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Jef van der Zel
Jef van der Zel
Academic Centre for Dentistry Amsterdam
Academic Centre for Dentistry Amsterdam

Jef van der Zel (1947) received his doctoral degree in metallurgy at the Technical University of Delft in 1972. From 1972-1975 he worked as senior research engineer for AngloAmerican in Zambia and returned for 2 years to the the TU Delft in the Department of Material Science. In 1977 he became co-founder and technical director of Elephant Dental BV responsible for the development and production of dental alloys, porcelain systems, implants and CAD-CAM-technology. In 1989 he obtained his PhD-degree on the thesis entitled “High-temperature behavior of high-palladium dental alloys”. In 1997 he received the King William I award for innovation and technology out of the hands of his royal highness Prince Claus and was knighted to the order of the Dutch Lion by Queen Beatrix. In 2003 he became the first professor in Computerized Dentistry at the Academic Centre for Dentistry Amsterdam (ACTA). He founded and chaired the ISO/TC106 Ad Hoc 1 Group for standardization of dental CAD/CAM. He was directly responsible for several developments, of wich the main ones were Carrara/Golden gate system, a rich gold alloy and a low melting veneering ceramic, of which more than 100 million units were produced wordwide, the first light section tabletop scanner, design software including virtual articulation, production methods for veneered restorations by CAD CAM based on alumina (Cicero) and zirconia (Primero) and a guided implantation method based on 3D optical and X-ray data (Armada). He published more than 100 articles on dental materials and CAD-CAM.

Research Interest

Prosthodontics, dental materials, computerized dentistry

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The organizers holds no responsibilities or liabilities of the personal articles of attendees at the venue against any kind of theft, lost, damage, due to any reason whatsoever. Delegates are entirely responsible for the safety of their own belongings.


No insurance, of any kind, is included along with the registration in any of the events of the organization.


Please note that transportation and parking is the responsibility of the registrant, Allied Academies will not be liable for any actions howsoever related to transportation and parking.


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Requesting an Invitation Letter

For security purposes, letter of invitation will be sent only to those individuals who had registered for the conference after payment of complete registration fee. Once registration is complete, please contact to request for a personalized letter of invitation, if not received until one month before the scheduled date of event.

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Cancellation Policy

All cancellations or modifications of registration must be made in writing to

If, due to any reason, Allied academies postpone an event on the scheduled date, the participant is eligible for a credit of 100% of the registration fee paid. This credit shall only be used for another event organized by Allied academies within period of one year from the date of rescheduling.

Postponement of event

If, due to any reason, Allied academies postpone an event and the participant is unable or unwilling to attend the conference on rescheduled dates, he/she is eligible for a credit of 100% of the registration fee paid. This credit shall only be used for another event organized by Allied academies within period of one year from the date of rescheduling.

Transfer of registration

All registrations, after payment of complete registration fee, are transferable to other persons from the same organization, if in case the person is unable to attend the event. Request for transfer of registration must be made by the registered person in writing to Details must include the full name of replaced new registrant, their title, contact phone number and email address. All other registration details will be assigned to the new person unless otherwise specified.

Registration can be transferred to one conference to another conference of Allied academies if the person is unable to attend one of conferences.

However, Registration cannot be transferred if intimated within 14 days of respective conference.

The transferred registrations will not be eligible for Refund.

This cancellation policy was last updated on April 04, 2015.

Visa Information

Keeping in view of increased security measures, we would like to request all the participants to apply for Visa as soon as possible.

Allied academies will not directly contact embassies and consulates on behalf of visa applicants. All delegates or invitees should apply for Business Visa only.

Important note for failed visa applications: Visa issues are not covered under the cancellation policy of Allied academies, including the inability to obtain a visa. 

Refund Policy:

If the registrant is unable to attend, and is not in a position to transfer his/her participation to another person or event, then the following refund policies apply:

Keeping in view of advance payments towards Venue, Printing, Shipping, Hotels and other overhead charges, following Refund Policy Orders are available:

  • Before 60 days of the conference: Eligible for Full Refund after deduction of $100 towards service Fee.
  • Within 60-30 days of Conference: Eligible for 50% of payment Refund
  • Within 30 days of Conference: Not eligible for Refund
  • E-Poster Payments will not be refunded.

Accommodation Cancellation Policy:

Accommodation Service Providers (Hotels) have their own cancellation policies which are applicable when cancellations are made less than 30 days prior to arrival. If in case the registrant wishes to cancel or amend the accommodation, he/ she is expected to inform the organizing authorities on a prior basis. Allied academies will advise the registrant to ensure complete awareness about the cancellation policy of your accommodation provider, prior to cancellation or modification of their booking.


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