查询词典 transparent dentin

The three groups were loaded and analyzed under the same loading according to the mean value of the bite force of incisors. RESULTS:(1)The maximum stress of dentin in group A was twice higher than that in group B. The maximum primary stress, minimum primary stress and maximum shear stress of group A were respectively 236.35, 228.83 and 218.05 percent of those in group B. The difference of maximum stress values of group B and group C was neglectable.(2) The maximum stress distribution of dentin in group A and group B was quite different (the stress was concentrated in labial and lingual side of the cervical dentin in group A, otherwise in group B it was concentrated in the area around the alveolar and the labial and lingual side of the dentin which was opposite to the tip of the cast metal post and core). The maximum stress distribution of dentin in group A and group B was almost the same.

结果：(1)从牙本质的应力大小来看，A组中牙本质最大应力值比B组中牙本质最大应力值增大了1倍以上（最大主应力、最小主应力和最大剪切应力A组分别是B组的236.35%、228.83%和218.05%），而B组与C组的牙本质最大应力值相差极小；(2)从牙本质的应力分布位置来看，A组与B组的牙本质最大应力分布位置相差甚远（A组主要集中在牙颈部唇舌侧肩台部的牙本质上，B组主要集中于牙槽嵴顶附近及铸造桩核尾端相对应的唇舌侧的牙本质上），而B组与C组的牙本质最大应力分布几乎在同一位置。

Influence of dry or wet bonding on microleakage of Ti alloy inlay;2. Influence of dry or wet dentin bonding surface on wet bonding strength: a microtensile study;3. To study the microstructural influence of dry or wet dentin bondin g surface on the dentin bonding interface, five wet bonding systems were used to bond Chrisma B20 resin with dry or moist dentin surface with scanning electron m icroscope.

结果湿粘结时5种粘结系统在粘结界面获得良好的渗透图象；干燥粘结时，两种以丙酮为溶剂的粘结系统在干燥粘结时形成的粘结界面，与湿粘结时有明显的区别，混合层较薄，并有明显的不完全渗透的结构和混杂层的形成；以酒精和水为溶剂的粘结系统在两种不同粘结状态时粘结界面的超微结构没有明显的区别。

Dentin tooth dentin constitute the main material, is located in the inner enamel and cementum, it is better hard enamel.

牙本质』牙本质是构成牙齿主体的物质，位于牙釉质和牙骨质的内层，不如牙釉质坚硬。

The clinical practice of post and crown technique in big dentin defect is mature and successful, save many big dentin defects which are extracted before, it is valuable in clinic.

桩核加烤瓷冠技术在牙体大面积缺损修复中的临床应用是成熟成功的，挽救了许多以前要拔除的牙体大面积缺损的患牙，临床应用很有价值。

the clinical practice of post and crown technique in big dentin defect is mature and successful, has saved many big dentin defects which are extracted before, it is valuable in clinic.

桩核加烤瓷冠技术在牙体大面积缺损修复中的临床应用是成熟成功的，挽救了许多以前要拔除的牙体大面积缺损的患牙，临床应用很有价值。

clinical practice of post and crown technique in big dentin defect is mature and successful, save many big dentin defects are extracted before, it is valuable in clinic.

桩核加烤瓷冠技术在牙体大面积缺损修复中的临床应用是成熟成功的，挽救了许多以前要拔除的牙体大面积缺损的患牙，临床应用很有价值。

Objective In order to investigated the effect of dentin inorganic material during dentin bond.

目的 探讨牙本质无机物在牙本质粘接过程中的作用。

The odontoblast is thought to be responsible for dentin formation and mineralization during tooth development and dentin reparation.

成牙本质细胞在牙齿发育和损伤修复过程中负责牙本质的形成和矿化。

Normal dentin is twice as stiff as pinewood, but damaged dentin is more like rubber, which makes it pretty hard to chew with.

正常的牙本质比松木还坚硬一倍，但是遭到损坏的牙本质却软如橡皮。

The results showed that the thickness of dentin substrate can have some influence on peak value of Maximum principle stress (Variation 4%). The influence sensitivity decreased with the increase of dentin thickness.

结果发现模型中不同牙本质厚度会对粘结界面的最大主应力峰值产生一定水平的影响(变化范围4%)，其随厚度增大敏感度逐渐下降。

The system can be widely used in belt weighing and batching process control,etc.

介绍了基于智能模糊控制的嵌入式配料系统的设计方法，对模糊PID控制过程和系统调零作了重点的讨论，同时给出了PID控制的程序流程图和系统定长调零子程序。

"I dunno," she answered,"but if you show me aroun', I'll recognize it from the lighthouse just outside the porthole."

"我不知道，"她回答说，"如果你能带我转转，我能认出来的，因为灯塔就在舷窗外。"