Manikandan, N (2013) Effective En-Masse retraction of maxillary dentition with tuberosity mini-implant anchorage: A finite element analysis. Masters thesis, Ragas Dental College and Hospital, Chennai.
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Abstract
In the end of 90’s the adoption of mini-implants as anchorage allowed a paradigm change influencing even the way of thinking orthodontic mechanics. Currently, mini-screw implants or temporary anchorage devices TADs are considered versatile as it can be used clinically as an absolute source of anchorage. Recently, there has been revitalization for the en masse retraction of maxillary dentition which has various advantages over molar distalization followed by anterior retraction. Thus the entire maxillary dentition when distalized as a single unit with mini-implants as a source of anchorage using sliding mechanics would serve as a viable option in overcoming the adverse effects of distalizing appliances and provides better patient comfort. Since Modern medical imaging, modeling, and finite element (FE) analysis solutions can provide powerful tools for optimizing 3- dimensional morphology from radiographic scans and determining stress and deflection distributions for complex anatomic geometries is possible, thus the reactions of teeth and their supporting tissues on application of orthodontic forces would warrant to predict the clinical situation efficiently. Therefore the aim of the present study was to investigate effectiveness of 19 x 25-in stainless steel archwire with retraction hooks of various heights placed in a 0.022 x 0.028-in slot for en-masse retraction of maxillary dentition using tuberosity implants by finite element method.
| Item Type: | Thesis (Masters) |
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| Uncontrolled Keywords: | En- masse retraction; Absolute anchorage; Tuberosity implant, FEM. |
| Subjects: | DENTAL > Orthodontics and Dentofacial Orthopedics |
| Depositing User: | Subramani R |
| Date Deposited: | 04 Sep 2017 03:47 |
| Last Modified: | 12 Nov 2017 14:58 |
| URI: | http://repository-tnmgrmu.ac.in/id/eprint/2910 |
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