Effect of platform switching on peri-implant bone: A 3D finite element analysis

Aslam, Ayesha; Hassan, Syed Hammad; Aslam, Hammad Mudasser; Khan, Danish Azeem

doi:10.1016/j.prosdent.2018.08.011

Cited by 18 publications

(19 citation statements)

References 22 publications

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“…20 In addition, by using a smaller prosthetic component, the area of force on the implant is concentrated outside the zone of the marginal bone crest. [21][22][23][24] One theory assumes that the change in the prosthetic abutment-implant connection helps to maintain biological space and thus reduces bone loss from the marginal ridge. 25 Failures in the rehabilitation of dental implants are the result of mechanical or biological problems.…”

Section: Discussionmentioning

confidence: 99%

“…3,18,19 Other finite element analyses reported that the application of nonaxial loads on the combinations of implant and abutment in switched-platform implants reduced the stress concentrated in the cortical bone area, transferring it to the spongy bone area. 21,23 However, although the platformswitched system has the biomechanical advantage of transferring the stress concentration away from the cervical implant portion, an increase in the stress on the abutment and the fixation screw has been reported. 22 This situation could lead to fatigue and, consequently, the maladjustment of parts or screw loosening or fracture.…”

Section: Discussionmentioning

confidence: 99%

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Effects of different switched or not-switched implant and abutment platform designs and marginal bone loss on fracture strength: An in vitro study

Gehrke

Dedavid

Prados-Frutos

2022

The Journal of Prosthetic Dentistry

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Marginal bone loss associated with dental implants is a major concern and clinical challenge, as the resistance to fracture of implants when in function (receiving loads) is given by the set formed between the walls of the implant and the amount of bone tissue around the walls. The presence of an adequate crestal bone level has been considered an important clinical determinant for the longterm success of implant treatments 1-3 because loss of bone from the peri-implant ridge will significantly affect the biomechanical anchorage of the prosthesis and may compromise treatment longevity. 4 Implants with different cervical designs and platforms have been proposed to maintain the health and quantity of periimplant tissues. Platform switching, where the implant diameter is greater than the abutment diameter, was first described by Lazzara and Porter in 2006. 5 The level of bone remodeling or resorption around dental implants is influenced by surgical aspects,

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Effects of different switched or not-switched implant and abutment platform designs and marginal bone loss on fracture strength: An in vitro study

Gehrke

Dedavid

Prados-Frutos

2022

The Journal of Prosthetic Dentistry

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“…Aslam et al [ 41 ] as well as Xia et al [ 42 ] compared a platform-matched implant with a platform-switched implant, finding a significantly higher stress distribution in peri-implant bone surrounding the platform-matched implant. A similar situation was found in this work when analyzing the behavior of implants with a tissue-level design and implants that applied a platform-switching concept to their design.…”

Section: Discussionmentioning

confidence: 99%

Effect of Different Implant Designs on Strain and Stress Distribution under Non-Axial Loading: A Three-Dimensional Finite Element Analysis

Oliveira

Brizuela-Velasco

Ríos-Santos

et al. 2020

IJERPH

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Implant design evolved alongside the development of implant therapy. The purpose of this finite element analysis (FEA) study was to analyze the influence of different implant designs on the stress and strain distribution to the implants and surrounding bone. Three implant designs with the same length and diameter were used. The three-dimensional geometry of the bone was simulated with a cortical bone of three different thicknesses and two medullar bone densities: low density (150 Hounsfield units) and high density (850 Hounsfield units). A 30° oblique load of 150 N was applied to the implant restoration. Displacement and stress (von Mises) results were obtained for bone and dental implants. The strain and stress distributions to the bone were higher for the tissue-level implant for all types of bone. The maximum principal strain and stress decreased with an increase in cortical bone thickness for both cancellous bone densities. The distribution of the load was concentrated at the coronal portion of the bone and implants. All implants showed a good distribution of forces for non-axial loads, with higher forces concentrated at the crestal region of the bone–implant interface. Decrease in medullar bone density negatively affects the strain and stress produced by the implants.

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“…106 Recent systematic reviews and meta-analyses of these designs found that rough or laser microtextured collars had significantly less marginal bone loss if placed subcrestally compared with machined collars. 107,108 Similarly, the platform switching concept was favored as more peri-implant marginal bone was preserved, [109][110][111][112][113][114] but thickness of soft tissues might still influence the amount of crestal remodeling. 115 However, these results must be interpreted with caution, as the studies were very heterogeneous in design and the actual differences in the marginal bone levels between the designs (eg, weighted mean difference of 0.43-0.77 mm) were clinically irrelevant.…”

Section: Implant Collar/platform Designsmentioning

confidence: 99%

Breaking the wave of peri‐implantitis

Wang

2020

Periodontology 2000

107

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Peri‐implant diseases are prevalent with a weighted mean prevalence rate of 43% across Europe and 22% across South and North America. Although the main etiologic agent is bacterial biofilm, a myriad of factors influence the initiation and progression of the disease. Unfortunately, the treatment of peri‐implant diseases is at best favorable in the short term with a high rate of persistent inflammation and recurrence. Therefore, it is sensible to consider and control all potential factors that may predispose an implant to peri‐implant tissue inflammation in an attempt to avoid the disease. This paper reviews recent evidence on factors that may predispose implants to peri‐implantitis and measures that can be taken to prevent it.

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Effect of platform switching on peri-implant bone: A 3D finite element analysis

Cited by 18 publications

References 22 publications

Effects of different switched or not-switched implant and abutment platform designs and marginal bone loss on fracture strength: An in vitro study

Effects of different switched or not-switched implant and abutment platform designs and marginal bone loss on fracture strength: An in vitro study

Effect of Different Implant Designs on Strain and Stress Distribution under Non-Axial Loading: A Three-Dimensional Finite Element Analysis

Breaking the wave of peri‐implantitis

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