Investigating the micromorphological differences of the implant-abutment junction and their clinical implications: a pilot study

Clinical Oral Implants Research
Nikos MattheosMartin Janda

Abstract

The aim of this pilot study was to investigate the morphological micro-features of three commercially available implant-abutment joints, using compatible and original prosthetic components. Furthermore, possible correlations between the micromorphology and potential functional complications were investigated with the use of finite element analysis. Three abutments (one original and two compatibles) were torqued on original Straumann RN implants, as according to each of the manufacturer's instructions. The implant-abutment units were sliced in the microtome and photographed under different magnifications (10×-500×) through a scanning electron microscope. Finite element analysis models were reconstructed for each of the implant-abutment units using the precise measurements from the SEM. Differences in stress, strain and deformation for the three different abutments were then calculated using ANSYS Workbench v13. Major dimensional differences were identified between all studied contact areas of the three units. The tight contact in the implant shoulder was similar in all three units, but engagement of the internal connection and, in particular, the anti-rotation elements was seriously compromised in the compatible abutments. One c...Continue Reading

References

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Citations

Jul 23, 2020·International Journal of Implant Dentistry·Marcos Boaventura de MouraPaulo Cézar Simamoto Júnior
May 31, 2017·Journal of Esthetic and Restorative Dentistry : Official Publication of the American Academy of Esthetic Dentistry ... [et Al.]·Stefanos KourtisVasiliki Roussou
May 20, 2021·The Journal of Prosthetic Dentistry·Raquel Alonso-PérezGuillermo Pradíes

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