Immediate Loading of Single Implants in the Anterior Maxilla: A 1-Year Prospective Clinical Study on 34 Patients

Abstract EN

Purpose.

To present the outcomes of immediately loaded single implants placed in the anterior maxilla.

Methods.

Over a 2-year period, all patients referred to a private clinic were considered for enrolment in this study.

Inclusion criteria were single-tooth placement in postextraction sockets or healed sites of the anterior maxilla.

All implants were immediately loaded and followed for a period of 1 year after the placement of definitive crowns.

The outcome measures were implant stability, survival, and success.

Results.

34 patients were selected and 43 tapered implants with a knife-edge thread design and a nanostructured, calcium-incorporated surface (Anyridge®, Megagen, Gyeongsang, Korea) were installed.

Two implants were not sufficiently stable at placement (ISQ < 60) and were considered failed for immediate loading; 41 implants had an ISQ ≥ 60 at placement and were immediately loaded.

One year after the placement of definitive crowns, no implant failures were reported, for a survival rate of 100%.

No biological complications were found, but 2 implants had their prosthetic abutments loosened: the implant success rate was 95.2%.

Conclusions.

In the present study on the immediate loading of single implants in the anterior maxilla, positive outcomes were reported, with high survival (100%) and success (95.2%) rates (the present study has been registered in the ISRCTN registry, a publicly available trial register recognized by WHO and ICMJE, with number ISRCTN12935478).