口腔专业英语

口腔专业英语

N I T -1 d e n t a l

p l a q u e

牙菌

S . s a n g u i s

血链球菌S . m i t i s

轻链球菌S .

m u t a n s

变形链球菌aer obi c

好氧的，氧气的；依靠氧气的ana ero bic 没有空气而能生活

厌

氧

的

1.In contrast to mucosal surface,the surface of teeth are not constantly renewed by shedding of colonized epithelial cells.

较之粘膜，牙面不能稳定地通过上皮脱落而更新。2. Selective manner in which bacteria attach to the

tooth surface is thought to reflect the fact that bacteria on their surface contain a recognition system which enables components on the bacteria surface (adhesions) to blind to complementary molecules (receptors) in the pellicle.

细菌附着与牙面的选择性方式反映了这一事实，即细菌表面具有识别系统，该系统能使细菌表面的附着器与获得性膜中的互补手提分子结合。

UN

IT-

2

ecol

生态学；个体生态学eco syst em 生态系统（学）mut anis m 突

的S . s a n g u i s

血链球菌S . m u t a

s

变

形

链

球

菌

1.Colonization is a complex process, as it involves not only interaction between bacteria and their environment but aslo bacterial interactions.

定植是一个复杂的过程，它不仅包括细菌和环境间的相互作用，也包括细菌之间的相互作用。

2.Tooth eruption has a major impact on the composition of oral flora.This is to be expected, as teeth provide new types of surfaces and new microenvironments.

牙齿的萌出对口腔菌群组成有重要影响。这是因为牙齿提供了一些新型的表面和新的微环境。

UN

IT-

sali va 唾液par otid 耳旁的；腮腺的ling ual 舌的，语言的，舌侧

buc cal 颊的，颊侧的labi al 唇的，唇侧的pal atin e

腭的ede ntul

无牙sulc ulu s

小沟mas tica tion 咀嚼che w 嚼，咀嚼tem por om and

ar join t (T MJ) 颞下颌关节stre pto coc ci 链球菌fun gus (复fun

真

菌，

霉

菌

1.The salivary amylase activity of differenr individuals varies but a weak action is compensated for by the strong action of pancreatic amylase in the duodenum.

不同个体间唾液淀粉酶的活性不同，但是较弱的活性可由十二指肠中强活性的胰淀粉酶补偿。

UN

IT-

4

ena

mel

釉

质

den

tina

l

ules 牙骨质小管am eloc eme ntal jun ctio n 釉牙骨质界den tine 牙

质cem ent um 牙骨质odo nto blas t

成牙本质细胞alve olar bon e

槽

骨

alve

olar

cres

t

牙

槽

嵴

jun

ctio

nal

epit

heli

um

结

合

上

皮

1.The tooth bud undergoes peripheral proliferartion

into the mesenchyme, leaving a central

mensenchyme-filled depression, to form the tooth cap which consistants of the same components as the tooth bud.

牙蕾的周边区上皮向外胚间充质中生长，基底部凹陷，状如帽子，凹陷内充满外胚间充质细胞，帽状期上皮与蕾状期相同。

2.Dentine consists of mineralized tissue (chiefly

hydroxyapatite) in which microscopic tubules are found extending from the pulp to very close to, or even through, the amelodentinal junction.

牙本质由矿化组织（以羟基磷灰石为主）构成，镜下见有小管自牙髓贯穿全层到达或穿过釉牙本质界。

UN

IT-

5

den

tine

per

me

abil

ity