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A New Strategy Against Peri-Implantitis: Antibacterial Internal Coating

Department of Morphology, Surgery and Experimental Medicine, University of Ferrara, 44121 Ferrara, Italy
Department of Medicine and Surgery, Centre of Neuroscience of Milan, University of Milan-Bicocca, 20900 Milan, Italy
Department of Chemical and Pharmaceutical Sciences, University of Ferrara, 44121 Ferrara, Italy
Department of Biomedical, Surgical and Dental Sciences University of Milan, 20122 Milan, Italy
Department of Oral Implantology, Dental Research Division, College Ingà, UNINGÁ, Cachoeiro de Itapemirim 29312, Brazil
Department of Oral Science, Nano and Biotechnology and CeSi-Met University of Chieti-Pescara, 66100 Chieti, Italy
Author to whom correspondence should be addressed.
These authors contributed equally to this work.
Int. J. Mol. Sci. 2019, 20(16), 3897;
Received: 1 August 2019 / Revised: 8 August 2019 / Accepted: 9 August 2019 / Published: 9 August 2019
(This article belongs to the Special Issue Advanced Implant Surface Modification and Tissue Engineering)
The bacterial biofilm formation in the oral cavity and the microbial activity around the implant tissue represent a potential factor on the interface between bone and implant fixture that could induce an inflammatory phenomenon and generate an increased risk for mucositis and peri-implantitis. The aim of the present clinical trial was to investigate the bacterial quality of a new antibacterial coating of the internal chamber of the implant in vivo at six months. The PIXIT implant (Edierre srl, Genova Italy) is prepared by coating the implant with an alcoholic solution containing polysiloxane oligomers and chlorhexidine gluconate at 1%. A total of 15 healthy patients (60 implants) with non-contributory past medical history (nine women and six men, all non-smokers, mean age of 53 years, ranging from 45–61 years) were scheduled to receive bilateral fixed prostheses or crown restorations supported by an implant fixture. No adverse effects and no implant failure were reported at four months. All experimental sites showed a good soft tissue healing at the experimental point times and no local evidence of inflammation was observed. Real-Time Polymerase Chain Reaction (PCR) analysis on coated and uncoated implants showed a decrease of the bacterial count in the internal part of the implant chamber. The mean of total bacteria loading (TBL) detected in each PCR reaction was lower in treated implants (81,038 units/reaction) compared to untreated implants (90,057 units/reaction) (p < 0.01). The polymeric chlorhexydine coating of the internal chamber of the implant showed the ability to control the bacterial loading at the level of the peri-implant tissue. Moreover, the investigation demonstrated that the coating is able to influence also the quality of the microbiota, in particular on the species involved in the pathogenesis of peri-implantitis that are involved with a higher risk of long-term failure of the dental implant restoration. View Full-Text
Keywords: peri-implantitis; implant dentistry; coating; chlorhexidine gluconate; bacterial loading peri-implantitis; implant dentistry; coating; chlorhexidine gluconate; bacterial loading
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MDPI and ACS Style

Carinci, F.; Lauritano, D.; Bignozzi, C.A.; Pazzi, D.; Candotto, V.; Santos de Oliveira, P.; Scarano, A. A New Strategy Against Peri-Implantitis: Antibacterial Internal Coating. Int. J. Mol. Sci. 2019, 20, 3897.

AMA Style

Carinci F, Lauritano D, Bignozzi CA, Pazzi D, Candotto V, Santos de Oliveira P, Scarano A. A New Strategy Against Peri-Implantitis: Antibacterial Internal Coating. International Journal of Molecular Sciences. 2019; 20(16):3897.

Chicago/Turabian Style

Carinci, Francesco, Dorina Lauritano, Carlo A. Bignozzi, Daniele Pazzi, Valentina Candotto, Paulo Santos de Oliveira, and Antonio Scarano. 2019. "A New Strategy Against Peri-Implantitis: Antibacterial Internal Coating" International Journal of Molecular Sciences 20, no. 16: 3897.

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