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- Title
Soft tissue histomorphology at implants with a transmucosal modified surface. A study in minipigs.
- Authors
Liñares, Antonio; Muñoz, Fernando; Permuy, María; Dard, Michel; Blanco, Juan
- Abstract
Objectives To investigate soft tissue histomorphology and quality around implants with a modified transgingival collar surface comparatively to a machined. Material and methods Twenty-seven Straumann Standard Tissue Level implants belonging to the following groups (nine of each group): Ti mod SLA with machined collar ( Ti- M), Ti mod SLA with machined, acid-etched surface collar ( Ti-mod MA), and Ti Zr mod SLA with machined, acid-etched surface collar ( Ti Zr-mod MA) were placed in the mandible of six minipigs. After 8 weeks of healing, buccal sections were obtained and processed for histological evaluation. Results Histometric soft tissue outcomes were similar for the three types of implants. The percentage of connective tissue attached to implant surface and its length was longer at Ti Zr-mod MA with respect to Ti- M implants. The number of inflammatory cells was slightly higher at the Ti Zr-mod MA with respect to Ti- M implant. The percentage of area occupied by perpendicular collagen fibers was slightly higher for the modified surfaces in comparison with the machined. Conclusions Modified implant collar surfaces at Ti and Ti Zr implants showed a soft tissue interface similar to machined. A tendency of increasing number of perpendicular collagen fibers and improved connective tissue contact was found at the modified implant surfaces.
- Subjects
COLLAGEN; DENTAL implants; MUCOSITIS; SOFT tissue infections; ORAL hygiene
- Publication
Clinical Oral Implants Research, 2015, Vol 26, Issue 9, p996
- ISSN
0905-7161
- Publication type
Article
- DOI
10.1111/clr.12417