic plan; further, the movement mode of the upper anterior teeth in the orthodontic process is designed based on this. 6 Because of the location of bracket, the biomechanics of lingual orthodontics are quite different from those of labial orthodontics.…”

“…6 Because of the location of bracket, the biomechanics of lingual orthodontics are quite different from those of labial orthodontics. 5 It has been reported that the platform switching configuration led not only to a relative decrease in stress levels compared to narrow and wide standard configurations, but also to a notable stress field shift from bone towards the implant system, potentially resulting in lower crestal bone overloading. 7 In this work, we analyze the biomechanical mechanism by which combined lingual orthodontics and mini-implant anchorage affect the position of the upper anterior teeth under overall adduction of upper dentition when the height of power-arm and the point of force application are different.…”