Dynamic fatigue properties of the dental implant–abutment interface: Joint opening in wide-diameter versus standard-diameter hex-type implants

Hoyer, Scott A.; Stanford, Clark M.; Buranadham, Supanee; Fridrich, Todd; Wagner, J. L.; Gratton, David G.

doi:10.1067/mpr.2001.115250

Cited by 59 publications

(55 citation statements)

References 4 publications

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“…Even though the literature in the topic is under development, it is general consensus that bone resorption can be reduced when the abutments are smaller than the diameter of the implant body ('platform switching') (5-11, 15, 16). In agreement with recently published studies (17)(18)(19)(20), our results showed that the ED configuration minimized the stresses at the implant/abutment interface region. In addition, the observed stress reduction on the coronal part of bone tissue brought about by the ED configuration with respect to SCD and to WCD configuration amounted to 160% and 33% respectively.…”

Section: Discussionsupporting

confidence: 82%

The influence of platform switching on the biomechanical aspects of the implant-abutment system. A three dimensional finite element study

et al. 2011

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Objective: To evaluate the biomechanical scenario of platform switching geometric implant-abutment configuration relative to standard configurations by means of finite element analysis. Study Design: A 3D Finite Element Analysis (FEA) was performed on 3 different implant-abutment configurations: a 3.8 mm implant with a matching diameter abutment (Standard Control Design, SCD), a 5.5 mm implant with matching diameter abutment (Wider Control Design, WCD), and a 5.5mm implant with a 3.8 mm abutment (Experimental Design, ED). All the different experimental groups were discretized to over 60000 elements and 100000 nodes, and 130N vertical (axial) and 90N horizontal loads were applied on the coronal portion of the abutment. Von Mises stresses were evaluated and maximum and minimum values were acquired for each implantabutment configuration. Results: The load-induced Von Mises stress (maximum to minumum ranges) on the implant ranged from 150 MPa to 58 Pa (SCD); 45 MPa to 55 Pa (WCD); 190 MPa to 64 Pa (ED). The Von Mises stress on the abutment ranged from 150 MPa to 52 MPa (SCD); 70 MPa to 55 MPa (WCD), and 85 MPa to 42 MPa respectively (ED). The maximum stresses transmitted from the implant-abutment system to the cortical and trabecular bone were 67 Pa and 52 MPa (SCD); 54 Pa and 27 MPa (WCD); 64 Pa and 42 MPa (ED), respectively. When the implant body was evaluated for stresses, a substantial decrease in their levels were observed at the threaded implant region due to the diametral mismatch between implant and abutment for the ED configuration. Conclusion: The platform switching configuration led to not only to a relative decrease in stress levels compared to narrow and wide standard configurations, but also to a notable stress field shift from bone towards the implant system, potentially resulting in lower crestal bone overloading.

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Section: Discussionsupporting

confidence: 82%

The influence of platform switching on the biomechanical aspects of the implant-abutment system. A three dimensional finite element study

et al. 2011

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“…However, many implants have been reported in the clinical treatment of a variety of failure of the dental implant. Many causes of failure were associated with the mechanical properties, such as the fracture the oral implant failure [9,10,14] and loosening of the screws and fracture which occurred after implant prosthetic fixture and abutment [15], and causes undue load failure has been reported to cause failure due to the oral environment, such as the oral cavity and poor bone quality, and the like [16].…”

Section: Discussionmentioning

confidence: 99%

“…However, it is also reported for the mechanical properties of the implant in a variety of studies, such as fracture, loosening of the screw phenomenon, fatigue strength, and stress due to the difference between the prosthetic implant made to the fastening system and Osseo integration failure [7,8,9,10]. The hardness of the implant, which is made of commercially pure titanium Grade with the same hardness, has to be compared by the mechanical properties of the implant according to the difference of the coupling method because it is determined by the properties of the alloy, however, previous studies were a mixture of commercially pure titanium Grade 3 and commercially pure titanium Grade 4, so there was a limitation of the comparison of the difference between the coupling method of the implant to the work [11].…”

Section: Introductionmentioning

confidence: 99%

The Study of Compression Shear Load of Implanting in Four Different Fastening Method

Park

Jeong²,

Kang³

2015

IJBSBT

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“…Longevity of implant prostheses mainly depends on passive seating and accurate fit of the base of the implant and of the pillar abutment 1 , factors desired by every professional who performs prosthesis implants. Passive seating results in proper dissipation of tension, as the lack of adaptation may lead to screw fracture 2,3 .…”

Section: Introductionmentioning

confidence: 99%

Microscopic evaluation of implant platform adaptation with UCLA-type abutments: in vitro study

Rodrigues

Tribst

Santis

et al. 2017

Rev. odontol. UNESP

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ResumoIntrodução: O ajuste entre a prótese e o implante é fundamental para determinar a longevidade do tratamento e manutenção do osso periimplantar. Objetivo: Avaliar o desajuste vertical entre diferentes infraestruturas metálicas e plataforma dos implantes, a fim de fornecer informação, para auxiliar na escolha do metal a ser utilizado. Material e método: O estudo utilizou componentes do tipo UCLA (N=40), com antirrotacional, foram divididos da seguinte forma: componentes usinados em titânio (n=10), componentes fundidos em titânio (n=10), níquel-cromo-titânio-molibdênio (n=10) e em níquel-cromo (n=10). Após o torque, as amostras foram analisados em estereomicroscópio. Para caracterização em MEV, foram utilizadas as amostras mais representativas, com maior e menor desajuste vertical. Resultado: Os dados foram analisados por média e desvio padrão e submetidos ao teste ANOVA ONE way, onde os grupos foram estatisticamente diferentes (p=<0,05), seguido do teste TUKEY. Conclusão: A escolha do infraestrutura influencia no valor do desajuste vertical, sendo que o grupo usinado em Ti apresentou o menor valor de desajuste, e o grupo fundido em Ni Cr o grupo com maior valor de desajuste vertical.Descritores: Prótese dentária; implante dentário. Abstract Introduction:The fit between abutment and implant is crucial to determine the longevity of implant-supported prostheses and the maintenance of peri-implant bones. Objective: To evaluate the vertical misfit between different abutments in order to provide information to assist abutment selection. Material and method: UCLA components (N=40) with anti-rotational system were divided as follows: components usinated in titanium (n=10) and plastic components cast proportionally in titanium (n=10), nickel-chromium-titanium-molybdenum (n=10) and nickel-chromium (n=10) alloys. All components were submitted to stereomicroscope analysis and were randomly selected for characterization by SEM. Result: Data were analyzed using mean and standard deviation and subjected to ANOVA-one way, where the groups proved to statistically different (p=<0.05), followed by Tukey's test. Conclusion: The selection of material influences the value of vertical misfit. The group machined in Ti showed the lowest value while the group cast in Ni Cr showed the highest value of vertical misfit.

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Dynamic fatigue properties of the dental implant–abutment interface: Joint opening in wide-diameter versus standard-diameter hex-type implants

Cited by 59 publications

References 4 publications

The influence of platform switching on the biomechanical aspects of the implant-abutment system. A three dimensional finite element study

The influence of platform switching on the biomechanical aspects of the implant-abutment system. A three dimensional finite element study

The Study of Compression Shear Load of Implanting in Four Different Fastening Method

Microscopic evaluation of implant platform adaptation with UCLA-type abutments: in vitro study

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