About Tian Zhiqiang
About 山西医科大学口腔医学院,太原,030001
About Yao Chengjing
About 山西医科大学口腔医学院,太原,030001
About Yuan Yuwei
About 山西医科大学口腔医学院,太原,030001
About Zhang Junjun
About 山西医科大学公共衛生学院,太原,030001
About Ma Zhuo
About 山西省陽泉市口腔医院医務科
About Shanxi Yiyao Zazhi
About coal mine
About occupation
About worker
About gingivitis
About mouth disease
About tooth root
About periodontal disease
About tooth mobility
About oral hygiene
About quality of life
About 口腔保健
About 影響因子
About 山西省
About 慢性化
About Diseases of tooth and mouth(=oral cavity)
About Clinical dentistry(= odontology)in general
About 山西省
About 炭鉱
About 慢性
About 歯周疾患
About 現状
About 影響因子
About 研究