Effect of Platform Switching on Strain Developed Around Implants Supporting Mandibular Overdenture

Sabet, Marwa Ezzat; EL-Korashy, Dalia I.; El-Mahrouky, Nesrin

doi:10.1097/id.0b013e3181b4f98c

Cited by 8 publications

(4 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The most appropriate reduced platform abutment design for securing lesser implant abutment material fatigue is represented by conical emergence abutments with a variable height of 1.5-2mm, freeing extension of the implant platform between 0.5-0.75mm (10). Such platform switching is not advisable in mandibular implant-mucosal support prostheses, since reduction of the diameter of the junction lessens the abutment resistance in response to occlusal loading applied in the posterior area of the overdentures -fundamentally compromising the connecting abutment closest to the area where loading is applied (16).…”

Section: Biomechanical Behaviormentioning

confidence: 99%

The influence of platform switching in dental implants. A literature review

Serrano-Sánchez¹,

Calvo-Guirado²,

Manzanera-Pastor³

et al. 2011

Med Oral

View full text Add to dashboard Cite

Introduction: The platform switching concept involves the reduction of the restoration abutment diameter with respect to the diameter of the dental implant. In 1991, dental implants of 5 and 6 mm diameter platforms were introduced. However, matching-diameter prosthetic abutments were not available. These implants were restored with "standard"-diameter prosthetic components (4,1 mm). Long-term follow up around these wide-platforms showed higher levels of bone preservation. In time, it has been called platform switching. The first case report applying this concept was indexed in MedLine in 2005. Materials and Methods: The aim of this article is to carry out a literature review of articles which deal with the influence of this modified platform in hard and soft oral tissues. All papers involving "platform switching" that are indexed in MedLine and published in English were used. Clinical cases, experimental and non-experimental studies were included, as well as literature reviews. Results: In our search, we found: 16 clinical series or single clinical cases, 10 test and control studies, 9 experimental studies and 3 reviews. Conclusion: All papers written by different researchers show an improvement in perimplant bone preservation. Further long-term studies are necessary to confirm these results. The articles consulted refer to the biomechanical behavior of the abutment-implant complex in response to occlusal loading, the maintenance of crestal bone height and the peculiar repositioning of the biological space.

show abstract

Section: Biomechanical Behaviormentioning

confidence: 99%

The influence of platform switching in dental implants. A literature review

Serrano-Sánchez¹,

Calvo-Guirado²,

Manzanera-Pastor³

et al. 2011

Med Oral

View full text Add to dashboard Cite

show abstract

“…The type of prosthetic restoration has also been reported to play a role in bone‐level changes after implant placement, but only a single clinical study on platform switching in implant overdentures (IODs) could be identified (Bilhan, Mumcu, Erol, & Kutay, 2010), demonstrating a positive effect of platform switching on ΔIBL. An in vitro study analyzing strain distribution in IODs with non‐splinted abutments did not favor platform switching (Sabet, EL‐Korashy, & El‐Mahrouky, 2009) due to the strain on the surrounding bone of the individual implants. In the present study, the two interforaminal implants were directly splinted with a bar.…”

Section: Discussionmentioning

confidence: 99%

Platform switching in two‐implant bar‐retained mandibular overdentures: 1‐year results from a split‐mouth randomized controlled clinical trial

Abou‐Ayash

Schimmel

Kraus

et al. 2020

Clinical Oral Implants Res

View full text Add to dashboard Cite

Objectives: The concept of platform switching is widely applied in current implant dentistry; however, the influence on peri-implant bone-level alterations (ΔIBL), especially in the field of implant overdentures (IODs), remains inconclusive. Therefore, the present study aimed to test the alternative hypothesis that there is an equivalent ΔIBLs at platform-switching and platform-matching implant abutments in 2-implant bar-retained IODs. Materials and methods: Two interforaminal implants were placed in 32 subjects, who were randomly assigned to either an immediate-or a 3-month post-placement loading group. Furthermore, one implant in each subject was randomly assigned to receive a platform-switched abutment (test), and one a platform-matching abutment (control). The implants were splinted with prefabricated, chairside customized bars. ΔIBL was recorded by using customized radiograph holders at implant placement, implant loading, 3 months, 6 months, and 12 months after loading. Results: After 1 year, equivalent ΔIBL could be identified (test: −0.51 mm ± 0.49 versus control: −0.56 mm ± 0.52; p < .001). ΔIBL increased over time and was more pronounced in the delayed-loaded implants (−0.87 mm ± 0.61) relative to the immediately loaded implants (−0.35 mm ± 0.43; p = .022). Conclusions: The prosthetic concept of platform switching does not necessarily lead to reduced bone loss. Immediate-loading of implants, primarily splinted with a bar, might be beneficial regarding peri-implant bone-level alterations over a short-term period.

show abstract

“…13 Bu dizayndaki platform switching modeli, implantdayanak birleşiminin çapının azaltılmasının dayanağın overdentureların posterior bölgesindeki okluzal yüklere karşı direncini azalttığından dolayı mandibuler implantmukozal destekli protezlerde tavsiye edilmemektedir. 19…”

Section: Platformunclassified