Biomechanical investigations of the expanded platform-switching concept in immediately loaded small diameter implants

Wu, Aaron Yu-Jen; Lung, Hsuan; Huang, Heng‐Li; Chee, Winston W.L.

doi:10.1016/j.prosdent.2015.08.005

Cited by 7 publications

(6 citation statements)

References 22 publications

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“… 20 27 In several previous studies using finite element analysis, it was reported that platform switching reduced bone strain and affected the stress distribution in the marginal bone, as well as increasing the stress on the abutment and abutment screw. 19 20 21 24 Considering the displacements and stresses in the cortical and cancellous bone and the implant components in this study, there seemed to be no noticeable influence of platform switching on peri-implant bone structure.…”

Section: Discussionmentioning

confidence: 69%

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Three-dimensional finite element analysis of platform switched implant

et al. 2017

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PURPOSEThe purpose of this study was to analyze the influence of the platform switching concept on an implant system and peri-implant bone using three-dimensional finite element analysis.MATERIALS AND METHODSTwo three-dimensional finite element models for wide platform and platform switching were created. In the wide platform model, a wide platform abutment was connected to a wide platform implant. In the platform switching model, the wide platform abutment of the wide platform model was replaced by a regular platform abutment. A contact condition was set between the implant components. A vertical load of 300 N was applied to the crown. The maximum von Mises stress values and displacements of the two models were compared to analyze the biomechanical behavior of the models.RESULTSIn the two models, the stress was mainly concentrated at the bottom of the abutment and the top surface of the implant in both models. However, the von Mises stress values were much higher in the platform switching model in most of the components, except for the bone. The highest von Mises values and stress distribution pattern of the bone were similar in the two models. The components of the platform switching model showed greater displacement than those of the wide platform model.CONCLUSIONDue to the stress concentration generated in the implant and the prosthodontic components of the platform switched implant, the mechanical complications might occur when platform switching concept is used.

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Section: Discussionmentioning

confidence: 69%

“… 19 In another study, platform switching was found to reduce bone strain. 21 22 The value and range of stress concentration decreased as the implant diameter increased in a further study. 3 23 Previous studies suggested that platform switching reduced stress on the marginal bone crest.…”

Section: Introductionmentioning

confidence: 73%

Three-dimensional finite element analysis of platform switched implant

et al. 2017

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“…In a biomechanical analysis 15 performed by placing PSW-compatible abutments in narrowdiameter (3.25 mm) implants, marginal bone stresses were found to be 74.9% lower than those of PM implants. When immediate loading was performed with the PSW abutment in small diameter implants, marginal bone stresses around the implant were less common.…”

Section: Discussionmentioning

confidence: 95%

“…12,13 Factors affecting the marginal bone loss around the implant are presented in Table 1. [14][15][16]…”

Section: Introductionmentioning

confidence: 99%

The Impact of Platform-Switched Implants on the Marginal Bone Level and Soft Tissue Dimensions

Durkan¹,

Oyar²,

Deste³

2019

Cumhuriyet Dental Journal

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Objectives:The objective of this study is to compare the characteristics of the concept of platform-switched implants (PSW) that have recently emerged in implant dentistry and its effects on the marginal bone loss (MBL) around the implant with platform-matched implants (PMI). Data:In the study, PSW implant-abutment connection system, MBL, and periimplant hard and soft tissue changes were examined. The research terms used in the study are dental implant, platform switching concept, switched platform, platform mismatch, platform-matched implants, and dental implant-abutment design. Sources:In the electronic research, the language was selected as English and studies conducted until March 2018 were investigated without year limitation. The electronic studies include the National Library of Medicine, PubMed/Medline, Web of Science, Cochrane Oral Health Group Trials, and Cochrane Central Register of Controlled Trials. Study selection: Studies, retrospective or prospective clinical human studies, either randomized systematic review and meta-analyses, and finite element analyses (FEA) were examined. Case reports and studies of animal experiments were excluded from the review. Conclusions:It was observed that clinical trials consisted of short and medium-term follow-ups and biomechanical studies were limited. It was observed that PSW implant systems obtain positive results in reducing the MBL and are more aesthetic in terms of soft tissue formation compared to PMI systems, and interest has been gradually increasing in the PSW system in recent years. It was revealed that long-term clinical trials for the PSW system are required.

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“…Owing to the anatomical characteristic, implants of reduced diameter are normally used in the anterior regions. The use of reduced‐diameter implants compromises the dissipation of occlusal loads and, consequently, increases the stress on the bone around the implant 14,49 …”

Section: Prevalence Of Peri‐implantitis In Relation To the Implant Lo...mentioning

confidence: 99%

Does implant location influence the risk of peri‐implantitis?

Moraschini

Kischinhevsky

Sartoretto

et al. 2022

Periodontology 2000

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Dental implants provide reliable and predictable solutions to replacing missing teeth in partially or fully edentulous patients. 1 Preserving the healthy condition of tissues surrounding the dental implant is one of the main strategies for long-term maintenance. 2 However, this goal is not easily achievable, as infectious diseases in the periodontal tissues may disturb the function of osseointegrated implants. 3 Inflammation of the peri-implant soft tissue creates a reversible condition called peri-implant mucositis, characterized by bleeding on gentle probing, though without loss of supporting bone. 4 According to the International Workshop for the Classification of Periodontal and Peri-Implant Diseases (2017), periimplantitis is the progression of mucositis, characterized by nonreversible and progressive loss of supporting bone and associated with bleeding and/or suppuration on probing; bone loss may be observed radiographically. 4,5 Consensus exists that peri-implant mucositis and peri-implantitis are caused by an inflammatory response to biofilm accumulation, 6 similar to gingivitis and periodontitis. 7 However, a variety of patient-, prosthetic-, and implant-related factors may influence their occurrence. Patient-related indicators include smoking, poor oral hygiene, and systemic diseases, such as diabetes mellitus and periodontal disease. 2,8-10 The literature has examined prothesis-related factors that increase a patient's risk of developing peri-implant bone loss. For instance, several studies 2,11 have reported a relationship between cemented restorations and peri-implantitis, which is likely due to the presence of residual cement in the sulcus. Finally, implant-related factors, such as anatomic localization (anterior/posterior, maxilla, or mandible), are suggested as potential indicators for the development of peri-implant bone loss. Although the literature shows a tendency toward a higher prevalence of peri-implantitis in patients with mandibular implants, [12][13][14][15] consensus on this association does not exist. 2,16,17 The prevalence of peri-implantitis has been evaluated by several clinical studies with different follow-ups. [18][19][20] A previous systematic review 21 assessed the prevalence, extent, and severity of peri-implant diseases in 11 studies. The prevalence of peri-implant mucositis and peri-implantitis was 43% (ranging from 19% to 65%) and 22% (ranging from 1% to 47%), respectively. Nevertheless, these results should be interpreted with caution owing to differences in case definitions, follow-up times, and patient selection in the assessed studies. Additionally, relevant anatomic localization conditions related to prostheses and implants were not included in the analysis.Few previous studies have specifically investigated the relationship between implant location and peri-implantitis prevalence. Most of these studies found a greater occurrence of peri-implantitis in the posterior location of the mandible. 11,12 Anatomic localization factors, such as bone characteristics, narrow band...

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Biomechanical investigations of the expanded platform-switching concept in immediately loaded small diameter implants

Cited by 7 publications

References 22 publications

Three-dimensional finite element analysis of platform switched implant

Three-dimensional finite element analysis of platform switched implant

The Impact of Platform-Switched Implants on the Marginal Bone Level and Soft Tissue Dimensions

Does implant location influence the risk of peri‐implantitis?

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