“…One study revealed protective contextual effects on dental caries [Patussi et al, 2006a], whereas others found a lack of association between SC and oral dental trauma [Moyses et al, 2006;de Paiva et al, 2015]. SC in schools is an emerging topic of SC research of contemporary behavioural epidemiology, since children spend many hours in a school environment [Eriksson et al, 2012;Paiva et al, 2014], and contextual factors at school, such as physical school structure and social environment, may influence the health and well-being of children [Moyses et al, 2003;Kwan et al, 2005]. There is evidence that an unfavourable physical environment in schools can contribute to a lower quality of oral health [Moyses et al, 2003], higher accident rates [Malikaew et al, 2003;Patussi et al, 2006] and worse academic performance of students [Kwan et al, 2005].…”