Li Dawei Li Dawei (American dental implant restorer. 1985 graduated from the university of Maryland, Baltimore, Maryland, USA with a doctorate in dentistry, and later became a member of the international dental implant society. He has more than 20 years of clinical experience in dentistry and has many years of working experience in dental clinics in California, Maryland and Virginia. He is a clinical lecturer at the School of Stomatology, University of Southern California, and has published many papers on the treatment of periodontal disease. Li Dawei is an American dental implant restorer.
Zheng Chunkui Zheng Chunkui is an expert in cosmetic restoration of dental implants in Korea. Graduated from the School of Dentistry, Seoul National University, Korea, and studied at the School of Stomatology, Royal Swedish College and the School of Stomatology, Washington University from 65438 to 0995. He has successively obtained a master's degree in oral and maxillofacial surgery, a master's degree in periodontics and a doctorate in prosthodontics.
Zheng Chunkui is an expert in cosmetic restoration of dental implants in Korea.
Park Dong-shin graduated from the Department of Stomatology, North Korea University, and received his Ph.D. from the School of Stomatology, Kyung Hee University, Korea. He is a full member of Korean Dental Aesthetics Association, Korean Dental Implant Association, Korean Prosthetics Association and MINEC-UCLA. He is currently the president of GDI International Stomatology Research Association, the president of Dongxin Stomatological Hospital, the president of Gangnam Global Village Stomatological Hospital in South Korea, and the consultant of Micron Dental Implant Company.
Question 1: When parents are old, children also have the obligation to educate their parents. (3 points)
Question 1: No (1) "not necessarily" means "not necessar