ANALYSIS OF THE STRESS-STRAINED STATE IN THE BONE AND THE IMPLANT--BONE INTERFACE DEPENDING ON THE DIAMETER, LENGTH, ANGLE OF THE IMPLANT AND DIRECTION OF APPLICATION OF FORCE
Abstract and keywords
Abstract (English):
Introduction. This article presents the results of mathematical modeling of the stress-strain state in the bone tissue surrounding the implant and the implant-bone connection depending on the diameter and length of the implant in the case of different directions of force application and the implant-bone implant installation angle. Target. To study the effect of the diameter, length of the implant and the load angle on the stress fields in a three-dimensional implant-bone system with finite elements and determine the effect of the load angle on the stress fields with a change in diameter and length. Materials and methods. To study the distribution and analysis of the stress-strain state in the bone tissue around implants of different diameters and lengths during dental implantation, a three-dimensional finite element model of the lower jaw was created. Three models were developed using computed tomography and the Universal Surgical Integration System software. Results. In all cases studied, the maximum stresses were achieved in the cortical bone due to its greater rigidity. However, since cortical and cancellous bone have different strength characteristics, it was necessary to consider the stress in these areas separately. In the cortical bone, the maximum stresses were always reached near the edge of the hole and the contact with the implant, respectively. In cancellous bone, in many cases, the maximum stresses were noted in the region of the implant apex. At the same time, when the implant is placed at an angle or in the buccolingual direction of load application, the stresses are redistributed in favor of the cancellous bone. Findings. Thus, in general, it can be concluded that an increase in the length and diameter of the implant leads to a noticeable decrease in stresses in the bone tissue surrounding the implant and in the implant-bone junction. The obtained results demonstrated that implants of small diameter and length, installed in the jawbone at an oblique loading angle, are the least favorable option for stress distribution at the implant-bone interface.

Keywords:
dental implantation , mathematical modeling, stress-strain state, implant, diameter, length, equivalent stresses, load direction
References

1. Grishin P.O., Mamaeva E.V., Kalinnikova E.F. i dr. Vliyanie mikrostruktury poverhnosti, konstruktivnyh i razmernyh osobennostey dental'nyh implantatov na ih stabil'nost' i process osteointegracii pri provedenii neposredstvennoy i otsrochennoy implantacii. Dental'naya implantologiya i hirurgiya. 2021;2(43). [P.O. Grishin, E.V. Mamaeva, E.F. Kalinnikova et al. Influence of surface microstructure, design and dimensional features of dental implants on their stability and osseointegration process during direct and delayed implantation. Dental Implantology and Surgery. 2021;2(43). (In Russ.)]. https://www.elibrary.ru/item.asp?id=47294872

2. Macary C., Menhali A., Zammarie C. et al. Primary stability optimization by using fixtures with different thread depth loading implants // Materia (Basel). - 2019;27(12):398-411. https://pubmed.ncbi.nlm.nih.gov/31357620/

3. Gaetano Maremzi, Glanrico Spangnuolo, Jone Amilla Sammartino et al. Micro-scae surface patterning of titanium dental implants by anodization in the presence of modifying // Materials (Basel). - 2019;12(11):1753-1764. https://pubmed.ncbi.nlm.nih.gov/31151141/

4. Luca Florillo, Marco Cicciu, Cesare D’ Amico. et al. Finite element method and von mises investigation on bone response to dynamic stress with a novel conical dental implant connection // Implant Dentistry: New Materials and Technologies. - 2020;10:1155-1168. https://pubmed.ncbi.nlm.nih.gov/33102577/

5. Tomar G.K. Evaluation of stress patterms in bone around dental implant and interface implant-bone for different diameter and long. A finite element analysis // Clin Oral Implants Res. - 2020;1:16-23. https://pubmed.ncbi.nlm.nih.gov/24163552/

6. David Farronato, Mattia Manfredini, Andrea Stevanello et al. A comparative 3D finite element computational study of three connections // Materials (Basel). - 2019;26;12(19):3135-3141. https://pubmed.ncbi.nlm.nih.gov/31561421/

7. Rizzo R., Quaranta A., De Paoli et al. Three-dimensional bone augmentation and immediate implant placement via transcrestal sinus lift // J Periodontics Restorative Dent. - 2018;38(1):95-101. https://pubmed.ncbi.nlm.nih.gov/29641633/

8. Luigi Paracchini, Christan Barbieri, Mattia Redaelli et al. Finite element analysis of a new dental design optimized for the desirable stress distribution in surrounding done region // Prosthesis. - 2020;2(3):225-236. https://www.mdpi.com/2673-1592/2/3/19

9. Hussein F.A., Sallomi K.N., Abdulrahman B.Y. et al. Effect of thread depth and implant shape on stress distribution in anterior and posterior regions of mandible bone: a Finite element analysis // Dent Res J. - 2019;16:200-207. https://pubmed.ncbi.nlm.nih.gov/31040877/

10. Erdem Kilic, Ozge Doganay Evalution of stress in tilted implant concept with variable diameters in the atrophic mandible: Three-dimensional finite element analysis // J Oral Implantol. - 2020;46(1):19-26. https://pubmed.ncbi.nlm.nih.gov/31647683/

11. Jeong-Gyo Seo, Jin-Hyun Cho. Clinical outcomes of rigin and non - rigin telescopic dowble-crown-retained removable dental prostheses: an analytical review // J Adv Prosthodont. - 2020;12(1):38-48. https://pubmed.ncbi.nlm.nih.gov/32128085/

12. Maolin Shi, Honqyou Li, Xiaomei Liu. Multidisciplinary design optimization of dental implant based on finite element method and surrogate models // Journal of Mechanical Science and Technology. - 2017;18;31:5067-5073. https://www.semanticscholar.org/paper/Multidisciplinary-design-optimization-of-dental-on-Shi-Li/7c8c0dfd6f306dd1f35c01c484dc2b7e39944513

13. Panahov N.A.O., Mahmudov T.G.O. Uroven' stabil'nosti zubnyh implantatov v razlichnye sroki funkcionirovaniya. Problemy stomatologii. 2018;14(1):89-93. [N.A.O. Panahov, T.G.O. Makhmudov. The level of stability of dental implants in different periods of functioning. Actual problems in Dentistry. 2018;14(1):89-93. (In Russ.)]. https://www.elibrary.ru/item.asp?id=32840697


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