5 years ago

Zirconia abutments for single-tooth implant restorations: a 10- to 11-year follow-up study

Anders Ekfeldt, Björn Fürst, Gunnar E. Carlsson
Objectives To evaluate the clinical outcome of custom-made zirconia abutments for implant-supported single-tooth restorations 10–11 years after insertion. Material and methods The study comprises a clinical examination of 23 patients with 30 restorations placed 10–11 years ago. Oral surgeons placed the implants. The prosthodontic treatment was provided at a prosthodontic specialist clinic. The restoration was either an all-ceramic crown for cementation or a screw-retained one-piece restoration with the veneering porcelain baked directly to the zirconia abutment. Besides the clinical and radiographic examination at the 10- to 11-year follow-up, the patients’ records were scrutinized regarding clinical and radiographic data from insertion of the restoration up to the last visit at the clinic. Results The zirconia abutments performed well. Both technical and biological complications were rare; most patients were in general extremely satisfied with the restorations. No all-ceramic crowns fractured during the observation period. One implant was lost after 5½ years in service. There were no significant differences for changes in any of the soft tissue registrations or the peri-implant marginal bone level between the conventional two-piece abutment-crown restoration and the one-piece restoration. The peri-implant bone level changes from placement to the clinical examination 10–11 years later were small (mean 0.26 mm, SD 0.6 mm). Conclusions Zirconia abutments for single-implant crowns demonstrated excellent technical and biological results over 10–11 years of function, and most patients were extremely satisfied with the aesthetics and the function of their single-implant restorations.

Publisher URL: http://onlinelibrary.wiley.com/resolve/doi

DOI: 10.1111/clr.12975

You might also like
Discover & Discuss Important Research

Keeping up-to-date with research can feel impossible, with papers being published faster than you'll ever be able to read them. That's where Researcher comes in: we're simplifying discovery and making important discussions happen. With over 19,000 sources, including peer-reviewed journals, preprints, blogs, universities, podcasts and Live events across 10 research areas, you'll never miss what's important to you. It's like social media, but better. Oh, and we should mention - it's free.

  • Download from Google Play
  • Download from App Store
  • Download from AppInChina

Researcher displays publicly available abstracts and doesn’t host any full article content. If the content is open access, we will direct clicks from the abstracts to the publisher website and display the PDF copy on our platform. Clicks to view the full text will be directed to the publisher website, where only users with subscriptions or access through their institution are able to view the full article.