Dental Technicians Act Article 18

A dental technician or an assistant dental technician may establish a dental laboratory to perform specifically dental laboratory work. To apply for the establishment of a dental laboratory, the dental technician must have performed dental laboratory work for at least two years; the assistant dental technician must have performed dental laboratory work for at least five years. The years of practice mentioned in the preceding paragraph are recognized only if the dental technician or assistant dental technician has a dental technician certificate or an assistant dental technician certificate and has registered his or her practice with the municipality or county (city) authority according to law. Notwithstanding the foregoing, the actual years of service rendered by a practicing dental technician or assistant dental technician before this Act is promulgated are also recognized.
中文原文 牙體技術師法第18條
牙體技術師、牙體技術生得設立牙體技術所,專門執行牙體技術業務。
申請設立牙體技術所,牙體技術師應執行牙體技術業務滿二年以上;牙體技術生應執行牙體技術業務滿五年以上,始得為之。
前項年資之採計,以領有牙體技術師、牙體技術生證書,並依本法向直轄市、縣(市)主管機關辦理執業登記者為限。
但於本法公布施行前已執行業務者,其實際服務年資得併予採計。

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