Effects of different inter-implant distances on the stress distribution around endosseous implants in posterior mandible: A 3D finite element analysis

Şimşek, Barış; Erkmen, Erkan; Yılmaz, Derviş; Eser, Atılım

doi:10.1016/j.medengphy.2005.04.025

Cited by 66 publications

(28 citation statements)

References 25 publications

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“…Further studies should analyze the stresses generated by different load angulation, nonlinear models, and dynamic loading, as well as in bone with different density. Integration with other areas, such as engineering, underscores the need to exchange information and technologies for the scientific advancement of dentistry, since clinical observations are not enough to support theoretical knowledge [14]. Thus, additional research with multidisciplinary efforts should optimize the predictability of the models for clinical treatment and innovation trends.…”

Section: Discussionmentioning

confidence: 99%

“…There are several types of attachments available in the worldwide market, and the most popular are ball, o'ring, stud, and magnet [3,4]. In the literature, the biomechanical behavior of these systems was studied mainly by means of the prosthesis retention [5][6][7][8][9][10][11][12] or the bone-implant-abutmentattachment-prosthesis interaction [6,[13][14][15][16]. However, there are still limited studies that have addressed the optimization of this type of treatment with alternative implant localization designs across attachment systems [3,4].…”

Section: Introductionmentioning

confidence: 99%

“…The biomechanical behavior of implant-supported implants, considering the tensions generated at the boneimplant-abutment-prosthesis interfaces can be evaluated through different methods: photoelastic analysis [6], extensometry [7,8,15], and finite element analysis [11,13,14,16]. According to Tanino et al [16], the photoelastic analysis is limited in the quantification of the information, and the extensometry is influenced by the size of the extensometer.…”

Section: Introductionmentioning

confidence: 99%

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Three-dimensional finite element analysis of mandibular overdentures with different implant positions and attachment types

Broilo¹,

Sartori²,

Mariano³

et al. 2018

Rev. Odonto Ciênc. (Online)

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OBJECTIVE: This 3-D FEA study compared the stress distribution in two-implant mandibular overdentures as a function of implant position and attachment system (LA: locator attachment vs. BA: ball attachment). METHODS: Four models of mandibular overdentures were tested: M1-LA -with implants at the canine regions (standard implant position) and LA; M2-LA -with implants placed at the first premolar regions (distalized implant position) and LA; M1-BA -with standard implant position and BA; and M2-BA -with distalized implant position and BA. The geometric models were converted into finite element models. A 100 N axial load was applied at the first molar region. The von-Mises stress distribution was compared in selected points. RESULTS: The models with BA had pattern of stress distribution was more uniform along the implant axis than the ones with LA, although the stress magnitude was larger. The largest area of von Mises stresses on the alveolar ridge was in the models with standard implant distribution. CONCLUSION: The findings showed that the models with BA had better biomechanical behavior than the ones with LA. For both types of attachment, the models with increased inter-implant distance presented a smaller area of stress distribution in the perimplant cortical bone tissue than the standard implant position.Keywords: dental implants; implant-supported overdenture; biomechanics; finite element analysis.Análise de elementos finitos em 3D de sobredentaduras mandibulares com diferentes posições de implante e tipos de encaixe RESUMO OBJETIVO: Este estudo de análise de elementos finitos em 3-D comparou a distribuição de tensão em sobredentaduras suportadas por implante em função da posição do implante e do sistema de encaixe (AA: tipo "locator" vs. BA: tipo "bola") METODOLOGIA: Foram testados quatro modelos 3-D de sobredentadura com implante mandibular: M1-LAcom implantes nas regiões dos dentes caninos (posição padrão dos implantes) e LA; M2-LA -com implantes nas regiões dos dentes primeiros pré-molares (posição distalizada dos implantes) e LA; M1-BA -com posição padrão de implante e BA; e M2-BA -com posição distalizada dos implantes e BA. Os modelos geométricos foram convertidos em modelos de elementos finitos. Uma carga axial de 100 N foi aplicada na primeira região molar. A distribuição de estresses von Mises foi comparada em pontos selecionados. RESULTADOS: Os modelos com BA apresentaram padrão de distribuição de estresse mais uniforme ao longo do eixo do implante do que os modelos com LA, embora a magnitude do estresse tenha sido maior. A maior área de tensões no rebordo alveolar ocorreu nos modelos com posição padrão de implantes. CONCLUSÃO: Os resultados sugerem que os modelos com BA apresentaram melhor comportamento biomecânico do que aqueles com LA. Para ambos os encaixes, implantes distalizados apresentam uma menor área de distribuição de estresse no tecido ósseo cortical do que posicionamento padrão dos implantes.Palavras-chave: implantes dentários; sobredentadura sobre implantes; biomecânica; anális...

