1. Department of Oral and Maxillofacial Surgery, The Affiliated Stomatology Hospital of The First Affiliated Hospital of Xinjiang Medical University, Xinjiang Uyghur Autonomous Region, Urumqi, 830054, P.R. China
2. Xinjiang Uygur Autonomous Region Institute of Stomatology, Xinjiang Uyghur Autonomous Region, Urumqi, 830054, P.R. China
3. Department of Maxillofacial Surgery, Gansu Provincial Hospital, Lanzhou, Gansu province, 730000, P.R. China
4. Department of Prosthodontics, The Affiliated Stomatology Hospital of The First Affiliated Hospital of Xinjiang Medical University, Xinjiang Uyghur Autonomous Region, Urumqi, 830054, P.R. China