Implant insertion angle and depth: Peri-implant bone stress analysis by the finite element method

Rito-Macedo, Fabiano; Barroso-Oliveira, Millena; Paranhos, Luiz-Renato; Rodrigues-Brum, Joelson; Pereira-Lima, Igor-Felipe; Gomes-França, Fabiana-Mantovani; Brito-Junior, Rui-Barbosa de

doi:10.4317/jced.58930

Cited by 4 publications

(2 citation statements)

References 22 publications

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“… 35 A greater difference between the implant angle and the long axis angle of the tooth results in a greater stress value. 36 The results of this study showed that the mean long axis angle of the maxillary first premolars was significantly larger than that of the second premolars, as reported in a previous study. 3 The angle between the tooth axis and the alveolar bone axis is influenced by the root position, and buccally positioned teeth show the largest angulation.…”

Section: Discussionsupporting

confidence: 85%

Analysis of the root position and angulation of maxillary premolars in alveolar bone using cone-beam computed tomography

Jung

2022

Imaging Sci Dent

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Purpose This study investigated whether the relationship between the maxillary sinus and the root of the maxillary premolar is correlated with the root position and whether there is a difference in the long axis angle of premolars and the buccal bone thickness according to the sinus-root relationship and root position. Materials and Methods Cone-beam computed tomographic images of 587 maxillary first premolars and 580 second premolars from 303 patients were retrospectively reviewed. The maxillary sinus floor-root relationship was classified into 4 types, and the root position in the alveolar bone was evaluated as buccal, middle, or palatal. The long axis angle of the maxillary premolars in the alveolar bone and the buccal bone thickness were measured. The correlation between these parameters was analyzed. Results The maxillary sinus floor-root relationship showed a statistically significant correlation with the root position in the alveolar bone. Most maxillary first premolars were buccally located, and more than half of the second premolars had their roots in the middle. The long axis angle of the premolars was significantly larger in buccal-positioned teeth than in middle-positioned teeth, and the buccal bone was thinner. Conclusion When the root of the maxillary premolar was separated from the sinus floor, the premolar was often located on the buccal side. Most of the maxillary first premolars had a thinner buccal bone and larger inclination than the second premolars. It is recommended to evaluate the root position, sagittal angle and buccal bone thickness using CBCT for implant treatment planning.

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Section: Discussionsupporting

confidence: 85%

Analysis of the root position and angulation of maxillary premolars in alveolar bone using cone-beam computed tomography

Jung

2022

Imaging Sci Dent

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“…Factors such as the diameter and length of the implant, placement location, leftright angles, front-rear angles, Young's modulus of the cancellous bone, and thickness of the cortical bone can affect implants [23][24][25][26][27]. The effect and stability of each of these factors should be determined because they can introduce variations in the results such as osseointegration.…”

Section: Introductionmentioning

confidence: 99%

Toward Digital Twin Development for Implant Placement Planning Using a Parametric Reduced-Order Model

Ahn,

Kim,

Baek

et al. 2024

Bioengineering

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Real-time stress distribution data for implants and cortical bones can aid in determining appropriate implant placement plans and improving the post-placement success rate. This study aims to achieve these goals via a parametric reduced-order model (ROM) method based on stress distribution data obtained using finite element analysis. For the first time, the finite element analysis cases for six design variables related to implant placement were determined simultaneously via the design of experiments and a sensitivity analysis. The differences between the minimum and maximum stresses obtained for the six design variables confirm that the order of their influence is: Young’s modulus of the cancellous bone > implant thickness > front–rear angle > left–right angle > implant length. Subsequently, a one-dimensional (1-D) CAE solver was created using the ROM with the highest coefficient of determination and prognosis accuracy. The proposed 1-D CAE solver was loaded into the Ondemand3D program and used to implement a digital twin that can aid with dentists’ decision making by combining various tooth image data to evaluate and visualize the adequacy of the placement plan in real time. Because the proposed ROM method does not rely entirely on the doctor’s judgment, it ensures objectivity.

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Comparative analysis of oral fluid metabolism parameters between patients with complicated and uncomplicated implantation

Tlustenko,

Koshelev,

Tlustenko

et al. 2024

Russian Journal of Dentistry

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Relevance. Modern scientific research continues to develop promising areas for diagnosing inflammatory complications after dental implantation. Analysis of studies shows that inflammatory complications depend on many factors, the establishment of which can be challenging. In this regard, saliva diagnostics opens up broad prospects for studying the pathogenetic basis of the development of inflammatory processes. Key words: implantation, metabolic status, oral fluid, inflammatory process. Purpose: to study in a comparative aspect the metabolic status of complicated and uncomplicated implantation. Materials and methods of research. 88 patients were examined, of which 30 with peri-implant mucositis (main group I), 28 with uncomplicated implantation (comparison group II) and 30 control group, age 45.3±2.4 years, follow-up period 1-3 years. Results. Based on the results of the studies and comparative analysis of complicated and uncomplicated implantation, previously unknown data on their distinctive metabolic characteristics were obtained and presented. With complicated implantation, these include a characteristic increase in C-reactive protein, iron, uric acid and a decrease in calcium levels. Conclusions. A set of new information has been obtained that reveals prognostically significant factors of gastric cancer metabolism during complicated and uncomplicated implantation. The identified changes in metabolism during implantation must be taken into account and differentiated from early metabolic signs of inflammation. The study of gastric cancer is objective and promising in the diagnosis of the inflammatory process and its prognosis.

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Implant insertion angle and depth: Peri-implant bone stress analysis by the finite element method

Cited by 4 publications

References 22 publications

Analysis of the root position and angulation of maxillary premolars in alveolar bone using cone-beam computed tomography

Analysis of the root position and angulation of maxillary premolars in alveolar bone using cone-beam computed tomography

Toward Digital Twin Development for Implant Placement Planning Using a Parametric Reduced-Order Model

Comparative analysis of oral fluid metabolism parameters between patients with complicated and uncomplicated implantation

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