It is recommended that the chair-side dental assistant should be utilized in order to increase the production of dental health care by World Health Organization. In the Republic of Korea, there was no chair-side dental assistant by legally. So the authors investigated and discussed for the development of chair-side dental assistant in Korea. Obtained results were as follows 1. In order to increase the production of dental health care chair-side dental assistants should be developed. 2. Institution of chair-side dental assistant will be established legally. 3. Trained chair-side dental assistant will be positioned in dental clinics for dentist and health centers for dental public health.