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Study of the Stress Distribution Around the Mini-implant During Maxillary Anterior Intrusion Under Different Conditions: A 3-Dimensional Finite Element Analysis
| Content Provider | SAGE Publishing |
|---|---|
| Author | Thakkar, Udita Patil, Neeraj S. Thakkar, Ajay P. Chitko, Shrikant S. Jaltare, Pratik |
| Copyright Year | 2020 |
| Abstract | Introduction: Correction of deep bite is one of the major challenges of orthodontic treatment. Mini-implants provide stable intra-oral anchorage and facilitate the maxillary incisors to be intruded without the usual side. The purpose of this finite element study was to evaluate the stress distribution around the mini-implant during maxillary anterior intrusion under different conditions of different angulations and different positions of implant.Material and Methods: Finite element analysis was carried out. Stress under the following 4 conditions was analyzed: (a) single central implant placed at 90°, (b) single central implant placed at 120°, (c) bilaterally placed implant at 90°, and (d) bilaterally placed implant at 120°.Results: The displacement seen with 90° angulation in the single implant case is less compared with the 120° angulation case for all the 6 maxillary anterior teeth. Also, in the bilateral implant case, the Von Mises stress is less when the 90° angulation case is compared to 120° angulation case. But in bilaterally placed implant, the stress gets distributed evenly in the anterior region. The stress in 90° angulation cases seems to be concentrated at the center.Conclusion: Stresses measured on the teeth are less and distributed more evenly when the point of force application is bilateral. It was also observed that the stress increases with increase in the angulation of the implant. As the contact between the implant and the bone increases, the stability increases. Hence, the implant should be obliquely inserted into the bone. Concentrated stresses are not favorable as they can increase the risk of bone and root resorption. |
| Related Links | https://journals.sagepub.com/doi/pdf/10.1177/0301574219896027?download=true |
| Starting Page | 106 |
| Ending Page | 114 |
| Page Count | 9 |
| ISSN | 03015742 |
| Issue Number | 2 |
| Volume Number | 54 |
| Journal | Journal of Indian Orthodontic Society (JIO) |
| e-ISSN | 09749098 |
| DOI | 10.1177/0301574219896027 |
| Language | English |
| Publisher | Sage Publications India |
| Publisher Date | 2020-03-27 |
| Publisher Place | New Delhi |
| Access Restriction | Open |
| Rights Holder | © 2020 Indian Orthodontic Society |
| Subject Keyword | FEM anterior intrusion Deep bite mini-implants |
| Content Type | Text |
| Resource Type | Article |
