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Experimental Peri‐Implantitis around Different Types of Implants – A Clinical and Radiographic Study in Dogs

2015; Wiley; Volume: 17; Issue: S2 Linguagem: Inglês

10.1111/cid.12303

1708-8208

Stefan Fickl, Moritz Kebschull, José Luís Calvo‐Guirado, Markus B. Hürzeler, Otto Zuhr,

dental development and anomalies

Abstract Background The influence of the implant micro and macrostructure on peri‐implantitis is not fully understood. Purpose To determine the effect of ligature‐induced peri‐implantitis on three commercially available implant types. Materials and Methods Five beagle dogs were used. Two months following tooth extraction, three different implant types ( BIOMET 3i T 3, BIOMET 3i, Palm Beach Gardens, FL, USA; S traumann B one L evel, Straumann GmbH, Basel, Switzerland; N obel R eplace T apered, Nobel Biocare, Gothenburg, Sweden) were placed in a randomized fashion in each hemi‐mandible. Peri‐implantitis was initiated by ligature placement and soft diet. Ligatures were added every 2 weeks for a total of four ligature advancements. After 2 weeks, the ligatures were removed, oral hygiene measures initiated for 3 weeks, and clinical (probing depth, mucosal recession, bleeding on probing), intrasurgical (intrasurgical defect depth, intrasurgical defect width), and radiographic (radiographic bone level) parameters assessed. Results Nobel R eplace T apered implants showed significantly higher intrasurgical defect depth, intrasurgical defect width, probing depths, and radiographic bone level when compared to BIOMET 3i T 3 or S traumann B one L evel implants. Straumann B one L evel implants showed largely similar clinical outcomes to BIOMET 3i T 3. No significant differences between the groups were observed for mean mucosal recession. Conclusion In an experimental peri‐implantitis model, N obel R eplace T apered implants are associated with pronounced tissue loss.