Soft tissue health at novel two-piece anodized abutments: 1-year results from a prospective study
Robust formation of soft tissue and adherence onto the abutment and restoration surfaces is crucial for the long-term success of implant therapy and can be impacted by abutment surface modifications and abutment dis- and re-connection during the prosthetic phase (1). To optimize tissue integration at every level, novel anodized implant and abutment surfaces were developed. The implant surface (TiUltra™, Nobel Biocare) has a gradual change in topography designed to promote early osseointegration and support stable marginal bone. The nanostructured, non-porous anodized surface (Xeal™, Nobel Biocare) of the base of the two-piece abutment was designed to promote undisturbed soft-tissue healing and mucointegration (2).
This study aims to evaluate the clinical, radio-logical, and soft tissue-level performance of a two-piece abutment concept with a novel nanostructured anodized abutment base and a novel anodized implant surface.
- Keratinized mucosa status improved from implant insertion to prosthetic delivery and remained stable thereafter, with its height increasing from 3.7 mm to 4.0 mm at 1-year follow-up.
- Bleeding index and Jemt’s papilla score improved, while gingival index remained stable from prosthetic delivery to 1 year.
- Evaluation of intra-oral optimal scan overlays showed coronal migration of the mucosal margin and increased tissue thickness from prosthetic delivery to the 6-month follow-up, which remained stable from 6 months to 1 year.
- After initial post-implantation remodeling (-1.09±1.2 mm at prosthetic delivery), MBLC began stabilizing by 6 months (-0.28±1.24 mm) and subsequently increased from 6 months to 1 year by +0.21±0.51 mm.
Presented at 29th Annual Scientific Meeting of the European Association for Osseointegration (EAO Uniting Nations through Innovations), 29 September to 1 October 2022.
Fabbri G, Ban G, Noh K, Lim H-C. (September 2022) EAO-427/PO-57-CL_PIB | Soft tissue health at novel two-piece anodized abutments: 1-year results from a prospective study. In Special Issue: Uniting Nations through Innovations by the European Association for Osseointegration 28 September-1 October 2022, Clin Oral Impl Res; Vol 33 (S24): 107-108. https://onlinelibrary.wiley.com/toc/16000501/2022/33/S24
1. On implant surfaces: a review of current knowledge and opinions. A Wennerberg, T Albrektsson. Int J Oral Maxillofac Implants. 2010; 25:63‐74.
2. Rational design and in vitro characterization of novel dental implant and abutment surfaces for balancing clinical and biological needs. V Milleret, P S Lienemann, A Gasser, S Bauer, M Ehrbar, A Wennerberg. Clin Implant Dent Relat Res. 2019 Mar; 21 Suppl 1:15-24. https://onlinelibrary.wiley.com/doi/10.1111/cid.12736