✔ 最佳答案
牙醫 study 5 year with qualification BDS
口腔科 one of the speciality within 牙醫, need to study at least 5 more years after BDS, they do more operation within the mouth
香港牙醫管理委員會專科醫生名冊
「口腔頜面外科專科」
Specialist Register of the Dental Council of Hong Kong
“Specialist in Oral & Maxillofacial Surgery”