1. Dental Practice Board. Digest of statistics, 2004. Eastbourne: DPB, 2004.
2. Dental Practice Board. Digest of statistics, 2001. Eastbourne: DPB, 2001.
3. Dental Practice Board. Digest of statistics, 2002. Eastbourne: DPB, 2002.
4. Dental Practice Board. Digest of statistics, 2003. Eastbourne: DPB, 2003.
5. Robinson A D . The life of a filling. Br Dent J 1971; 130: 206–208.