牙齿的

With a 1×0.5×0.5 ㎝3 size regenerated tooth formed in alveolus bone.

可见牙齿萌发於口腔中，齿槽骨内有1×0.5×0.5 ㎝3 大小的再生牙齿。

The cold light fair instrument principle is to lie a wave-length the high strength between the 480-520 nanometers is only blue, through more than 12000 roots, the total length more than 1 mile fiber-optic conductions, again pass 2 slices Be plated the optical mirror slice of film processing by 30 many times, separate place the whole harmful purple outside and only with infrared ray, irradiation go to daubery on the special fair on the tooth, in the shortest time inside make fair through tooth essence small tube and many in the last years the deposition oxidize revivification function in the tooth surface and the deep dye creation and make the tooth returned to before having not yet dye of pure.

冷光美白仪原理是将波长介于480-520nanometer之间的高强度蓝光，经由12000多根、总长度超过一英哩的光纤传导，再通过两片经30多次镀膜处理的光学镜片，隔处了一切有害的紫外光与红外线，照射到涂抹在牙齿上的特殊美白剂上，在最短的时间内使美白剂透过牙本质小管与多年来沉积在牙齿表面及深层的色素产生氧化还原作用，使牙齿回到未经染色前的洁白。

Your dentist may also advise you to visit a dental hygienist who can remove plaque build-up and calculus from your teeth and show you the best ways to keep your teeth clean and healthy.

你的牙医也可能建议你访问牙齿卫生员谁可以移除斑块的建立和微积分从您的牙齿和显示您的最佳办法，让您的牙齿清洁和健康。

A new ceramic containing fluorapatite and small particles of glass is being used to replace teeth. This ceramic material has the aesthetic look of a natural tooth and causes less wear to opposing teeth than other available materials. Research is even being done on a "ceramic" based gum which is thought to retard the growth of plaque.

一种新型的含有氟磷酸钙以及玻璃小颗粒的陶瓷正用于替代牙齿，用这种陶瓷制成的牙齿，有着和天然牙齿一样的外表，并且具有比由其他用于制作假牙的材料更好的耐磨性，研究人员也正在研制一种陶瓷基牙龈，以阻碍牙菌班的生长。

Fuse tartar therapy:The tooth gold biotechnology product that contains a natural plant through to lift to do has no chemistry additive, just like flavor, don't need into appetite absorption, brush teeth to gargle and then can see obvious effect just after needing through contain, use in brief, safety Gao, belong to have no pain go to stone, principle be pass to refine from the plant but of essence composition, reaction happen with tartar this kind of chemistry derivatives, thus attain thorough gum fuse tartar of effect, the tooth stone calculus sheds off to recover the sheen that tooth surface originally possessed, passing to brush teeth will have been already fused of gums bottom the tartar clean up, after return can plus the 1 F protection film in the tooth surface, make the tartar no longer easily re- adhered to.

溶解牙石疗法：通过口含天然植物提练的牙齿黄金生物科技产品，无任何化学添加剂，无异味，无需进入肠胃吸收，只需要通过口含后刷牙漱口就可以看到明显效果，使用简单，安全性高，属于无痛去石，原理就是通过从植物中提炼而出的精华成份，跟牙石这种化学衍生物发生反应，从而达到深入牙龈溶解牙石的功效，牙结石脱落恢复牙齿表面原有的光泽，通过刷牙可将已溶解的龈下牙石清理出来，之后还能在牙齿表面加上一层保护膜，让牙石不再容易重新附着。

After the teeth often hard to eat baby food such as biscuits, toast, apple slice, carrot chip, etc., in order to exercise the masticatory muscles, and promote the development of teeth and jaws. Molars after 1-year-old after grow, it should be regularly stubby eat food such as vegetables, if eaten too soft fine food, lack of masticatory muscle training, jaw can not be fully developed, but the teeth are still growing, it will lead to crowded teeth, with irregular or facial deformities.

