Importance of diameter-to-length ratio in selecting dental implants: a methodological finite element study

Demenko, Vladislav; Linetskiy, Igor; Nesvit, Kateryna; Hubálková, Hana; Nesvit, Vitalij; Shevchenko, A. K.

doi:10.1080/10255842.2012.688110

Cited by 32 publications

(29 citation statements)

References 36 publications

(72 reference statements)

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“…The results of our study are in agreement with the numerical results of Demenko's study and the conclusion of Baggi et al [2] that implant diameter can be considered a more effective design parameter than implant length [9].…”

Section: Discussionsupporting

confidence: 93%

“…Demenko et al [9] suggested that an increase in implant length and diameter leads to a reduction in stress magnitudes within cortical bone. The results of our study are in agreement with the numerical results of Demenko's study and the conclusion of Baggi et al [2] that implant diameter can be considered a more effective design parameter than implant length [9].…”

Section: Discussionmentioning

confidence: 98%

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Biomechanical finite element analysis of self-tapping implants with different dimensions inserted in two bone qualities

Hasan

Heinemann²,

Bourauel

2014

Biomedical Engineering / Biomedizinische Technik

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Self-tapping dental implants offer the advantage of shortening the surgical insertion time of the implants and improve primary stability in poor bone quality. Using finite element analysis, a series of self-tapping implants with different diameters and lengths have been analysed with respect to their load transfer to the alveolar bone under axial and 45° loading conditions with a total force of 300 N. The implants were inserted in idealised bone beds with cortical thicknesses of 2 and 3 mm. The implants were considered to have osseointegrated condition. A linear decrease of the maximum stresses and strains in the bone around the implants was observed by increasing the diameter of the implants from 3.7 to 5.5 mm regardless of the length of these implants. Lateral loading of the implants caused a critical increase of the stresses and strains in the bone, in particular with the thin cortical layer of 2 mm. The determined biomechanical characteristics of the self-tapping implants showed their applicability in different bone qualities even with extreme reduced length of 7 mm.

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Section: Discussionsupporting

confidence: 93%

Section: Discussionmentioning

confidence: 98%

Biomechanical finite element analysis of self-tapping implants with different dimensions inserted in two bone qualities

Hasan

Heinemann²,

Bourauel

2014

Biomedical Engineering / Biomedizinische Technik

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“…[5] The length of the bone segment in the mesio-distal direction was 20 mm to localize the stress around the implant. [10] In the buccal-lingual direction it was 12.5 mm thick and the height was 22.5 mm. The entire volume of the bone was considered to be a homogeneous, isotropic material with the character of cortical bone.…”

Section: Methodsmentioning

confidence: 99%

“…Cancellous bone changes its structure after osseointegration and the bone–implant interface becomes more similar to the cortical bone. [10] [Elastic modulus (E) = 1.37 × 10 4 M Pa, Poisson's ratio (u) = 0.3].…”

Section: Methodsmentioning

confidence: 99%

Impact of implant diameter and length on stress distribution in osseointegrated implants: A 3D FEA study

Eazhil¹,

Swaminathan²,

Gunaseelan³

et al. 2016

J Int Soc Prevent Communit Dent

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Aims and Objectives:Dimension of dental implant is an important parameter which has a considerable impact on the biomechanical load transfer characters and its prognosis. Excessive stress in the bone–implant interface may result in the failure of the implant. The aim of this study was to evaluate the impact of implant diameter and length on neighboring tissues around the implant. The results of the study will help in developing a scientific methodology to select appropriate implant diameter and length.Materials and Methods:In this study, tapered implants of different diameter and length were numerically analyzed using bone–implant models developed from computed tomography generated images of mandible with osseointegrated implants. The impact of various diameters on stress distribution was examined using implants with a length of 13 mm and diameters of 3.5 mm, 4.3 mm and 5.0 mm. Implants with a diameter of 4.3 mm and lengths of 10 mm, 13 mm, 16 mm was developed to examine the impact of various implant length. All materials were assumed to be linearly elastic and isotropic. Masticatory load was applied in a natural direction, oblique to the occlusal plane. The Statistical Package for the Social Sciences software package was used for statistical analysis.Results:Maximum von Mises stresses were located around the implant neck. It was demonstrated that there was statistically significant decrease in von Mises stress as the implant diameter increased.Conclusion:Within the limitations of this study there was statistically significant decrease in von Mises stress as the implant diameter increased.

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“…Due to the lack of periodontal ligament transfer in dental implant, the forces of chewing will transfer directly to the surrounding bones near the implant. Therefore, much effort has been devoted to investigate the relation between the characteristics of dental implant and the stress distribution near the dental implant-bone interface [1][2][3][4][5]. The most common cause of failure in dental implant is inadequate bone formation around the biomaterial immediately after implantation [6].…”

Section: Introductionmentioning

confidence: 99%

A comparative finite element analysis of two types of axial and radial functionally graded dental implants with titanium one around implant-bone interface

Shirazi

Ayatollahi

Karimi

et al. 2016

Science and Engineering of Composite Materials

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Functionally graded biomaterials (FGBMs) have received significant attention in the recent years as potential candidates for the next generation of dental implant improvement. This happened due to their unique advantages and their ability to satisfy the requirements of both biomechanical and biocompatibility properties simultaneously. This study was aimed to analyze the effects of two radial and axial FGBM dental implants on the stress distribution near the dental implant-bone interface under a static load using finite element method (FEM). The model was restrained on a base supporting bone and vertically loaded with a force of 100 N on the top of the abutment. In the FGBM models, the implants are made of a combination of bioceramic and biometal composition, with properties that change gradually and continuously in the radial and axial directions. The numerical results indicated that the use of both radial and axial FGBM dental implants reduced the maximum von Mises stress in the cortical and the cancellous bones in comparison with the common titanium one, which leads to faster bone regeneration and early stabilization of dental implant system. The findings of the present study may have implications not only for understanding the stresses and deformations around the implant-bone interface but also for improving the performance as well as application of FGBMs in dental implant materials.

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Importance of diameter-to-length ratio in selecting dental implants: a methodological finite element study

Cited by 32 publications

References 36 publications

Biomechanical finite element analysis of self-tapping implants with different dimensions inserted in two bone qualities

Biomechanical finite element analysis of self-tapping implants with different dimensions inserted in two bone qualities

Impact of implant diameter and length on stress distribution in osseointegrated implants: A 3D FEA study

A comparative finite element analysis of two types of axial and radial functionally graded dental implants with titanium one around implant-bone interface

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