1. Shanxi Medical University School and Hospital of Stomatology, Taiyuan 030001, Shanxi, China
2. Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials, Taiyuan 030001, Shanxi, China
3. Taiyuan University of Science and Technology, Taiyuan 030024, Shanxi, China
4. Research Institute of Photonics, Dalian Polytechnic University, Dalian 116034, Liaoning, China