牙齿磨损

牙齿磨损重表明Ganlea拥有扩大犬齿，它用来撬开硬盘外部的艰苦热带水果提取内部坚果和种子。

Heavy dental abrasion indicates Ganlea possessed enlarged canine teeth that it used to pry open the hard exteriors of tough tropical fruits to extract interior nuts and seeds .

牙齿磨损非接触式三维图象检测系统的研制和检测

A development of 3 - D image survey system for tooth wear measurement

牙齿磨损程度随咀嚼槟榔量的增加而加重（P0.05）。

Tooth abrasion increased with the amount of chewing betel nut heavier ( P0.05 ) .

牙齿磨损程度与年龄问存在线性关系（P0.05）。

There is a linear relationship between tooth abrasion and age . ( P 0.05 ) .

以PDC钻头的钴速和牙齿磨损模式为基础，建立了带有等式和不等式约束的最优化问题模型；

Aoptimization model with equal and unequal restriction conditions is established on the basis of PDC bit 's ROP and wear model .

最终，牙齿磨损是一个有指导意义的例子。

Finally , the wearing out of teeth provides an instructive example .

磨牙、尖牙切牙前磨牙。结论：①牙齿磨损程度随年龄的增长而加重。

Molars , canines incisor premolars . Conclusion : ① Tooth abrasion with age and heavier .

许多草食动物，例如马，由于长时间的吃草导致牙齿磨损。

Many herbivores , such as horses , have teeth that wear out through a lifetime of grazing .

淡斜绿泥石属层状硅酸盐矿物，片状形态，硬度比方解石低，做牙膏的磨擦剂显然优于方解石。它不仅对牙齿磨损小，而且具有洁齿、护齿性能。

So it is obviously better than calcite for toothpaste polish because of its lower wear and tear .

不同牙位牙齿磨损程度不同，下颌第一磨牙与下颌中切牙的磨损程度最重。

Different teeth of different tooth abrasion , mandibular first molar and mandibular incisor the abrasion are the most .

老年人牙齿磨损情况调查及治疗分析新石器时期人类牙齿磨耗与饮食习惯

INVESTIGATION ON TEETH ATTRITION IN THE ELDERLY AND ITS TREATMENT An analysis of the teeth attrition in Neolithic population

牙膏磨擦剂的清洁作用和牙齿磨损&牙膏磨擦剂对牙齿磨损和清洁效果的影响及研究进展Ⅱ

Abrasion and cleaning efficacy of toothpaste abrasives & Effect of toothpaste abrasives on tooth wearing and tooth cleaning ⅱ

通过对30颗下颌第一磨牙的形态学测量进一步探讨了牙齿磨损对牙齿形态的影响特点；

Furthermore , by measuring 30 mandibular first molars , the effect of tooth wear on the shape of the tooth was analyzed ;

结果表明，调查组老年人的牙齿磨损率达到100%，轻度磨损率为54.6%，重度磨损率为45.4%。

The results indicated that the occurrence rate of attrition was 100 % , 54.6 % of them was slight and 45.4 % of them was severe .

研究牙体硬组织或修复材料的磨耗，可以为研制新的耐磨修复材料及预防或延缓牙齿磨损提供理论基础和指导方向。

Research on wearing of dental hard tissue or repair materials , can provide a theoretical basis for the development of wear-resistant tooth materials and preventing or delaying tooth wear .

通过156口调整井钻井试验，对比分析了刮刀钻头和牙轮钻头的钻进特性、牙齿磨损特性、井底流场特性及钻井效果。

Through drilling experiment in 156 adjustment wells , the drilling behaviors , cutter wear , downhole jet flow field and drilling effect of drag bits and roller ones were comparatively analyzed .

当一组牙齿磨损后，可掉过头来使用另一组牙齿，从而提高了牙板的使用寿命。

After one set of teeth is abraded , the tooth-plate can be reversed so that the other set of teeth can be used , and therefore , the service life of the tooth-plate is increased .

不同年龄段人群的牙齿磨损程度比较显示年龄与磨损程度无明显关系，说明尽管对于个体而言，磨损量随年龄增长而逐渐累积，但群体之中不存在横向可比性。

No significant relationship was found between the degree of tooth wear and the age . It is suggested that though the volume of tooth wear increased with age , the speed of wear was different in individuals .

目的：通过调查湖南省15岁及15岁以上人群中牙齿磨损情况及咀嚼槟榔情况，以研究年龄、性别、咀嚼槟榔、牙位与牙齿磨损的关系，为牙齿磨损的病因及预防提供科学依据。

Objective : Through the investigation of the situation of the tooth abrasion and betel nut chewing of the over 15 years-old and 15 years-old people , so as to study the relationship between the tooth abrasion and the situation of the age , sex , betel nuts chewing .

后来的研究显示：这些牙齿是磨损了的或非典型的猩猩牙齿，Hemanthropu人概念很快被抛弃了。

Later research revealed that these were worn or atypical orangutan teeth and Hemanthropus was quickly abandoned .

给舌头打洞装舌钉常常会导致口腔感染，牙齿的磨损与破损，或是口腔外伤。

Tongue piercings have also been associated with , chipped or broken teeth , and gum trauma .

结果不同牙位牙齿的磨损度从0.85±0.65到2.59±1.02不等。

RESULTS : The score of mean attrition of tooth was from 0.85 ± 0.65 to 2.59 ± 1.02 in different position .

本产品从芦荟中提取植物精华素，馥郁芳香，口感独特，并选用高档硅磨料配方，减少牙齿表面磨损。

This product is extracted from the aloe plant essence , fragrance aroma , taste unique , and the election Abrasive formula with high-grade silicon , reduction of tooth surface wear .

非接触式三维图像检测系统测量牙齿咬合面磨损的初步研究

Preliminary study of tooth measured by a noncontact 3D image survey system

牙齿病理性磨损充填治疗的临床效果研究

Clinical effect of the restoration for pathological tooth wear

当我们刷牙齿时珐琅质磨损可以更容易和随著时间的推移变得更薄。

When we then brush our teeth , the enamel can be worn away more easily and become thinner over time .

当然，人类可以通过牙齿保健来防止磨损，而一些食草动物的门牙却是终身生长的。

In humans , of course , the wearing out of teeth is circumvented by dental care , and some herbivores have incisor teeth that grow continuously throughout life .

考古学家在对该木乃伊的牙齿，特别是牙齿磨损程度分析后得出结论：这只狮子年纪很大，而且肯定是被圈养的。

Analysis of the teeth , particularly the wear on them , show that the lion lived to be very old and must have been kept in captivity .