Dental Technicians Act Article 47

The term of office for directors and supervisors shall be three years, and no more than one half of incumbent directors or supervisors may be re-elected each time. The chairman of the board may be re-elected once only.
中文原文 牙體技術師法第47條
理事、監事任期均為三年,其連選連任者,不得超過二分之一;理事長之連任,以一次為限。

English translation for reference only; the Chinese text prevails. Not legal advice.