“…It has been well documented that there exists a socio-economic gradient in oral health, i.e., individuals from the lower end of the socio-economic scale usually have a worse oral health status than do individuals with higher socio-economic status (Watt and Sheiham, 1999;Locker, 2000;Gilbert et al, 2003;Enjary et al, 2006;Jamieson and Thomson, 2006;López et al, 2006;Makhija et al, 2006;Sanders et al, 2006;Tellez et al, 2006;Armfield, 2007;Watt, 2007;Holst, 2008;Du et al, 2009;Tsakos et al, 2009;Do et al, 2010;Ståhlnacke et al, 2010;Bernabé and Marcenes, 2010). While there is disagreement about the exact explanation for such a socio-economic gradient in oral health (Petersen, 2005;Brunner and Marmot, 2006;Sisson, 2007), it has frequently been suggested that dental attendance patterns are one pathway through which differences in oral health may emerge.…”