Learning Objectives: BHCD in children operated with tissuepreserving technique has a better outcome.

Objectives: A tissue preserving surgical technique has shown no increased inflammatory reactions after a non- skin reduction technique in adults. Objective was to evaluate in children the extent of the stability, the skin in contact with the device, numbness and clinical signs and symptoms of inflammation or infection at the site of the skin penetration.

Methods: A single-centre clinical investigation comparing the surgical technique without the skin thinning procedure with the results from earlier techniques, now using longer individualized abutments. Participants in the study were included consecutively and operated in general surgery in a day surgery setting. The Ostell instrument for registration of stability was used.

Results: Clinically there were no surface related adverse events, nor were any skin reactions noted in the test or control groups during 12 months follow up. Numbers of stability with RFA is given.

Conclusions: This human clinical trial in children, as compared to earlier techniques support and extend findings of newer surgical tissue preserving techniques, with good tissue response and no surface related adverse events.