| 1851 Histological Examination of the Epithelial and Connective Tissue Wall in Shallow and Deep Peri-Implant Pockets | ||
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G. ZAMPELIS1, I. PANAYIOTIDES2, E. STATHOPOULOS2, and A. ZAMPELIS3, 1 Dental School of the university of Athens Greece, Greece, 2 Medical School University of Crete, Athens, Greece, 3 Private Practitioner, Athens, Greece Periodontal and periimplant soft tissues share a lot of common features concerning their structure and function . However , clinical differences occur in the periimplant soft tissues by means of varying dimensions (volume , thickness) and clinical appearance (pale pink , bright red colour). Objectives: The aim of this study is to examine histologically this clinical demonstration . Methods: Thirty (30) samples of periimplant tissue (biopsies) were gathered in total , 15 with a thickness of 3mm and 15 with a thickness of 6mm . Á histological and histochemical examination was performed , including Á&Ç , Masson , Gomori, PAS and monoclonal antibodies . Results: The results indicate a high concentration of collagen , up to 80%, for both groups . Collagen gingival fibers parallel to the sulcular epithelium were present in both groups , while in a few cases fibers of irregular direction existed also . Thick fibrous connective tissue was a common finding , while in one case the connective tissue appeared to be soft and in 2-3 cases it appeared to be slightly haedematous . The connective tissue adjacent to the sulcular epithelium demonstrated intense vascularity compared to the connective tissue farther from the sulcular epithelium . Furthermore , vascularity was more intense in the thicker samples than in the thinner ones . Heavy inflammatory infiltration was not observed in the majority of both groups' samples .Á slight presence of "young" Ô and  lemphocytes was detected in both groups in the upper layers of the connective tissue , while in the deeper part, close to the implant-abutment connection , nï indication of inflammatory reaction was present. Conclusions: It is concluded that the difference in clinical appearance of the inner wall of the free periimplant gingiva in thicker samples is attributed to more intense vascularity of the connective tissue, rather than a result of inflammatory reaction . The study was supported by the Universities of Athens and Crete . | ||
| Seq #193 - Implant Histology and Bone Regeneration 1:45 PM-3:45 PM, Friday, 27 June 2003 Svenska Massan H1 | ||
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