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Oral Implantology

A NEW SYSTEM OF IMPLANT ABUTMENT CONNECTION: HOW TO IMPROVE A TWO PIECE IMPLANT SYSTEM SEALING

Review, 234 - 240
doi: 10.11138/orl/2017.10.3.234
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Abstract
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Purpose. Implant dentistry has become one of the most successful dentistry techniques for replacing missing teeth. The success rate of implant dentistry is above 80%. However, peri-implantitis is a later complication of implant dentistry that if untreated, can lead to implant loss. One of the hypotized causes of peri-implantis is the bacterial leakage at the level of implant-abutment connection. Bacterial leakage is favored to the presence of a micro gap at the implant-abutment interface, allowing microorganisms to penetrate and colonize the inner part of the implant leading to biofilm accumulation and consequently to peri-implantitis development.
Materials and methods. To identify the capability of the implant to protect the internal space from the external environment, the passage of genetically modified Escherichia coli across implant-abutment interface was evaluated. Implants were immerged in a bacterial culture for twenty-four hours and then bacteria amount was measured inside implant-abutment interface with Real-time PCR.
Results. Bacteria were detected inside all studied implants, with a median percentage of 9%.
Conclusions. The reported results are better to those of previous studies carried out on different implant systems. Until now, none implant-abutment system has been proven to seal the gap between implant and abutment.

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    doi: 10.11138/orl/2017.10.3.234
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