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Three-dimensional finite element analysis of mandibular overdentures with different implant positions and attachment types

Broilo¹,

Sartori²,

Mariano³

et al. 2018

Rev. Odonto Ciênc. (Online)

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show abstract

“…Fuente: autor Algunos datos de las propiedades mecánicas de los materiales registrados en la tabla I, fueron obtenidos por literatura [19], [12], [25]. Por otra parte, la caracterización de densidad del tejido óseo fue realizada por medio de la aplicación de métodos no destructivos, cuyos resultados fueron publicados previamente por Lopez y Cols [26].…”

Section: Fig 5 Modelo Virtual 3d Del Especímen óSeo Con Implante Inunclassified

“…Posteriormente, los datos de torque fueron usados en simulaciones biomecánicas y fueron evaluadas por el método de análisis de elementos finitos AEF [11], [12]. Los resultados de los esfuerzos y deformaciones producidos por efecto del TI en la interfase hueso implante, fueron analizados con respecto a la resistencia del hueso e implante [10], estableciendo de este modo por simulación, los rangos de valores de torque adecuados para inserción del implante.…”

Section: Introductionunclassified

Estudio experimental para establecer los valores de torque de inserción en implante dental<br /> Experimental study to establishing the insertion torque on dental implant

López-Gualdrón¹,

Galeano-Arrieta²,

Pinillos³

et al. 2014

Iteckne

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Palabras clave-Biomecánica y simulación, Implante, Modelos de elementos finitos, Torque.Abstract-The main purpose of this research was the development of a study to determine the values of insertion torque recommended to reduce the likelihood of generating pathological overload of mandible molar region due to insertion torque applied to adjust the dental implant. Ti6Al4V dental implants were manufactured to be inserted into bone tissue specimens of human cadaver jaw and similar densities of bone substitute specimens Sawbone ® normalized like bone density D2 type. Then were measured the insertion torque data recording to adjust the implant at samples. Data from the test were used in simulations based on the finite element method. Through the elastic strain criteria, it was known the strain values less than 0,4% of the elastic strain at the bone implant interface. Based on outputs case study, the values of insertion torque to be applied to insert implants surgery are recommended.

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A histological and biomechanical study of bone stress and bone remodeling around immediately loaded implants

Han

Hou

Zhou

et al. 2014

Sci. China Life Sci.

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Immediate loading (IL) increases the risk of marginal bone loss. The present study investigated the biomechanical response of peri-implant bone in rabbits after IL, aiming at optimizing load management. Ninety-six implants were installed bilaterally into femurs of 48 rabbits. Test implants on the left side created the maximal initial stress of 6.9 and 13.4 MPa in peri-implant bone and unloaded implants on the contralateral side were controls. Bone morphology and bone-implant interface strength were measured with histological examination and push-out testing during a 12-week observation period. Additionally, the animal data were incorporated into finite element (FE) models to calculate the bone stress distribution at different levels of osseointegration. Results showed that the stress was concentrated in the bone margin and the bone stress gradually decreased as osseointegration proceeded. A stress of about 2.0 MPa in peri-implant bone had a positive effect on new bone formation, osseointegration and bone-implant interface strength. Bone loss was observed in some specimens with stress exceeding 4.0 MPa. Data indicate that IL significantly increases bone stress during the early postoperative period, but the load-bearing capacity of peri-implant bone increases rapidly with an increase of bone-implant contact. Favorable bone responses may be continually promoted when the stress in peri-implant bone is maintained at a definite level. Accordingly, the progressive loading mode is recommended for IL implants. implant, osseointegration, bone remodeling, immediate loading, finite element analysis Citation:Han JY, Hou JX, Zhou G, Wang C, Fan YB. A histological and biomechanical study of bone stress and bone remodeling around immediately loaded implants.

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Effects of different inter-implant distances on the stress distribution around endosseous implants in posterior mandible: A 3D finite element analysis

Cited by 66 publications

References 25 publications

Three-dimensional finite element analysis of mandibular overdentures with different implant positions and attachment types

Three-dimensional finite element analysis of mandibular overdentures with different implant positions and attachment types

Estudio experimental para establecer los valores de torque de inserción en implante dental<br /> Experimental study to establishing the insertion torque on dental implant

A histological and biomechanical study of bone stress and bone remodeling around immediately loaded implants

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