A new system of implant abutment connection: How to improve a two piece implant system sealing

F. Grecchi, M. Di Girolamo, F. Cura, V. Candotto, Francesco Carinci

Research output: Contribution to journalArticlepeer-review


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.

Original languageEnglish
Pages (from-to)234-240
Number of pages7
JournalORAL and Implantology
Issue number3
Publication statusPublished - Jul 1 2017
Externally publishedYes


  • Bacterial leakage
  • Bone resorption
  • Implant dentistry
  • Implant-abutment connection
  • Peri-implantitis

ASJC Scopus subject areas

  • Dentistry(all)


Dive into the research topics of 'A new system of implant abutment connection: How to improve a two piece implant system sealing'. Together they form a unique fingerprint.

Cite this