smile, please

n This is a week made for Anthea Turner, National Smile Week. Time to make those gnashers work, extend those lips, twinkle at the postman and the bus driver, and pray you haven't got muesli on your molars.

It's not actually so much to do with making the world a cheerier place (though if it serves that purpose, too, that would be no bad thing). No, it's all about oral hygiene and tooth maintenance. In Castlemilk, for example, on Wednesday and Thursday, you'll find relays of first and second-year pupils being ushered into an exhibition called Show Your Teeth You Care staged by 20 dental hygiene students from the School of Dental Auxiliaries at the Glasgow Dental Hospital.

Tutor Margaret Ross says it's not just about skiving off from science and geography, it's about how to care for gums and teeth and get that gorgeous grin as perfected by your TV heroes and heroines. Sugar-free products will be offered as a way of educating kids against the sugary stodge for which the West of Scotland is still notorious.

Toothbrushes will be distributed, plaque prevention demonstrated, and two electric tooth brushes offered as prizes.

''It's a good time to catch the pupils just as their second teeth are coming through,'' says Margaret Ross. It's also very good experience for the students, who do a lot of outside demonstrations as part of their training. Now smile, please . . . and put that chocolate biscuit back in the packet.