- ARCH Research Site https://hedc.sharepoint.com/sites/ARCH/
- EviDent, Australia http://www.evident.net.au
- Scottish Dental PBRN, UK http://www.sdpbrn.org.uk
- National Dental PBRN, USA http://www.nationaldentalpbrn.org
- Pearl Dental PBRN, USA http://www.pearlnetwork.org
- BRIDGE PBRN, UK http://www.gdp-research.org.uk