| ORIGINAL ARTICLE |
|
| Year : 2015 | Volume
: 33
| Issue : 4 | Page : 302-306 |
Traumatic impact loading on human maxillary incisor: A Dynamic finite element analysis
K Jayasudha1, M Hemanth2, Raj Baswa3, HP Raghuveer4, B Vedavathi5, Chatura Hegde2
1 Department of Pedodontics and Preventive dentistry, Rajarajeswari Dental College and Hospital, Bengaluru, Karnataka, India
2 Department of Orthodontics and Dentofacial Orthopedics, Dayanand Sagar Dental College and Hospital, Bengaluru, Karnataka, India
3 Department of Orthodontics and Dentofacial Orthopedics, Narsinhbhai Patel Dental College, Visnagar, Gujarat, India
4 Department of Oral and Maxillofacial Surgery, Dayanand Sagar Dental College and Hospital, Bengaluru, Karnataka, India
5 Department of Conservative Dentistry, Dayanand Sagar Dental College and Hospital, Bengaluru, Karnataka, India
Correspondence Address:
Dr. K Jayasudha
Manish Homes, 9th Cross, 3D Main, JP Nagar First Phase, Bengaluru - 560 078, Karnataka
India
 Source of Support: None, Conflict of Interest: None  | Check |
DOI: 10.4103/0970-4388.165680
Background: The most vulnerable tooth is the maxillary incisor, which sustains 80% of dental injuries. Dynamic Finite element analysis is used to understand the biomechanics of fracture of maxillary incisor under traumatic impact loading. Aim: The aim was to investigate the stress patterns of an upper incisor in a three-dimensional (3D) model under traumatic impact loading in various directions. Materials and Methods: A 3D finite element model of the upper incisor and surrounding tissues was established. A sinusoidal force of 800N was applied over a period of 4 ms. Results: Software performs a series of calculations and mathematical equations and yields the simulation results. During the horizontal impact (F1), stresses were concentrated in the cervical area of the crown, reaching peak stress of 125 MPa at 2 ms. Conclusion: A horizontal force exerted on the labial surface of the tooth tends to cause cervical crown fractures, oblique crown root fractures, and oblique root fractures.
[FULL TEXT] [PDF]*
|
