Evaluation of the stress generation on the cortical bone and the palatal micro-implant complex during the implant-supported en masse retraction in lingual orthodontic technique using the FEM: Original research
Open accessAbstract
Background. This study aimed to evaluate and analyze the distribution of stresses on the palatal micro-implants and the cortical bone at the micro-implant site with optimal orthodontic retraction force in lingual orthodontics. Methods. ANSYS 12.1 software was used to construct the finite element model of the maxillary bone, teeth and the periodontal ligament along with the lingual bracket set-up with wire and the micro-implant. Six- and 8-mm micro-implants were constructed. The final model consisted of 99190 nodes and 324364 elements. A 200-gram of retraction force was applied from the micro-implant to the anterior retraction hook. The micro-implant was embedded between the second premolar and the first molar. Hyper-view software was used to get the results in X-Y-Z dimensions. Results. The maximum von Mises stresses detected were 52.543 MPa for 6-mm micro-implant and 54.489 MPa for 8-mm micro-implant. Maximum stress was at the neck of the micro-implant. The 8-mm implant model showed 6×10-3 mm of lingual displacement. The least displacement of 1×10-3 mm was noticed for both the implant models in the apico-occlusal direction. The maximum von Mises stresses in the cortical bone at the micro-implant site was 18.875 MPa for 6-mm micro-implant and 21.551 MPa for 8-mm micro-implant. Conclusion. Six-mm micro-implant can be the choice for the implant-supported lingual orthodontic retraction as it produced minimal stresses on the cortical bone, and the initial stress displacements produced on the micro-implant were also minimal.
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The attributes of linear, homogeneous, continuous, isotropic materials and a semicontrolled mesh with high-order tetrahedral elements are commonly used in biomodelling and numerical analysis on biological tissues and organs.
“All these attributes are commonly used when performing biomodelling and numerical analysis on biological tissues and organs [22, 37, 43–50].”
From Numerical Analysis of the ACL, with Sprains of Different Degrees after Trauma (2021) · cites this paper as [50]
The Discussion (page unavailable) says that, as in previous finite-element studies, the authors modeled cortical bone as isotropic, homogeneous, and linearly elastic. The Methods (page unavailable) describe four-noded tetrahedral elements, not the claimed high-order elements, and do not identify the mesh as semicontrolled. The paper does not establish that all these attributes are commonly used across biological tissues and organs. (LLM, conf=0.85)
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Numerical Analysis of the ACL, with Sprains of Different Degrees after Trauma
Marquet-Rivera, R. A., Urriolagoitia-Sosa, G., Romero-Ángeles, B., Hernández-Vázquez, R. A., Mastache-Miranda, O. A., Cruz-López, S., Torres-Yáñez, A., & Urriolagoitia-Calderón, G. (2021) · Computational and Mathematical Methods in Medicine · doi:10.1155/2021/2109348 · Cited by 5 · see citing works
Hernández-Vázquez, R. A., Marquet-Rivera, R. A., Mastache-Miranda, O. A., Vázquez-López, A. J., Cruz-López, S., & Vázquez-Feijoo, J. A. (2021) · Applied Bionics and Biomechanics · doi:10.1155/2021/6658039 · Cited by 4 · see citing works
- Authors
- Shyagali, T. R., & Aghera, D.
- Affiliations
- Professor and Head, Department of Orthodontics and Dentofacial Orthopedics, Hitkarini Dental College and Hospital, Jabalpur, India
- Private practitioner, Rajkot, India
- Corresponding author
- Aghera, Dhaval
- Venue
- Journal of Dental Research Dental Clinics Dental Prospects
- Publisher
- Maad Rayan Publishing Company
- Published
- 2019-12-05
- Volume
- 13
- Issue
- 3
- Pages
- 192-199
- ISSN
- 2008-210X (ISSN-L)
- 2008-2118
- PMC
- PMC6904918
- OpenAlex
- W2982901670
- Cited by
- 4
- References
- 32
- Citations by year
- 2021: 3 · 2020: 1
- FWCI
- 1.17
- Type
- journal article
- Language
- en
- Open access
- diamond
- doi.org
- Licence
- cc-by
- Locations
- Journal of Dental Research Dental Clinics Dental Prospects (publishedVersion, cc-by)
- Europe PMC (PubMed Central) (publishedVersion, cc-by)
- PubMed Central (publishedVersion, cc-by)
- PubMed (publishedVersion)
- DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
- Topics
- Health Sciences › Dentistry › Orthodontics › Orthodontics and Dentofacial Orthopedics
- Health Sciences › Dentistry › Orthodontics › Dental materials and restorations
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › dental development and anomalies
- Keywords
- en-masse retraction, cortical bone stress, von Mises stress, maxillary bone, periodontal ligament, finite element model
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