2.1. Objectives
caries
HYDROXYAPATITE, CARIES
The study objective was the investigation of the caries-preventing effect in adults aged 18–45 regularly using a fluoride-free, hydroxyapatite toothpaste (test toothpaste) or the fluoridated control toothpaste. The aim of the study was to compare the caries preventive effect of the test and control toothpaste to prove the non-inferiority of the test toothpaste compared with the control toothpaste.