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dentin
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  牙本质
    Cloning and Expression and Functional Study of Human Dentin Sialoprotein
    人牙本质涎蛋白的基因克隆、表达和功能研究
短句来源
    The Effects of Excessive Fluoride on Type Ⅰ Collagen, MMP-8 in Dentin and Calcium Transport in Dental Pulp Cells
    过量氟对牙本质Ⅰ型胶原、基质金属蛋白酶-8和牙髓细胞钙离子转运的影响
短句来源
    Regulatory Role of Smad3 Signaling on Dentin Sialophosphoprotein Gene Expression
    Smad3对牙本质涎磷蛋白基因表达调控的研究
短句来源
    The Study of the Transcriptional Function of Core Binding Factor α1 on Mouse Dentin Sialophosphoprotein
    核心结合因子α1对鼠牙本质涎磷蛋白基因转录调控的研究
短句来源
    A Study on the Transcriptional Regulation Mechanisms of Human Dentin Matrix Protein 1 Gene
    人牙本质基质蛋白1基因转录调控机制的研究
短句来源
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  牙质
    High Bond Strength and High Quality Hybridized Dentin Layer
    高强度和高特性能杂化牙质层的研究
短句来源
    The purpose of this study was to examine the effect of 2-methacryloxyethyl phenyl phosphoric acid (phenyl-P)/2-hydroxylethyl methacrylate(HEMA) acetone-based primer dentin surfaces that were preconditioned with ethylenediaminetetraacetate (EDTA5-0) to remove the smear layer.
    研究了2-甲基丙烯酰氧乙基苯基磷酸phenyl-P/2-羟乙基甲基丙烯酸酯(HEMA)丙酮底剂和用1,2-乙二胺四乙酸盐(EDTA5-10)调湿剂在湿粘接时对调湿牙质表面的综合影响。
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  “dentin”译为未确定词的双语例句
    The expression of Pax9 and Dentin matrixprotein 1 (DMPI) gene of transfeeted BM-MSCs were detected by RT-PCR;
    RT-PCR 检测转染后细胞的Pax9和DMP1基因表达情况;
    Single Bond and Prime &Bond NT adhesives were bonded to the pretreated dentin surface respectively, then Z100 placement.
    将表面处理后的牙分别用Single-Bond粘结系统组与Prime & Bond NT粘结系统进行粘结,Z100树脂充填。
    EXPERIMENTAL STUDY ON REPAIR OF BONE DEFECTWITH DEMINERALIZED DENTIN MATRIX
    脱矿人牙基质骨诱导材料修复骨缺损的实验研究
短句来源
    Effect of Pulsed Nd∶YAG Laser on the Apical Root Dentin when Associated with Hydroxyapatite
    脉冲Nd∶YAG激光联合羟基磷灰石对根尖切除的作用(英文)
短句来源
    The clinical observation about the effect of TM light-curing desensitizer on dentin hypersensitivity and the research on its mechanism of desensitization
    TM光固化脱敏涂料的临床疗效和作用机理研究
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  dentin
Incisor Dentin of Hibernating Rodents as an Indicator of Some Climatic Factors
      
Architectonics and optical properties of dentin and dental enamel
      
The optical polarization method is used to study the distribution of tubules in human dentin.
      
They exhibit specific optical effects resembling conoscopic patterns, revealing the highly hierarchical structure of the crown dentin.
      
Comparative ablation rate from a Er: YAG laser on enamel and dentin of primary and permanent teeth
      
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The extracted teeth which were treated with the surface-active como-nomer NPG-CGE after been etched in phosphoric acid were adheredtogether with "EB" type Ⅰ composite material. The adhesive proper-ties of the specimens were tested by tensile bond strength. The test results showed, without tooth surface treatment the tensilebond strength was poor .However, the adhesive properties were significantlyincreased in enamel specimens when they were etched first in phosphoricacid. But, when dentin was similarly...

The extracted teeth which were treated with the surface-active como-nomer NPG-CGE after been etched in phosphoric acid were adheredtogether with "EB" type Ⅰ composite material. The adhesive proper-ties of the specimens were tested by tensile bond strength. The test results showed, without tooth surface treatment the tensilebond strength was poor .However, the adhesive properties were significantlyincreased in enamel specimens when they were etched first in phosphoricacid. But, when dentin was similarly treated the result was poor. WhenNPG-CGE was used after etching, the best tensile bond strength wasobtained in both enamel and dentin. After soaking the specimens in water for 100 days the tensile bondstrength of the NPG-GGE treated teeth was apparently unaffected. But,NPG-CGE stored in ethaaol for 2 months began to lose its strength.

