Materialise NV
http://www.materialise.be
http://www.simplant.com

Imaging Sciences International
http://www.imagingsciences.com/

DICOM and Image Processing Consultants
http://www.vaquita.co.uk
http://www.medicalconnections.co.uk

Dental Implant FAQ
http://www.adi.org.uk/public/implant/index.htm
http://www.bsoi.org/faq.html
http://sfii.com/faqs.htm

Health Protection Agency (Radiation Protection Division)
http://www.hpa.org.uk/radiation/

European guidelines on radiation protection in dental radiology
http://ec.europa.eu/energy/nuclear/radioprotection/publication/doc/136_en.pdf

European Guidelines on Quality Criteria for Computed Tomography
http://www.drs.dk/guidelines/ct/quality/

IMPACT - The UK's CT Evaluation Centre
http://www.impactscan.org

CT Users Group
http://www.ctug.org.uk

Association of Dental Implantology
http://www.adi.org.uk

British Society of Oral Implantology
http://www.bsoi.org

Specialist Dental Summaries
http://www.dentalsummaries.com

Radiation Protection Advisors
http://www.srp-uk.org/rpa2000/