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Experimental periodontitis and peri-implantitis in dogs

Artikel i vetenskaplig tidskrift
Författare Olivier Carcuac
Ingemar Abrahamsson
Jean-Pierre Albouy
Elena Linder
Lena Larsson
Tord Berglundh
Publicerad i Clinical Oral Implants Research
Volym 24
Nummer/häfte 4
Sidor 363–371
ISSN 0905-7161
Publiceringsår 2013
Publicerad vid Institutionen för odontologi
Sidor 363–371
Språk en
Länkar dx.doi.org/10.1111/clr.12067
Ämnesord animal experiment, biopsy, bone, dental implant, histology, inflammation, lesion, peri-implant disease, periodontal disease, radiology
Ämneskategorier Parodontologi

Sammanfattning

Abstract Aim: To analyze the tissue reactions following ligature removal in experimental periodontitis and peri-implantitis in dogs. Material and methods: Four implants with similar geometry and with two different surface characteristics (turned/TiUnite Nobel BioCare AB, Go ̈ teborg) were placed pair-wise in a randomized order in the right side of the mandible 3 months after tooth extraction in 5 dogs. Experimental peri-implantitis and periodontitis were initiated 3 months later by ligature placement around implants and mandibular premolars and plaque formation. The ligatures were removed after 10 weeks, and block biopsies were obtained and prepared for histological analysis 6 months later. Results: It was demonstrated that the amount of bone loss that occurred during the period following ligature removal was significantly larger at implants with a modified surface than at implants with a turned surface and at teeth. The histological analysis revealed that peri-implantitis sites exhibited inflammatory cell infiltrates that were larger, extended closer to the bone crest and contained larger proportions of neutrophil granulocytes and osteoclasts than in periodontitis. Conclusion: It is suggested that lesions produced in experimental periodontitis, and peri- implantitis are different and that implant surface characteristics influence the inflammatory process in experimental peri-implantitis and the magnitude of the resulting tissue destruction.

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