用抗张强度实验测定了经偶联剂NPG-CGE与磷酸处理的离体人牙对复合充填树脂的粘结强度。结果表明,牙面经磷酸处理再加用偶联剂的粘结性优于单用磷酸处理,以牙本质的粘结强度增高最明显。进行了粘结耐水实验和偶联剂贮存有效期实验。并对结果作初步讨论。

The biological compatibility of dental materials have not been extensively tested in our country. There are no unified national standards for such materials. We have done some experiments to assess the biological compatibilities of the polycarboxylic compound ceramic which we developed and intended to use in the clinic.In reference to the American National Standards/ADA Documents No. 41, we have completed: 1) short term systemic toxicity tests: oral route; 2) acute systemic toxicity tests: intraperitoneal injection;...

The biological compatibility of dental materials have not been extensively tested in our country. There are no unified national standards for such materials. We have done some experiments to assess the biological compatibilities of the polycarboxylic compound ceramic which we developed and intended to use in the clinic.In reference to the American National Standards/ADA Documents No. 41, we have completed: 1) short term systemic toxicity tests: oral route; 2) acute systemic toxicity tests: intraperitoneal injection; 3)subacute systemic toxicity tests: oral route; 4) haemolysis tests (in vitro tests directly onmaterial; 5) in vitro cytotoxicity tests; 6) the Ames m.utagenicity tests; 7) short term intramuscular implant tests;8) pyrogen tests(both limulus tests and rabbit tests; 9) intracutaneous injection tests; 10) pulp and dentin response tests.The results of the above tests revealed that the polycarboxylic compound ceramic, had no toxicity, no haemolytic activities, no cytotoxicitY in vitro, no mutagenic activities, no irritation to muscle or skin.Pulp and dentin tests were made to assess the-response of the dental pulp and dentin to the compound material. After 7, 45 and 90 days, the tested teeth were examined under microscope. The results were compared with that of silicate cement and that of zinc oxide and eugenol paste. We found that the response of the pulp and dentin to the compound ceramic were similar to that of zinc oxide and eugenol paste. In some respects, the response were even milder than that of Zinc oxide eugenol paste. The compound ceramic did no harm to pulp and dentin. We concluded that the polycarboxylic compound ceramic possessed very good biological compatibilities and can be used in clinic safely.

本文作者参照美国国家标准(ADA41号文件),对自行研制的羧聚复合陶瓷材料的组织相容性进行了实验研究。实验包括1.急性毒性实验;2.亚急性毒性实验;3.溶血试验;4.皮内试验;5.短期肌肉内植入试验;6.热原试验;7.抑茵试验;8.细胞毒性试验;9.Ames试验;10.摸拟动物牙髓刺激试验。实验结果表明,该材料具有良好的生物相容性,安全无毒,无溶血性、无致突变性,对肌肉组织刺激轻微,对皮肤无刺激,不含热原物质。对牙髓和牙本质的刺激与氧化锌丁香油糊剂所引起的相似,可用于临床。

Fluoride injections were given in the rat with 0.25% sodium fluoride solution at the doses of 1-6 ml/kg body wt. The chronic fluorosis enamel appeared after 16-30 days. Acute fluorosis showed at the doses of 6 ml/kg body wt. In the chronic fluorosis, there were the lines in yellow alternating with white colour on the surface of incisors. Under the optical microscope, the dark zone in the enamel or dentin on the longitudinal sections were found. In the soft X-ray examination, the zone were radiolucent,...

Fluoride injections were given in the rat with 0.25% sodium fluoride solution at the doses of 1-6 ml/kg body wt. The chronic fluorosis enamel appeared after 16-30 days. Acute fluorosis showed at the doses of 6 ml/kg body wt. In the chronic fluorosis, there were the lines in yellow alternating with white colour on the surface of incisors. Under the optical microscope, the dark zone in the enamel or dentin on the longitudinal sections were found. In the soft X-ray examination, the zone were radiolucent, and under the polarizing microscope, they were positive birefringence. Meantime, such changes decribed above were also found in dentin. Besides the incisor, there was abnormal calcification in alveoli and epiphysis of femur. The seriousness of chronic fluorosis depends on the doses, kinds, of fluorides, and the age of rats.

大鼠注射0.25%氟化钠溶液1~6毫升/千克体重持续到16~30天时,产生典型的慢性氟中毒。大于此剂量时,皆有急性氟中毒发生。慢性氟中毒时,大鼠切牙出现黄白相间的斑釉条纹;纵断磨片在光学显微镜下有釉质暗带;软X线检查,暗带有透射现象;偏光显微镜检查此暗带呈正光性双折射。牙本质也有相应改变。除牙齿外,牙槽骨和股骨也有钙化紊乱现象。慢性氟中毒的程度与氟化物的种类、剂量以及动物的年龄、进入体内的钙离子等因素有关。

 
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