Portal de Periódicos da CAPES

Influence of titanium implant surface characteristics on bone regeneration in dehiscence‐type defects: an experimental study in dogs

2010; Wiley; Volume: 37; Issue: 5 Linguagem: Inglês

10.1111/j.1600-051x.2010.01533.x

1600-051X

Frank Schwarz, Martin Sager, Ines Kadelka, Daniel Ferrari, Jürgen Becker,

Bone Tissue Engineering Materials

Schwarz F, Sager M, Kadelka I, Ferrari D, Becker J. Influence of titanium implant surface characteristics on bone regeneration in dehiscence‐type defects: an experimental study in dogs. J Clin Periodontol 2010; 37: 466–473 doi: 10.1111/j.1600‐051X.2010.01533.x. Abstract Objectives: The aim of the present study was to compare bone regeneration in dehiscence‐type defects at titanium implants with chemically modified sandblasted/acid‐etched (modSLA) or dual acid‐etched surfaces with a calcium phosphate nanometre particle modification (DCD/CaP). Materials and Methods: Buccal dehiscence‐type defects were surgically created following implant site preparation in both the upper and the lower jaws of 12 fox hounds. Both types of implants were randomly allocated in a split‐mouth design and left to heal in a submerged position for 2 and 8 weeks. Dissected blocks were processed for histomorphometrical analysis [e.g. new bone height (NBH), percentage of bone‐to‐implant contact (BIC), area of new bone fill (BF), and area of mineralized tissue (MT) within BF]. Results: At 2 and 8 weeks, both groups revealed comparable mean BF (2.3±0.6 to 2.5±0.6 mm 2 versus 2.0±0.6 to 1.4±0.5 mm 2 ) and MT (31.1±14.3–83.2±8.2% versus 38.9±15.9–84.4±6.3%) values. However, modSLA implants revealed significantly higher mean NBH (2.4±0.8 to 3.6±0.3 mm versus 0.9±0.8 to 1.8±1.4 mm) and BIC (53.3±11.3–79.5±6.6% versus 19.3±16.4–47.2±30.7%) values than DCD/CaP implants. Conclusion: ModSLA implants may have a higher potential to support osseointegration in dehiscence‐type defects than DCD/CaP implants.