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Spontaneous progression of ligature induced peri-implantitis at implants with different surface roughness: an experimental study in dogs.

Berglundh, Tord, 1954 (författare)
Gothenburg University,Göteborgs universitet,Institutionen för odontologi,Institute of Odontology
Gotfredsen, Klaus (författare)
Zitzmann, Nicola, 1967 (författare)
Gothenburg University,Göteborgs universitet,Institutionen för odontologi,Institute of Odontology
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Lang, Niklaus P (författare)
Lindhe, Jan, 1935 (författare)
Gothenburg University,Göteborgs universitet,Institutionen för odontologi,Institute of Odontology
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 (creator_code:org_t)
Wiley, 2007
2007
Engelska.
Ingår i: Clinical oral implants research. - : Wiley. - 0905-7161 .- 1600-0501. ; 18:5, s. 655-61
  • Tidskriftsartikel (refereegranskat)
Abstract Ämnesord
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  • BACKGROUND: Peri-implantitis is associated with the presence of submarginal plaque, soft-tissue inflammation and advanced breakdown of the supporting bone. The progression of peri-implantitis following varying periods of continuing plaque accumulation has been studied in animal models. OBJECTIVE: The aim of the current experiment was to study the progression of peri-implantitis around implants with different surface roughness. MATERIAL AND METHODS: In five beagle dogs, three implants with either a sandblasted acid-etched surface (SLA) or a polished surface (P) were installed bilaterally in the edentulous premolar regions. After 3 months on a plaque control regimen, experimental peri-implantitis was induced by ligature placement and plaque accumulation was allowed to progress until about 40% of the height of the supporting bone had been lost. After this 4-month period, ligatures were removed and plaque accumulation was continued for an additional 5 months. Radiographs of all implant sites were obtained before and after 'active' experimental peri-implantitis as well as at the end of the experiment. Biopsies were harvested and the tissue samples were prepared for light microscopy. The sections were used for histometric and morphometric examinations. RESULTS: The radiographic examinations indicated that similar amounts of bone loss occurred at SLA and P sites during the active breakdown period, while the progression of bone loss was larger at SLA than at polished sites following ligature removal. The histological examination revealed that both bone loss and the size of the inflammatory lesion in the connective tissue were larger in SLA than in polished implant sites. The area of plaque was also larger at implants with an SLA surface than at implants with a polished surface. CONCLUSION: It is suggested that the progression of peri-implantitis, if left untreated, is more pronounced at implants with a moderately rough surface than at implants with a polished surface.

Ämnesord

MEDICIN OCH HÄLSOVETENSKAP  -- Klinisk medicin -- Odontologi (hsv//swe)
MEDICAL AND HEALTH SCIENCES  -- Clinical Medicine -- Dentistry (hsv//eng)

Nyckelord

Acid Etching
Dental
Alveolar Bone Loss
pathology
physiopathology
Animals
Bicuspid
Biopsy
Connective Tissue
pathology
Dental Etching
Dental Implants
Dental Materials
chemistry
Dental Plaque
prevention & control
Dental Polishing
Dental Prosthesis Design
Disease Models
Animal
Disease Progression
Dogs
Jaw
Edentulous
Partially
surgery
Periodontitis
pathology
physiopathology
Surface Properties
Time Factors
Titanium
chemistry

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