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Safety and efficacy of a novel anodized abutment on soft tissue healing in Yucatan mini‐pigs
Author(s) -
Susin Cristiano,
Finger Stadler Amanda,
Fiorini Tiago,
Sousa Rabelo Mariana,
Ramos Umberto D.,
Schüpbach Peter
Publication year - 2019
Publication title -
clinical implant dentistry and related research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.338
H-Index - 85
eISSN - 1708-8208
pISSN - 1523-0899
DOI - 10.1111/cid.12755
Subject(s) - osseointegration , dentistry , abutment , implant , medicine , soft tissue , quadrant (abdomen) , titanium , dental abutments , anodizing , materials science , surgery , metallurgy , aluminium , civil engineering , engineering
Abstract Background It is well established that electrochemical anodization of implant surfaces contributes to osseointegration and long‐term implant survival. Few studies have investigated its effect on soft tissue healing. Purpose To evaluate the safety and efficacy of a novel abutment surface prepared by electrochemical oxidation compared to commercially available machined titanium abutments. Materials and Methods Twelve 16‐19 months‐old, Yucatan mini‐pigs received three dental implants in each mandibular jaw quadrant. Each side was randomized to receive either an anodized or a machined titanium abutment. Titanium healing caps were placed on both abutments. Animals were euthanized at 6 and 13 weeks. Radiographic and histological analyses were performed. Results No significant differences were observed histologically between groups in regard to inflammation, epithelium length, mucosal height, bone‐to‐implant contact, or bone density for any time point. Radiographically, crestal bone level change from baseline to 6 weeks was significantly lower for anodized than machined abutments ( P = 0.046); no significant differences were observed at 13 weeks ( P = 0.12). Conclusions The novel anodized abutment showed a comparable effect on soft and hard tissue healing/remodeling and inflammation reaction to standard titanium abutments. Clinical studies should confirm these findings and explore the positive radiographic results observed at the early time point.