名詞 dentistry:

1. the branch of medicine dealing with the anatomy and development and diseases of the teeth
   同義詞：dental medicine, odontology

1. A device placed in the mouth to keep it open, as in dentistry.
   張口器如牙科中放在嘴里使嘴張開(kāi)的裝置
2. The branch of dentistry that deals with the diagnosis, prevention, and treatment of diseases and problems specific to the aged.
   老年牙醫(yī)學(xué)牙科學(xué)分支，專(zhuān)門(mén)研究老年人牙病和問(wèn)題的診斷、預(yù)防和治療
3. The branch of dentistry that deals with diseases of the tooth root, dental pulp, and surrounding tissue.
   牙髓病學(xué)研究牙根、牙髓及其周?chē)M織疾病的牙醫(yī)學(xué)的一個(gè)分支

den.tist.ry

n.Abbr. dent.（名詞）縮寫(xiě) dent.
The science concerned with the diagnosis, prevention, and treatment of diseases of the teeth, gums, and related structures of the mouth and including the repair or replacement of defective teeth.
牙醫(yī)學(xué)：與診斷、預(yù)防和治療牙齒、牙齦及相關(guān)的口腔結(jié)構(gòu)，包括修補(bǔ)或替換壞牙有關(guān)的科學(xué)