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Antimicrobial effects of three different treatment modalities on dental implant surfaces.

Artikel i vetenskaplig tidskrift
Författare Olav Inge Larsen
Morten Enersen
Anne Karin Kristoffersen
Ann Wennerberg
Dagmar F Bunæs
Stein Atle Lie
Knut N Leknes
Publicerad i The Journal of oral implantology
Volym 43
Nummer/häfte 6
Sidor 429-436
ISSN 1548-1336
Publiceringsår 2017
Publicerad vid Institutionen för odontologi
Sidor 429-436
Språk en
Länkar dx.doi.org/10.1563/aaid-joi-D-16-00...
www.ncbi.nlm.nih.gov/entrez/query.f...
Ämneskategorier Oral protetik

Sammanfattning

Resolution of peri-implant inflammation and re-osseointegration of peri-implantitis affected dental implants seem to be dependent on bacterial decontamination. The aims of the this study were to evaluate the antimicrobial effects of three different instrumentations on a micro-textured dental implant surface contaminated with an avirulent or a virulent Porphyromonas gingivalis strain and to determine alterations to the implant surface following instrumentation. Forty-five dental implants (Straumann SLA) were allocated to three treatment groups: Er:YAG laser, chitosan brush, and titanium curette (10 implants each), a positive (10 implants) and a negative (five implants) control. Each treatment group and the positive control were split into subgroups of five implants subsequently contaminated with either the avirulent or virulent P. gingivalis strain. The antimicrobial effect of instrumentation was evaluated using checkerboard DNA-DNA hybridization. Implant surface alterations were determined using a light interferometer. Instrumentation significantly reduced the number of attached P. gingivalis (p<0.001) with no significant differences among groups (p=0.310). A significant overall higher median score was found for virulent compared with avirulent P. gingivalis strains (p=0.007); the Er:YAG laser uniquely effective removing both bacterial strains. The titanium curette significantly altered the implant surface micro-texture. Neither the Er:YAG laser nor the chitosan brush significantly altered the implant surface. The three instrumentations appear to have a similar potential to remove P. gingivalis. The titanium curette significantly altered the microstructure of the implant surface.

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