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caries free
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  无龋
     caries free group, dmft=0, n=46. Plaque samples were collected from subjects respectively.
     无龋(Caries Free,CF)组46名,dmft=0。
短句来源
     The proportion of score 0,1,2,3 was 33.3%,19.4%,34.6%,12.7% in caries free group,and 2.9%,11.8%,27.0%,58.3% in caries group respectively. The difference between two groups was highly statistical significant.
     无龋组四个水平所占的比例分别为 33 .3 %、1 9.4 %、34 .6 %和 1 2 .7% ,多龋组分别为 2 .9%、1 1 .8%、2 7.0 %和 58.3 % ,两组之间的差异有高度统计学意义。
短句来源
     Methods According to their caries status,41 children aged 3~5 years were separated into three groups:caries free group,dft=0,CSI=0,n=20;
     方法 将 4 1名 3~ 5岁儿童 ,按龋齿情况将其分为 3组 :无龋组dft=0 ,CSI=0 ,n =2 0 ;
短句来源
     Methods Children aged 6-7, caries free 12, high ca ries 6 and low caries 7 were studied.
     方法  6~ 7岁儿童 ,无龋 (dmfs=0 ) 12名 ,高龋 (dmfs≥ 10 ) 6名 ,低龋 (3≤dmfs<10 ) 7名。
短句来源
     METHODS: Forty-two 3~5 years old children were divided into caries free group(CF) and caries susceptible group(CS),with 22 in the former and 20 in the later.
     方法:选择 3~5岁儿童 42名,其中无龋者 22名、易感龋者 20名;
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  “caries free”译为未确定词的双语例句
     A study of parotid salivary proteins from caries free and caries active people by high performance li quid chromatography
     用高效液相法研究不同龋敏感人群的唾液蛋白成分
短句来源
     Methods: pH, HCO - 3 and activitifes of lysozyme(LZM), lactate dehydrogenase(LDH), alkaline phosphatase(AKP) in saliva wre measured in 110 3 ̄4 years old children, 49 in caries free(CF) group (dft=0), 61 in caries group (dft=1 ̄18) including 43 in caries susceptible (CS) group (dft≥5).
     方法:对110名3~4岁幼儿非刺激性全唾液的pH值、HCO-3、溶菌酶(LZM)、乳酸脱氢酶(LDH)和碱性磷酸酶(AKP)进行测定。 pH值用PHS-3C型酸度计测定;
短句来源
     Methods:2 500 children from ages 3 to 6 years in Chengdu were surveyed and chose 200 children with caries and 200 caries free children.
     方法:对四川省成都市五城区3~6岁儿童2500中进行患龋情况调查。
短句来源
  相似匹配句对
     On f-free Subsets
     关于f-free子集
短句来源
     Condemned to Be Free
     被判定的自由
短句来源
     in root caries.
     结论:牙龈萎缩、菌斑指数、年龄是根龋发生的危险因素。
短句来源
     Methods 24 caries-free, constant premolares were cut into enamel mass.
     方法 选择 2 4颗健康离体人恒前磨牙制成牙釉质标本。
短句来源
     A study on the salivary proteins of caries-free and caries-susceptible individuals.
     不同龋敏感人群唾液蛋白的研究
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  caries free
A significantly greater proportion of the CRF children was caries free, 40% compared with 8.5% of the controls.
      
We have shown previously that levels of salivary antibody to GtfC were significantly higher in caries-free than in caries-active young adults.
      
We selected 96 caries-free human maxillary molars and cleaned them by scaling and stored them in 0.1 percent thymol solution at room tem perature.
      
Volunteers who had no detectable caries or restorations were classified as caries free.
      
The resoonse Io antifungal only 31% of Group B were caries free, as oppiosed to 64% in Group A.
      
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The macroscopically caries-free human teeth extracted for perio-dontitis were used in this study. The uptake of fluoride was determined in sucessive enamel layers after iontophoresis of 2% NaF solution, in vivo, for 20 minutes. The teeth of 4 rabbits were treated in the same way once daily for ten days in vivo. The results show that fluoride uptake with iontophoretic treatment is more than the control. The formation of artificial caries-lesion of the iontophoretically treated teeth is slighter...

The macroscopically caries-free human teeth extracted for perio-dontitis were used in this study. The uptake of fluoride was determined in sucessive enamel layers after iontophoresis of 2% NaF solution, in vivo, for 20 minutes. The teeth of 4 rabbits were treated in the same way once daily for ten days in vivo. The results show that fluoride uptake with iontophoretic treatment is more than the control. The formation of artificial caries-lesion of the iontophoretically treated teeth is slighter than the control.It appears that iontophoresis enhances fluoride uptake both in concentration and depth in enamel.

