Doctor Chia-Shuo Yeh is a dental specialist who specializes in endodontic treatment (30 cases a month), dental pulp treatment ( 20 cases a month), surgical endodontic treatment (5 cases a month).Endodontic treatment includes: 1) neuro abstraction; 2) removal of internal necrosis tissue and bacteria, enlargement of endodonts; 3) using specialized dental filling on dental pulp. Endodontic treatments can be divided into two types: non-surgical and surgical. In the recent years, with the constant improvement of dental pulp treatment, technology like ultrasound has been reused on dental pulp treatments, in acting as a supplementary for traditional suture, enhancing medical treatment.