Effect of peri-implantitis associated horizontal bone loss on stress distribution around dental implants – A 3D finite element analysis

Gupta, Shipra; Goyal, Parveen; Jain, Ashish; Chopra, Priyanka

doi:10.1016/j.matpr.2020.04.831

Cited by 8 publications

(7 citation statements)

References 20 publications

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“…Furthermore, previous studies have generally considered only a static masticatory load, [37,[74][75][76][77][78][79][80][81][82]. However, in addition to static load, the current study considered quasistatic and dynamic loading rates.…”

Section: Discussionmentioning

confidence: 99%

Three-Dimensional Finite Element Investigation into Effects of Implant Thread Design and Loading Rate on Stress Distribution in Dental Implants and Anisotropic Bone

Alemayehu

Jeng

2021

Materials

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Variations in the implant thread shape and occlusal load behavior may result in significant changes in the biological and mechanical properties of dental implants and surrounding bone tissue. Most previous studies consider a single implant thread design, an isotropic bone structure, and a static occlusal load. However, the effects of different thread designs, bone material properties, and loading conditions are important concerns in clinical practice. Accordingly, the present study performs Finite Element Analysis (FEA) simulations to investigate the static, quasi-static and dynamic response of the implant and implanted bone material under various thread designs and occlusal loading directions (buccal-lingual, mesiodistal and apical). The simulations focus specifically on the von Mises stress, displacement, shear stress, compressive stress, and tensile stress within the implant and the surrounding bone. The results show that the thread design and occlusal loading rate have a significant effect on the stress distribution and deformation of the implant and bone structure during clinical applications. Overall, the results provide a useful insight into the design of enhanced dental implants for an improved load transfer efficiency and success rate.

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Section: Discussionmentioning

confidence: 99%

Three-Dimensional Finite Element Investigation into Effects of Implant Thread Design and Loading Rate on Stress Distribution in Dental Implants and Anisotropic Bone

Alemayehu

Jeng

2021

Materials

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show abstract

“…In addition to bone strain, it was observed with FEA that, regardless the implant system, Von-Misses stress in the implant and in the screw was higher when there is a bone loss situation, which corroborates with previous studies that have evaluated bone loss in dental implants. [33][34][35] When evaluating the screws, it is possible to observe a high stress concentration in the screw neck in all groups. This finding can indicate loosening or even fracture of these screws similarly between Morse taper and external hexagon systems.…”

Section: Discussionmentioning

confidence: 99%

“…This behavior was exactly what occurred with both implant systems in the present study, showing that both areas will be affected by the new fulcrum position formed in implant/bone lever. 35,36 The micro strain results were calculated by strain gauges. This method is based on the principle of electrical conductivity, considering terminals that have active areas of 3mm 2 , which will accurately measure the strain.…”

Section: Discussionmentioning

confidence: 99%

The effect of different bone level and prosthetic connection on the biomechanical response of unitary implants: Strain gauge and finite element analyses

Datte¹,

Rodrigues²,

Datte³

et al. 2021

IJAERS

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Different prosthetic connections have emerged for better aesthetic and biomechanical performance to prevent peri-implant bone loss. The finite elements analysis and the strain gauge methodologies were used for the numerical analysis of the generated stress and the microstrain around the implants and their connections. Two implant models with the same length (13 x 3.75 mm) were analyzed according to the prosthetic connection: external hexagon or morse Taper. Both abutments received screw-retained metallic crowns in chromium-cobalt. The peri-implant tissue was simulated using polyurethane resin in two different heights (bone level and 5 mm of bone loss). A load of 300 N was applied on the occlusal surface. The results were analyzed in terms of von-Mises stress and micro strain. Samples identical to the numerical models were made for the Strain Gauge (SG) analysis; four SGs were bonded around the implant to obtain micro strain results. Finite element analysis and strain gauge corroborated in terms of similar mechanical response. Thus, there is no difference regarding the prosthetic connection for the generated stress and strain under axial load. However, bone loss increased the stress and strain magnitude for both prosthetic connections. In conclusion, both evaluated implant connections present similar biomechanical behavior regardless the bone height.Implants with internal conical connections (Morse Taper) have been associated with bone crest maintaining, avoiding screws loosening and fracture.

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“…However, most previous studies did not consider the crown and abutment screw components of the prosthetic [34,69,71,72], and hence the clinical application of the FEA findings is somewhat limited. Furthermore, previous studies have generally considered only a static masticatory load, [34,[73][74][75][76][77][78][79][80][81]. However, in addition to static load, the current study considered quasi-static and dynamic loading rates.…”

Section: Discussionmentioning

confidence: 99%

Three-Dimensional Finite Element Investigation Into Effects of Implant Thread Design and Loading Rate on Stress Distribution in Dental Implants and Anisotropic Bone

Alemayehu¹,

Jeng²

2021

Preprint

View full text Add to dashboard Cite

Variations in the implant thread shape and occlusal load behavior may result in significant changes in the biological and mechanical properties of dental implants and surrounding bone tissue. Most previous studies consider a single implant thread design, an isotropic bone structure, and a static occlusal load. However, the effects of different thread designs, bone material properties, and loading conditions are important concerns in clinical practice. Accordingly, the present study performs Finite Element Analysis (FEA) simulations to investigate the static, quasi-static and dynamic response of the implant and implanted bone material under various thread designs and occlusal loading directions (buccal-lingual, mesiodistal and apical). The simulations focus specifically on the von Mises stress, displacement, shear stress, compressive stress and tensile stress within the implant and the surrounding bone. The results show that the thread design and occlusal loading rate have a significant effect on the stress distribution and deformation of the implant and bone structure during clinical applications. Overall, the results provide a useful insight into the design of enhanced dental implants for an improved load transfer efficiency and success rate.

show abstract

Effect of peri-implantitis associated horizontal bone loss on stress distribution around dental implants – A 3D finite element analysis

Cited by 8 publications

References 20 publications

Three-Dimensional Finite Element Investigation into Effects of Implant Thread Design and Loading Rate on Stress Distribution in Dental Implants and Anisotropic Bone

Three-Dimensional Finite Element Investigation into Effects of Implant Thread Design and Loading Rate on Stress Distribution in Dental Implants and Anisotropic Bone

The effect of different bone level and prosthetic connection on the biomechanical response of unitary implants: Strain gauge and finite element analyses

Three-Dimensional Finite Element Investigation Into Effects of Implant Thread Design and Loading Rate on Stress Distribution in Dental Implants and Anisotropic Bone

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