Bob blwyddyn, mae dros 90,000 o blant mewn 1,200 o ysgolion a meithrinfeydd yn cymryd rhan mewn cynllun brwsio dannedd a gynhelir gan y Cynllun Gwên.
Each year over 90,000 children in 1,200 schools and nurseries take part in the tooth brushing scheme run by Designed to Smile.