Analysis of the biomechanical behavior of short implants: The photo-elasticity method

Pellizzer, Eduardo Piza; Mello, Caroline Cantieri de; Santiago, Joel Ferreira; Batista, Victor Eduardo de Souza; Almeida, Daniel Augusto de Faria; Verri, Fellippo Ramos

doi:10.1016/j.msec.2015.05.024

Cited by 37 publications

(35 citation statements)

References 25 publications

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“…In the bone tissue was observed difference for splinted compared to non-splinted crowns for the screwed prostheses under oblique loading. Similarly, other studies reported that splinting favors a reduction in stress in the implants/components and, consequently, bone tissue, especially for screwed prostheses under oblique loading (19,20). Splinting favors the sharing of stress between implants, because a rigid structure acts to unite the crowns (20).…”

Section: Discussionmentioning

confidence: 87%

“…Similarly, other studies reported that splinting favors a reduction in stress in the implants/components and, consequently, bone tissue, especially for screwed prostheses under oblique loading (19,20). Splinting favors the sharing of stress between implants, because a rigid structure acts to unite the crowns (20). The larger load in the molar area is due to a greater occlusal table over a short implant.…”

Section: Discussionmentioning

confidence: 87%

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Retention System and Splinting on Morse Taper Implants in the Posterior Maxilla by 3D Finite Element Analysis

et al. 2018

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The purpose of this study was to evaluate different retention systems (cement-or screw-retained) and crown designs (non-splinted or splinted) of fixed implant-supported restorations, in terms of stress distributions in implants/components and bone tissue, by 3-dimensional (3D) finite element analysis. Four 3D models were simulated with the InVesalius, Rhinoceros 3D, and SolidWorks programs. Models were made of type III bone from the posterior maxillary area. Models included three 4.0-mm-diameter Morse taper (MT) implants with different lengths, which supported metal-ceramic crowns. Models were processed by the Femap and NeiNastran programs, using an axial force of 400 N and oblique force of 200 N. Results were visualized as the von Mises stress and maximum principal stress (σ max ). Under axial loading, there was no difference in the distribution of stress in implants/components between retention systems and splinted crowns; however, in oblique loading, cemented prostheses showed better stress distribution than screwed prostheses, whereas splinted crowns tended to reduce stress in the implant of the first molar. In the bone tissue cemented prostheses showed better stress distribution in bone tissue than screwed prostheses under axial and oblique loading. The splinted design only had an effect in the screwed prosthesis, with no influence in the cemented prosthesis. Cemented prostheses on MT implants showed more favorable stress distributions in implants/components and bone tissue. Splinting was favorable for stress distribution only for screwed prostheses under oblique loading.

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Section: Discussionmentioning

confidence: 87%

Section: Discussionmentioning

confidence: 87%

Retention System and Splinting on Morse Taper Implants in the Posterior Maxilla by 3D Finite Element Analysis

et al. 2018

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“…All models showed maximum von Mises stress values appearing mainly at the cortical buccal bone around the neck of the implant as a result of an oblique load of 30° to buccal cusp; therefore, a reduction of the non-axial loading to the implant is essential in maintaining biomechanical stress distribution in the supporting bone around the implant (22,23). Standard implant models revealed lower stress values at 41% less than those of the short implant models because the short implants were comprised of less area that could dissipate the tension (18). In agreement with the study of Guan et al, it was found that the von Mises stress value in the short dental implant was 2-3 times greater than that of the standard implant (24).…”

Section: © C I C E D I Z I O N I I N T E R N a Z I O N A L Imentioning

confidence: 99%

“…Therefore, occlusal overloading can cause implant failure (25), especially in short implants that are placed in the posterior region to support model (17), as long as the height of the bone was sufficient. In terms of the applied force, the oblique load was used to imitate the occlusal force because the oblique load can produce a greater amount of stress and strain, which is harmful to the peri-implant tissue, while a large segment of the masticatory force behaves like the oblique force (18). The six finite element models exhibited stress that was transferred to the peri-implant bone and this stress value was dependent on the length of the implant and prosthetic design.…”

confidence: 99%

“…The six finite element models exhibited stress that was transferred to the peri-implant bone and this stress value was dependent on the length of the implant and prosthetic design. Several studies have determined the factors that affect stress distribution to the bone located around the implant such as with the type of bone (19), the diameter of the implant (16)(17)(18)(19)(20), the design of the connection (21), as well as the material of the framework, etc. (16).…”

confidence: 99%

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Stress Distribution of Various Designs of Prostheses on Short Implants or Standard Implants in Posterior Maxilla: A Three Dimensional Finite Element Analysis

Jomjunyong

Rungsiyakull

et al. 2017

ORL

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SUMMARY Introduction.Although many previous studies have reported on the high success rate of short dental implants, prosthetic design still plays an important role in the long-term implant treatment results. This study aims to evaluate stress distribution characteristics involved with various prosthetic designs on standard implants or short implants in the posterior maxilla. Materials and methods. Six finite element models were simulated representing the missing first and second maxillary molars. A standard implant (PW+ implant: 5.0x10 mm) and a short implant (PW+ implant: 5.0x6.0 mm) were applied under the various prosthetic conditions. The peri-implant maximum bone stress (V on mises stress) was evaluated when 200 N 30° oblique load was applied. A type III bone was approximated and complete osseous integration was assumed. Results. Maximum Von mises stress was numerically located at the cortical bone around the implant neck in all models.In every standard implant model shows better stress distribution. Stress values and concentration area decreased in the cortical and cancellous bone when implants were splinted in both the standard and short implant models. With regard to the non-replacing second molar models found that the area of stress at the cortical bone around the first molar implant to be more intensive. Moreover, in the non-replacing second molar models, the stress also spread to the second pre-molar in both the standard and short implant models. Conclusions. The length of the implant and prosthetics designs both affect the stress value and distribution of stress to the cortical and cancellous bones around the implant.

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Optimization of stress distribution of bone-implant interface (BII)

Zhang¹,

Zeng²,

Wang³

et al. 2023

Biomaterials Advances

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Analysis of the biomechanical behavior of short implants: The photo-elasticity method

Cited by 37 publications

References 25 publications

Retention System and Splinting on Morse Taper Implants in the Posterior Maxilla by 3D Finite Element Analysis

Retention System and Splinting on Morse Taper Implants in the Posterior Maxilla by 3D Finite Element Analysis

Stress Distribution of Various Designs of Prostheses on Short Implants or Standard Implants in Posterior Maxilla: A Three Dimensional Finite Element Analysis

Optimization of stress distribution of bone-implant interface (BII)

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