On1™ concept

Preserve the soft-tissue attachment without compromising flexibility.

Featuring Xeal: the pioneering Mucointegration™ surface.

What is the On1 concept?

The On1 concept preserves connective tissue structure while offering full restorative and surgical flexibility. The concept simplifies the restorative procedure by moving the platform from bone level to tissue level.  
The On1 Base is connected to the implant during surgery and remains in position during the restorative process, minimizing disruption of the soft tissue.

Preserve the connective tissue structure

The connective tissue structure is left intact as the On1 Base remains in situ during the entire restorative workflow and throughout the lifetime of the restoration. Leaving the base in situ is in favor of marginal bone preservation and soft-tissue health.1,2

Xeal surface

Xeal is a pioneering surface for soft-tissue integration.3-5 It is a smooth non-porous, nanostructured and anodized surface and possesses surface chemistry and topography that are specially designed to promote soft-tissue attachment.3,6

Simplify all restorative procedures

The On1 Base moves the prosthetic platform from bone level to tissue level. This makes attachment of restorative components and impression taking much easier as the connection is clearly visible.

Gain peace of mind

The On1 Base has a unique prosthetic connection, ensuring that only precision-engineered Nobel Biocare restorations are used.

Restorative flexibility

The On1 concept allows flexibility in the choice of On1 Base abutments depending on the thickness of the soft tissue, as well as giving the choice with the option to follow a conventional impression taking or an intraoral scanning workflow.


Choice of workflows

The On1 concept provides you with the option to follow the conventional impression taking or the intraoral scanning workflow using the special On1 IOS (Intraoral Scannable) Healing Cap which also acts as an intraoral scan abutment.

Choice of bases

Choice of On1 Base height to suit soft tissue thickness and increase treatment flexibility.

Choice of abutments

Choice of cement or screw-retained final restoration, depending on indication or clinical preference.

Preserves and promotes tissue attachment3,6

Shown to be safe and effective in a multi‐center investigation after 1 year of function with a mean bone gain of 0.26 mm from 6 to 12 months7

As strong as other prefabricated Nobel Biocare titanium abutments6,8


On1 concept Instructions For Use

Important information and step-by-step instructions to help guide you through the On1 procedure from start to finish.

Questions about the On1 concept?

If you would like additional information, more details, or have specific questions about the On1 concept, click the link below.


“With On1 you get the best of both worlds – a bone-level implant with built-in platform shifting and restoration at tissue level without disturbing the mucosal seal.“





See Instructions For Use for full prescribing information, including indications, contraindications, warnings and precautions.

  1. Wang QQ, Dai R, Cao CY, et al. One-time versus repeated abutment connection for platform-switched implant: A systematic review and meta-analysis. PLoS One 2017;12(10):e0186385. 
    Read on PubMed
  2. Tallarico M, Caneva M, Meloni SM, et al. Definitive Abutments Placed at Implant Insertion and Never Removed: Is It an Effective Approach? A Systematic Review and Meta-Analysis of Randomized Controlled Trials. J Oral Maxillofac Surg 2018;76(2):316-24. 
    Read on PubMed
  3. Susin C, Finger Stadler A, Fiorini T, et al. Safety and efficacy of a novel anodized abutment on soft tissue healing in Yucatan mini-pigs. Clin Implant Dent Relat Res 2019;21(Suppl 1):34-43. 
    Read online
  4. Roffel S, Wu G, Nedeljkovic I, et al. Evaluation of a novel oral mucosa in vitro implantation model for analysis of molecular interactions with dental abutment surfaces. Clin Implant Dent Relat Res 2019;21(Suppl 1):25-33.  
    Read online
  5. Hall J, Neilands J, Davies JR, et al. A randomized, controlled, clinical study on a new titanium oxide abutment surface for improved healing and soft tissue health. Clin Implant Dent Relat Res 2019;21(Suppl 1):55-68. 
    Read online
  6. Nobel Biocare. Data on File.
  7. Rompen E, Fabbri G, Staas T, et al. Clinical investigation of the On1 two‐piece abutment concept – preliminary results. Clin Oral Implants Res 2018;29(Suppl. 17):319
    Read the abstract
  8. Fuchs F, Mader M, Heuberger P, Rompen EH. Fatigue performance of the On1 restorative system. J Dent Res 2017;96(Spec Iss A):3351, (www.iadr.org). 
    Read the abstract