1. Kelly M, Steele J, Bradnock G . et al. Adult Dental Health. Oral Health in the United Kingdom 1998. London: The Stationery Office, 2000.
2. Pine C M . Community Oral Health. Oxford: Butterworth-Heinemann. 1997.
3. Pink F E, Minden N J, Simmonds S . Decisions of practitioners regarding placement of amalgam and composite restorations in general practice settings. Oper Dent 1994; 19: 127–132.
4. Burke F J, Cheung S W, Mjor I A, Wilson N H . Restoration longevity and analysis of reasons for the palcement and replacement of restorations provided by vocational dental practitioners and their trainers in the United Kingdom. Quintessence Int 1999; 30: 234–242.
5. Kalsbeek H, Truin G J, van Rossum G M, van Rijkom H M, Pooterman J H, Verrips G H . Trends in caries prevalence in Dutch adults between 1983 and 1995. Caries Res 1998; 32: 160–165.