Comparison of Different Methods Used for Maxillary Molars Distalization with Temporary Anchorage Devices (TADs)in different positions: A Finite Element Analysis (FEM)

Abstract

The purpose of this study wasto comparedifferent methods used for maxillary molars distalization with Temporary Anchorage Devices (TADs) with a Finite Element Analysis (FEM) method.Materials & Methods:In this study, three different finite element models were constructed torepresent three different methods of distalization. In model 1,a mini screw was inserted in the midpalatal area and used as a skeletal anchorage forthe distal movement of the first and second maxillary molars. Model 2 was designedbased on the insertion of mini screw in the buccalarea. In model 3,apalatal plate was used for molar distalization.Results:In model 1 and model 2, distal movement of both molars occurred, but in model 3, some mesial movement was seen in buccal cusp ofthefirst molar and both cuspsof the second molar.Maximum distalization ofthefirst and second molar occurred in model 2.Conclusion:Minimum bacculingual movement was seen in model 1. Maximum distalization and mesiodistal tipping of the first and second molar occurred in model 2

Keywords

• bone screw
• finite element analysis
• anchorage