Dr. Rene Franzen is hosting a scheduled Zoom meeting. Topic: Norbert Gutknecht – Laser cavity preparation – the 5 big advantages compared to conventional preparationsTime: Jun 4, 2020 06:00 PM Berlin Online Seminar: Prof. Gutknecht – Laser cavity preparation – ...This entry was posted in News Online Seminar waled and tagged Online Seminar on 3. June 2020 by Rene Franzen