The most common oral diseases among children are gingivitis and dental caries the latter affecting 60-90% of children globally (Petersen, 2003; WHO/CAPP, 2013b). Dental caries is progressive and cumulative in nature and becomes more complex over time. If untreated it can affect children’s quality of life, e.g. ability to eat and chew, the food they choose, how they look and the way they communicate. Pain from teeth or mouth can compromise their concentration and their participation in school, thereby hampering not only their play and development but also denying them the full bene t of schooling (Petersen et al., 2005).