出牙后要常给婴儿吃些较硬的食物，如饼干、烤面包片、苹果片、胡萝卜片等等，以锻炼咀嚼肌，促进牙齿与颌骨的发育。1岁以后臼齿长出后，应当经常吃些粗硬的食物，如蔬菜等，如果仍吃过细过软的食物，咀嚼肌得不到锻炼，颌骨不能充分发育，但牙齿却仍然生长，就会导致牙齿拥挤，排列不齐或颜面畸形。

The clinical characters of oligodontia concluded from this study are following:(1) There is significant difference that more teeth absent and more existent teeth anomalies in patients of oligodontia/S group than in patients of oligodontia/I group, and the peg-shaped upper lateral incisor is the most frequently affected teeth with shape anomaly.(2) Both of the two groups have no significant differences in number of teeth missing between maxilla and mandible as well as that between left and right side.(3) The distribution of teeth missing is bilateral symmetry in both groups, but the frequency of teeth lost are different: excluding the third molar, in oligodontia/I group, the lower second premolar is the most frequently congenitally missing tooth followed by the upper lateral incisor, while in oligodontia/S group, the most frequently missing teeth are mandibular canine and maxillary lateral incisor. Nevertheless, the first molars are the most stable teeth in both groups.(4) In oligodonita/I group, the mean mesiodistal dimensions of all type of existent teeth are significantly smaller than normal value. It is implied that oligodontia is not an isolated phenomenon, but is related to a complex of other dental changes.

对于口腔多个恒牙先天缺失的临床特点有以下初步结论：(1)综合征型先天缺牙患者较单纯型先天缺牙患者恒牙缺失数目更多，平均分别为23.9个和14.9个，且现存牙齿有更多的形态异常，分别为7／10例（70％）和6／22例（27.3％），其中最常见的是上颌侧切牙畸形；(2)两种类型的多个恒牙先天缺失患者的缺牙数目在上下颌及左右侧之间均无差别；(3)两种类型的多个恒牙先天缺失患者在缺失牙位上均呈对称分布，但在具体牙位上有所差异：不计第三磨牙，单纯型先天缺牙最常缺失的牙位是下颌第二双尖牙、其次为上颌侧切牙；而综合征型先天缺牙最常缺失的牙位是下颌尖牙和上颌侧切牙；无论何种情况，第一磨牙均为牙列中最稳定的牙齿；(4)在单纯型先天缺牙患者中，现存恒牙的牙冠宽度较国人正常值偏小，差异显著，提示牙齿形态与多个牙先天缺失有一定相关性。

Recent data suggested that Notch receptors and their membrane-bound ligands Delta and Serrate were involved in both patterning and cell fate determination during odontogenesis.

越来越多的证据表明：Notch途径参与了牙齿发育的各个过程，包括牙齿早期发育细胞的增殖、分化过程，决定细胞的定向分化方向，决定成牙本质细胞与成釉细胞的终末分化命运，并且参与牙齿炎症损伤后修复过程，与第三期牙本质的形成有关。

So you see tooth not the orderliness unexpectedly has so many banes, hope all tooths that the kids' parents can pay attention to a kid, periodical check, give kid an orderliness beauty, healthy of tooth, also gave kid self-confident in the meantime.

所以您看牙齿不整齐竟然有这么多的危害，希望所有孩子的家长都能够关注孩子的牙齿，定期检查，给孩子一副整齐美丽，健康的牙齿，同时也给了孩子自信。

The major concern during laser irradiation of teeth is the high potential of tissue overheating resulting high temperatures that can spread in toward the dentin,causing irreversible damage to cells presented in the pulp chamber and leading to cell death,so the related laser irradiation parameters should be controlled strictly.

激光辐照牙齿时所产生的温升容易引起牙髓细胞不可逆的损伤，导致牙髓细胞坏死，因此必须对相关的激光参数加以控制。建立了激光与牙齿相互作用的热传输模型，利用Crank-N icolson有限差分法数值模拟了不同Nd∶YAG激光参数照射下牙齿表面及内部的温度场的分布。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。