1. Nugent Z J, Pitts N B . Patterns of change and results overview 1985-6 –1995/6 from the British Association for the Study of Community Dentistry (BASCD) coordinated National Health Service surveys of caries prevalence. Community Dent Health 1997; 14 (Supp 1): 30–54.
2. Jackson D . Measuring restorative dental care in communities. Br Dent J 1973; 13: 51–58.
3. GDS quarterly statistics . Registrations: October-December 1997, England and Wales, March 1998. Dental Practice Board, Eastbourne.
4. Curzon M E J, Pollard M A. Do we still care about children's teeth. Br Dent J 1997; 182: 242–244.
5. Silver D H . A comparison of 3-year-old's caries experience in 1973, 1981, and 1989 in a Herefordshire town, related to family behaviour and social class. Br Dent J 1992; 172: 191–197.