O. Höskuldsson

Caries-preventive effect of fluoride dentifrices with and without anticalculus agents: a 3-year controlled clinical trial.

G. Koch, S. Bjarnason, R. Karlsson, 1990, Caries research.

The Child Dental Control Assessment (CDCA) in youth: reliability, validity and cross-cultural differences.

P. Milgrom, P. Weinstein, M. Heima, 2005, European journal of paediatric dentistry.