1Berglundh T, et al. The soft tissue barrier at implants and teeth.Clin Oral Impl Res, 1991,2:81.
2Schou S, et al. Ligature-induced marginal inflammation around osseointegrated implants and ankylosed teeth: stereologic and histologic observations in cynomolgus monkeys. J Periodontol, 1993,64:529
3Francisco HN, et al. Evaluation of guided hone regeneration and/or bone grafts in the treatment of ligature-induced peri-implantitis defects: a morphometric study in dogs. Oral Impl, 2000,(4):244
4Persson LG, et al. Osseintegration following treatment of peri-implantitis and replacement of implant components. An experimental study in the dog. J Clin Periodontol, 2001,28:258.
5D. T. Graves, et al, Interleukin-1 and tumor necrosis fator antagonists inhibit the progression of inflammatory cell infiltration toward alveolar bone in experimental periodontitis. J Periodontal, 1998,69:1419
6Delima AJ, et al. Soluble antagonists to interleukin-1 (IL-1) and tumor necrosis factor (TNF) inhibits loss of tissue attachment in experimental periodontitis. J Clin Periodontol, 2001,28:233
