Abrasivity of toothbrushes and dental materials

This research focuses on toothpastes and toothbrushes particularly the abrasive effect. We have developed a method that enables measurement of the abrasive effect both qualitatively, i.e. the roughness after brushing and quantitatively i.e. the amount of reduced material. Furthermore, we have investigated the importance of  surface roughness on bacterial growth.

Principal Investigator

  • Gunnar Johannsen, Lecturer, Division of Periodontology


Peri-implantitis - a novel treatment method and a clinical application

The aim is to examine the effects of laser treatment of peri-implantitis and also examine patients' perceptions and experiences of the disease regarding e.g. quality of life, as well as the gene profile.