**Abstract**

To improve the efficiency of the dental care service system in Thailand. To synthesize content from Khon Kaen University (KKU) staffs and students' research and presentations from 1984 to 2020 about oral health hygiene and related diseases. Sixteen publications and presentations by KKU staffs and their students about oral health problems and management were retrieved, reviewed and analyzed. Poor oral health of people in the northeast of Thailand is found in every age group: children, adults and the aging, both male and female. There are still many oral health problems of Thai people in the northeast. KKU Field Works, Projects and Research were able to help reduce these oral health problems. An appropriate preventive oral health program needs to be developed and implemented in Northeastern Thailand.

**Keywords:** Oral health problems, Oral health management, Khon Kaen University, Dental care service
