Benefits of an Implant Platform Modification Technique to Reduce Crestal Bone Resorption

X, Vela-Nebot; Rodríguez-Ciurana, Xavier; Rodado-Alonso, Carlos; Segalà-Torres, Maribel

doi:10.1097/01.id.0000226788.19742.32

Cited by 105 publications

(121 citation statements)

References 13 publications

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“…The mean marginal bone loss from baseline to 12th months at mesial and distal was 0.76 and 0.72 mm respectively. These were statistically found to be significant and was in accordance to the study conducted by Xavier VN et al 17 who…”

supporting

confidence: 80%

“…This method was selected because it is easily done on the chair side, by using IOPA radiograph with 1 mm 2 grid, later adobe Photoshop and screen caliper software can be used to detect bone loss. It also prevents patient from large radiation exposure of CT scan and Platform-switched implants reduce bone loss by: (A) maintenance of biological width and increased distance of IAJ from the crestal bone level and horizontal biological width is established, 15 (B) shifting the inflammatory cell infiltrate inward and away from the adjacent crestal bone because of difference in diameter of implant and abutment, 16,17 (C) decreased stress levels in the peri-implant bone, because distance between abutment and bone is increased in platformswitching and 18 (D) the possible influence of microgap on the crestal bone is diminished.…”

Section: Discussionmentioning

confidence: 99%

“…The advantages of platformswitching in implant dentistry are well documented in the literature. [16][17][18][19] Therefore, the objectives of the present study were to review marginal bone-level changes around platformswitched implants.…”

Section: Introductionmentioning

confidence: 99%

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Evaluation of Marginal Bone Level around Platform-Switched Implants

Sharma¹,

Kapoor²,

Singh³

et al. 2014

International Journal of Prosthodontics and Restorative Dentistry

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Purpose: The long-term success of an implant depends on the stability of bone support for the implant. Most crestal bone loss occurs in the first year of implant placement. Platform-switching is an approach which can be clinically applied to preserve the crestal bone. The concept of 'platform switching' refers to the use of a smaller-diameter abutment on a larger-diameter implant collar. The purpose of the present study was to evaluate crestal bone level around platform-switched implants. Materials and methods:Twenty implants with 5 mm diameter were placed in mandibular molar region. All implants had been placed at the crestal level at the time of surgery. Radiographs with grid were obtained 3, 6 and 12 months after loading and were evaluated by screen caliper software measuring the location of the crestal bone level relative to the implant platform. Results:The implants showed a mean bone loss of 0.76 ± 0.1265 mm on mesial side and 0.72 ± 0.1481 mm on distal side after 1 year. Conclusion:The findings of the current trial indicated that the use platform-switched implants lead to better preservation of crestal bone.

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supporting

confidence: 80%

Section: Discussionmentioning

confidence: 99%

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Evaluation of Marginal Bone Level around Platform-Switched Implants

Sharma¹,

Kapoor²,

Singh³

et al. 2014

International Journal of Prosthodontics and Restorative Dentistry

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“…Platform expansion in post-extraction situations makes it possible to minimize the gap between the recently extracted tooth bed and the implant, acting as a physical barrier against the penetration of bacteria in the zone of contact between the bone and implant. This increase in diameter favors improved primary stability (15,(28)(29)(30)(31).…”

Section: E404mentioning

confidence: 99%

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

Serrano-Sánchez¹,

Calvo-Guirado²,

Manzanera-Pastor³

et al. 2011

Med Oral

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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.

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“…7 Recently, the reduction of crestal bone loss around an implant was described in a recent radiologicclinical follow-up study in which implants with prosthetic connections of smaller diameter than the implant platform were used. [8][9][10][11] This phenomenon became a new implant concept known as platform switching, seems to reduce bone loss caused by the microgap, and may be correlated with a more internal localization of the IAJ with respect to the external rim of the implant platform. 8 The biologic process responsible for this occurrence seem to be linked to distancing of the inflammatory connective tissue infiltrate from the alveolar crest, and this in turn results from a more inward displacement of the microgap on the implant platform.…”

Section: Introductionmentioning

confidence: 99%

Photoelastic Comparison of Single Tooth Implant-Abutment-Bone of Platform Switching vs Conventional Implant Designs

Rossi¹,

Zavanelli²,

Zavanelli³

2011

The Journal of Contemporary Dental Practice

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Objectives:The maintenance and stability of peri-implantar soft tissue seem to be related to the crestal bone around the implant platform and different implant designs connections might affect this phenomenon. The aim of this study was to evaluate by photoelastic analysis the stress distribution in the cervical and apical site of implant-abutment interface of conventional implant joints (external hex, internal hex and cone morse) and compare to the novel platform switching design. Materials and methods:It was fabricated photoelastic models using five different implant-abutment connection, one set of external hex (Alvim Ti, Neodent, Curitiba, Brazil), one set of internal hex (Full Osseotite, Biomet 3i, Florida, USA), one cone morse set (Alvim CM, Neodent, Curitiba, Brazil), and two sets of internal hex plus platform switching concept (Alvim II Plus, Neodent, Curitiba, Brazil) (Certain Prevail, Biomet 3i, Florida, USA). These models were submitted to two compressive loads, axial from 20 kgf (load I) and another (load II), inclined 45° from 10 kgf. During the qualitative analysis, digital pictures were taken from a polariscope, for each load situation. For the quantitative analyses in both situations of load, the medium, minimum and maximum in MPa values of shear strain were determined in the cervical and apical site. The Kruskal-Wallis test was used to compare the results between the different systems and between cervical and apical site were compared using Mann-Whitney U test. Results:The results from qualitative analysis showed less concentration of strain in the cervical area to the internal hex plus platform switching (Certain Prevail), in both situation of load. The same results were get in the quantitative analysis, showing less stress concentrations around the implant Certain Prevail with internal hex plus the novel design (17.9 MPa to load I and 29.5 MPa to load II), however, without statistical significant difference between the systems. Conclusion:The minor stress concentration strongly suggest the use of platform switching design as a manner to prevent bone loss around the implant-abutment platform.Clinical Significance: From the result of this study its possible to make clinical decision for implant system which provides implant components with platform switching characteristics.

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Benefits of an Implant Platform Modification Technique to Reduce Crestal Bone Resorption

Abstract: All patients in the study group had a significant reduction of bone loss in comparison to the control group (P < 0.0005).

Cited by 105 publications

References 13 publications

Evaluation of Marginal Bone Level around Platform-Switched Implants

Evaluation of Marginal Bone Level around Platform-Switched Implants

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

Photoelastic Comparison of Single Tooth Implant-Abutment-Bone of Platform Switching vs Conventional Implant Designs

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