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The Sage website, including online ordering services, may be unavailable due to system maintenance on 18th January between 2:00 am and 8:30 pm GMT. If you need assistance please contact our Customer Service team. Thank you for your patience and we apologise for the inconvenience.

Cun-Yu Wang, D.D.S., Ph.D. University of California School of Dentistry, Division of Oral Biology and Medicine, Los Angeles, CA, USA