本研究采用牙周病待拔的牙齿,以2%NaF水溶液做衬垫法离子导入20分钟,然后分别测釉质中氟含量;同法处理家兔切牙。结果表明导氟后,釉质掇氟量增加’人工龋病变形成减轻。 说明导氟法可使渗入釉质中的氟量增加,深度加深。

One hundred pooled plaques (average 4 days) were collected from 35 cariesactive (DMFT3~8) and 35 caries-free studentS. A half of the samples collected were "natural"plaques, the other half were taken after mouth-rinsing with 15% solution of various dietary sugars. The amount of extracellular polysaccharides (EPS) in thee natural plaques averaged9.10% of dry weight of theplaque, and the proportion of water and alkali-soluble EPS was 70:30. There was neither significant difference (P>0.5) in the amount...

One hundred pooled plaques (average 4 days) were collected from 35 cariesactive (DMFT3~8) and 35 caries-free studentS. A half of the samples collected were "natural"plaques, the other half were taken after mouth-rinsing with 15% solution of various dietary sugars. The amount of extracellular polysaccharides (EPS) in thee natural plaques averaged9.10% of dry weight of theplaque, and the proportion of water and alkali-soluble EPS was 70:30. There was neither significant difference (P>0.5) in the amount of total EPS between caries-active (9.16% )and caries-free (9.05%) subjects, nor in the distribution of water and alkali-soluble EPS. The amount of EPS, after sucrose and maltose mouthwash, increased by 46.20% and 49.47% over before, sugars, respectively.The difference between with or without sugar rinse was significant (P<0.001).And also the ratio of water and alkali-soluble EPS was influenced significantly (P<0.005) by above both sugars. But few changes were found following glucose, fruetose and xylitol rinses.

本实验从70名学生中收集了100个集合菌斑,其中有龋者(DMFT3~8)和无龋者各35人。样品的一半为“自然”菌斑,另一半是用各种食用糖漱口后收集的。分析结果表明,漱糖前菌斑EPS含量平均为菌斑干重的9.10%,水溶性和碱溶性EPS的分布比例接近70:30。患龋与无龋者菌斑EPS的含量(分别为9.16%和9.05%),和水、碱溶性EPS的分布均无显著性差异(P>0.5)。用蔗糖与麦芽糖漱口后EPS分别比漱糖前增加了46.20%和49.47%,其差值均有高度显著性(P<0.001)。同时还发现这二种糖能显著改变水、碱溶性多糖的分布比例。但含漱葡萄糖、果糖和木糖醇后,菌斑EPS的含量与分布均无明显变化。

The organic acids in unstimulatedsaliva and the extracellular fluids of dentalplaques from 12 middle school studentswere measured by means of ion-chromato-graphy. The acids in the plaques wereanalysed before and 5-10, 30-35, 60-65 minafter rinsing with 10% sucrose solution. Asignificant difference of the acids betweenthe extracellular fluids of resting plaquesand unstimulated saliva was found. In theextracellular fluids of plaques the totalamounts of high pKa acids (i. e. aceticand propanoic acids) were higher...

The organic acids in unstimulatedsaliva and the extracellular fluids of dentalplaques from 12 middle school studentswere measured by means of ion-chromato-graphy. The acids in the plaques wereanalysed before and 5-10, 30-35, 60-65 minafter rinsing with 10% sucrose solution. Asignificant difference of the acids betweenthe extracellular fluids of resting plaquesand unstimulated saliva was found. In theextracellular fluids of plaques the totalamounts of high pKa acids (i. e. aceticand propanoic acids) were higher than thoseof low pKa acids (i.e., lactic and formicacids) before and after the sucrose rinse.A relationship of the time-dependentchanges between the ratio of low pKa tohigh pKa acids and pH was observed in theextracellular fluids of plaques after the su-crose rinse.No significant difference in lacticacid concentration between the caries-activeand caries-free subjects 30-35 min afterthe sugar rinse was found. The amountof acetic acid was much higher in theextracellular fluids of the dental plaque atany time. It is suggested that there maybe some relationship between acetic acidand caries process.

作者利用离子色谱仪对12名青少年的龈上集合菌斑细胞外液有机酸在漱糖前后的种类和含量以及非刺激性唾液有机酸的种类和含量进行了测定。结果表明:在休息状态时,菌斑细胞外液中有机酸含量明显地高于非刺激性唾液中的含量;无论漱糖前后,菌斑细胞外液中高pKa酸(乙、丙酸)的浓度都高于低pKa酸(乳、甲酸)的浓度;漱糖后,菌斑细胞外液中高、低pKa酸的时间依赖性变化与其pH的变化存在相互关系。漱糖后30~35分钟时,龋活跃组与无龋组间,乳酸浓度变化的差异无显著性(P>0.05)。任何时候,菌斑细胞外液中的乙酸浓度都高。提示乙酸与龋损过程之间,可能存在一定关系,值得进一步研究。

 
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