LETTER OF INVITATION Dear Dr. de Basso, It is our pleasure to officially invite you to participate in the 4th International Workshop on Advanced Ceramics and Technologies for Dentistry (ACT4D 2020) to be held online on the 9-12th of October, 2020. This letter confirms your registration as invited speaker. No registration fee would be charged. Since you prefer to participate offline in Stockholm, please note that travel, living, accommodation expenses and personal medical insurance are not included in the workshop registration fee and these will not be provided by the workshop organizers. Due to uncertainty of current pandemic, we suggest you to follow the update of the situation and corresponding travel suggestions by FHM. We’ll inform you via email to your registered email address if any changes about the offline gathering happen. We also remind you to submit the abstract of your oral presentation, if any, to [email protected] in time. Once decided, all related information above would be announced on the official website of ACT4D 2020: www.stockholmmaterial.com. We look forward to meeting you at ACT4D 2020!