牙齿

Nursing countermeasure:Do a good job of preoperative visits, and foresee the various possible factors that the tooth injures happened in possibility and inform an anaesthetist actively; the event of tooth injuries once happened, according to different tooth condition,we take immediate action related to treatment, nursing measures.

护理对策：做好术前访视，积极预见可能发生牙齿损伤的各类因素并告知麻醉师；一旦发生牙齿损伤，根据不同的牙齿损伤情况，立即采取相关治疗、护理措施。

Because it may be indicative of a more serious problem, such as a cavity ...

如果你的牙齿对……过敏你可能想用特殊牙膏……但你仍需要立即去看牙医，因为牙齿过敏可能预示更严重的问题，比如蛀牙空洞……从以上可以看出，选项 A， B， C都是牙齿过敏可能出现的一些个别的情况，都不是全面的，只有选项 D是对这段原文的转述和概括，故 D为正确答案。

It is to pass the tooth lips cheek side the surface evenly whets in addition to the 1 F(about the 1 mm) uses dentistry appropriation behind porcelain the material remoulds tooth shape and color and luster, because can with the accurate control tooth color index sign, therefore the hairdressing is effective and bear to whet sex similar to tooth

它是通过将牙齿唇颊侧表面均匀地磨除一层（约1mm）后用牙科专用瓷性材料重塑牙齿外形和色泽，因为可以精确控制牙齿颜色指标，因此美容效果很好，耐磨性与牙齿相近

Tooth-correct, because of the reason of the Jiao tooth machine, majority all will the engine gum atrophies of linger effect, correct process in or the Jiao tooth uses tooth gold behind, the tooth gold can make the atrophic gum directly absorbed enough nourishment when contains and make atrophic gum reborn thus and shut to match appear because of tooth-correct of difficult see a gum of blind side, avoid bring because of the tooth-correct of the gum atrophy linger effect.

牙齿矫正，由于矫牙器的原因，多数都会引擎牙龈萎缩的后遗症，矫正过程中或矫牙后使用牙齿黄金，牙齿黄金在口含的时候可以让萎缩的牙龈直接吸收到足够营养，从而令萎缩的牙龈再生，闭合因牙齿矫正而出现的难看牙龈缝隙，避免因牙齿矫正带来的牙龈萎缩后遗症。

The results were found as following:(1) The damage value increases more significantly with the increase in PVF before 30% PVF, beyond which the increasing trend becomes gradually gentle.(2)Keeping the interphase strength and PVF unchanged, the damage increase with increasing moisture concentration in a nearly linear relation.(3)The results generated from the FCC model with consideration of the interphase debonding are in good agreement with the experimental data, meanwhile, the FCC model is also capable of predicting the critical load for the damaged and the undamaged dental composite subject too the 3-point flexural test.4 A 3D-fmite element analysis has been successfully exploited to examine the mechanical behavior of the restoration-tooth structure under the polymerization shrinkage and water sorption. It was found:(1) The low stiffness of the composite has the effect to limit the displacement occurring in the remaining tooth tissue. For lower interphase, the cuspal flexures are litter higher. The high interphase modulus acts as a \'shielding effect\' for stress transfer.

得到如下结论：(1)相同的吸湿性，在30％PVF(颗粒体积分数：Particle volume fraction，PVF)前增加PVF，层间脱胶损伤值显著增加；此后损伤值的增加趋于平缓；(2)保持层间强度和PVF不变，层间脱胶损伤随吸湿率的增加而接近线性增加；(3)FCC(面心立方：Face-centred cubic，FCC)模型层间脱胶损伤的预测结果和实验数据基本吻合；同时此模型可以用于预测牙齿填充材料三点弯曲实验的临界载荷。4、建立理想牙齿修复结构，利用有限元方法研究了同时考虑聚合收缩和吸湿膨胀耦合作用下的填充修复材料和粘结界面层材料性能对牙齿修复结构的力学行为的影响，得到如下结论：(1)低弹性模量的牙齿填充修复材料能限制天然牙组织的位移，但天然牙组织的位移与粘结界面层的弹性模量无关。

Mainly be applicable to and arrange tidy, the lightly mid-degree tooth body of quality integrity changes countenance, whole the tooth light degree arrive mid-degree fluorine spot tooth, whole the tooth light degree four wreaths plain tooths, individual the tooth changes countenance, because the age increases the tooth color that the dentine change causes and delivers Huang and wants to become more white healthy buff tooth, heavy degree four wreaths plain tooth enamels sticks a noodles creation the bleach of front can make and whet in addition to of tooth quantity decrease, the effect is better.

主要适用於排列整齐、质地完整的轻中度牙体变色、全口牙齿轻度到中度氟斑牙、全口牙齿轻度四环素牙、个别牙齿变色、因年龄增长牙质改变引起的牙色发黄，想变得更白的健康浅黄色牙齿、重度四环素牙瓷贴面制作前的漂白可以使磨除的牙齿量减少，效果更佳。

Once was applicable to a small tooth, ex- tooth tooth cleft(the ≤ 2 mms), the whole the tooth light degree arrives to weigh a degree a fluorine spot tooth, whole light degree and mid-degree four wreaths plain toothses, whole tooth heavy degree four wreaths plain tooths match with bleach to also attain better effect, the tooth changes countenance separately, the tooth light degree arranges not and together and needs to change shape separately, and the external injury tooth breaks.

适用於过小牙齿，前牙牙齿间隙（≤2mm ），全口牙齿轻度到重度氟斑牙，全口轻度、中度四环素牙，全口牙齿重度四环素牙配合漂白也可以达到较好的效果，个别牙齿变色，个别牙齿轻度排列不齐，需要改变形状，外伤牙齿折断。

If the tooth leads small, ex- tooth tooth cleft(the ≤ 2 mms), the whole the tooth light degree arrives a mid-degree fluorine spot tooth, the whole the tooth light degree is four wreaths plain tooths, the tooth changes countenance separately, the tooth light degree arranges not and together separately, and the external injury tooth jot breaks.

如牙齿过小，前牙牙齿间隙（≤2mm ），全口牙齿轻度到中度氟斑牙，全口牙齿轻度四环素牙，个别牙齿变色，个别牙齿轻度排列不齐，外伤牙齿少量折断。

So the death age of the youngster and infant can be inferred through the length of the tooth, that is, through repeatedly measuring 100 teeth, use math physical statistics methodology to infer dental length and age regression equation, then put the length of the tooth taken from the scene and the type into the equation, and the death age can be inferred.

因此 ，可以利用牙齿长度来推断青、幼年人的死亡年龄。即通过重复测量 10 0颗牙齿，利用数理统计的方法，推导出牙齿长度与年龄的回归方程。然后，将现场提取的孤立牙齿的长度值与种类代入该方程，便可推算出死亡年龄。

Teeth 牙齿 The Perro de Presa Canario has a complete set of evenly spaced teeth, set in a wide jaw.

在佩罗日普雷萨Canario拥有一套完整的间隔均匀的牙齿，建立广泛的下颚。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失