1. Symposium of Dental Science, 23 Mar. 2018,  Phnom Penh

2. Continue Professional Development, 18 May. 2018, Battambong Province

3. Continue Professional Development, 06 Jul. 2018, Siem Reap Province

4. Workshop on the development undergraduate DDS program, 24 Aug. 2018, Siem Reap Province

5. The 10th International Dental Conference and Exponent, 04-05 Oct. 2018, Phnom Penh