Dr. drg. Endang Wahyuningtyas, MS., Sp.Pros(K), commonly known as drg. Tyas, is a faculty member of the Department of Prosthodontics. She graduated with a Bachelor's degree and a dentist profession degree in 1982 from the Faculty of Dentistry, Universitas Gadjah Mada (FKG UGM). She earned her Master's degree in 1992, completed her prosthodontics specialist training in 1998, and received the title consultant specialist in 2006. Dr. Tyas obtained her doctoral degree from Universitas Gadjah Mada in 2016. 

Dr. Tyas has been a faculty member at FKG UGM for over 30 years. She teaches courses on removable partial dentures and maxillofacial prostheses, among other topics. She is involved in teaching at the undergraduate and professional levels in the Dentistry Program, the S1 Dental Hygiene Program, and the Specialist Prosthodontics Program. She has numerous publications in national and international journals. She is an expert in Prosthodontics with a subspecialty in Maxillofacial Prostheses. 

In addition to her teaching duties, Dr. Tyas is active in various organizations, including the Indonesian Prosthodontic Association (IPROSI), the International Association for Dental Research (IADR), and the Indonesian Dental Association (PDGI), where she serves as a board member of the Yogyakarta branch. She has held several administrative positions, such as Head of the Department of Prosthodontics (2016-2021), Head of Finance for the Specialist Prosthodontics Program (2012-2016), and Secretary of the Prosthodontics Program and Department (2008-2012). Additionally, she is an assessor for the Indonesian Health Professional Education Quality Assurance Agency (LamptKes) and a certification assessor for lecturers at Universitas Gadjah Mada.