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intertubular dentin
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  “intertubular dentin”译为未确定词的双语例句
     Conclusion PBNT and P One provided good resin infiltration, producing a three dimensional interlocking micronetwork of resin tags in the dentin tubules with multiple lateral branches that penetrate the intertubular dentin, which positively influenced the adhesion between dentin and the two bond systems.
     结论  PBNT和 P- One均可产生良好的树脂浸润 ,粘接界面所形成的混合层和树脂突及其侧支构成的立体网络结构对粘接效果有着积极影响
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     Results:Laser with energy of 2-6 W and irradiating distance below 2 mm could effectively remove the smear layer from the dentin. Dentinal tubule orifices were minished or partly blocked. With the energy of irradiation increased ,the elimination of the intertubular dentin increased;
     结果 :照射距离 <2mm ,2~ 6W能量的激光均能有效去除牙本质表面玷污层 ,牙本质小管管径减小或部分封闭 ,随着能量增高 ,管间牙本质去除逐渐增多 ;
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  相似匹配句对
     Effects of fluoride on dentin
     氟对牙本质作用的研究进展
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     The development of dentin bonding agent
     牙本质粘接剂的研究进展
短句来源
     In addition, the expression of ICAM-1 and HLA-DR was associated with lymphcytes infiltration in the local perivascullar and intertubular structure.
     此外 ,在I CAM 1和HLA DR表达增强的局部血管周围和小管间质伴有大量淋巴细胞浸润。
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     The pulp of spleen, the intertubular tissue ofkidney, the sinusoid of liver and the submueosa of small intestine are main hemato-poietie centers of the fish.
     脾脏的脾髓,肾脏的管间组织、肝脏的窦状隙和小肠的粘膜下层是团头鲂的造血区。
短句来源
     Results The histological changes showed tubular atrophy and disappearance, widening of intertubular spaces with increased lymphocytes and mononuclear cells infiltration and fibrosis.
     结果 肾静脉结扎侧肾逐渐出现肾小管萎缩 ,肾间质淋巴、单核细胞浸润和纤维化等肾小管间质纤维化的典型病变。
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  intertubular dentin
The filling material had emission characteristics closer to the normal intertubular than to transparent intertubular dentin.
      
The emission spectral characteristics under 351 nm photoexcitation indicate differences between normal and transparent intertubular dentin.
      
Raman spectroscopy revealed a shift in the 1066 cm-1 band to 1072 cm-1 from normal to transparent intertubular dentin.
      
The tubule filling material in the transparent zone, however, exhibited values between peritubular and intertubular dentin.
      
In late pre-dentin and dentin collagen type I was found in intertubular dentin and in the zone between enamel and dentin.
      
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Objective Root canal walls were irradiated by a diode laser at the wavelength of 1320nm and observed under a scanning electron microscope.Methods Six fresh extracted maxillary central incisors were used in this study.The six teeth were divided into three groups of two teeth each:group A and group B were treated by both the diode laser and conventional method,the root canal walls in group A and group B were irradiated by the continued wave diode laser via a single mode fiber for five minutes and for two times...

Objective Root canal walls were irradiated by a diode laser at the wavelength of 1320nm and observed under a scanning electron microscope.Methods Six fresh extracted maxillary central incisors were used in this study.The six teeth were divided into three groups of two teeth each:group A and group B were treated by both the diode laser and conventional method,the root canal walls in group A and group B were irradiated by the continued wave diode laser via a single mode fiber for five minutes and for two times with the interval of 30 minutes respectively,group C was used as control group.All three groups were observed under the scanning electron microscope.Results The scanning electron microscope study showed:In group A,some intertubular dentin were melted and crystallized,and the decay layer was almost disappeared.The dentinal tubule was almost sealed.In group B,the dentin were melted thoroughly,the root canal walls were smooth,clear and no debi,and the dentinal tubules were sealed thoroughtly.In group C,it was found that a big irregular decay was coated on the surface of each root canal wall and a few dentinal tubules could be seen.Thus,in all specimens,there were no cracks on the root canal wall.Conclusion The decay layer can be disappeared when it is irradiated by the laser at the wave lengty of 1320nm,which facilitates root canal treatment.

目的 应用波长 1 3 2 0nm的半导体激光照射根管内壁 ,观察其扫描电镜图像改变。方法 取 6颗新鲜离体上颌中切牙 ,随机分成A、B、C三组 :A组常规根管预备加单模光纤连续波半导体激光照射 5分钟 ;B组常规根管预备加连续波激光照射两次 ,每次 5分钟 ,间隔 3 0分钟 ;C组为常规根管预备对照组。三组牙齿标本均进行扫描电镜观察。结果 A组部分管间牙本质熔融 ,呈均质状结构 ,玷污层大部分消失 ,管壁散在附着少量白色结晶样物质 ,牙本质小管大部分封闭。B组牙本质小管全部封闭 ,管壁平坦 ,管间牙本质熔融 ,呈均质状结构 ,玷污层消失 ,管壁干净无碎屑。C组根管内壁覆盖了大块不规则玷污层 ,可见少许牙本质小管。而且 ,所有标本根管壁未见裂隙和碎裂现象。结论 激光照射根管内壁 ,可使管壁表面玷污层消除 ,产生熔融层 ,有利于根管治疗。

Objective The purpose of this study was to investigate the microstructure and bonding mechanism of bonding interfaces of two current one bottle dentin bond systems(Prime & Bond ○R NT, PBNT;Prime one Mirage TM , P One). Methods Fifteen extracted, caries free human molars were prepared according to a modified method used for microtensile bond strength measurement. Each crown was divided into nearly equal halves with a 5 mm deep slot for accepting treatment of the two dentin bond systems, respectively....

Objective The purpose of this study was to investigate the microstructure and bonding mechanism of bonding interfaces of two current one bottle dentin bond systems(Prime & Bond ○R NT, PBNT;Prime one Mirage TM , P One). Methods Fifteen extracted, caries free human molars were prepared according to a modified method used for microtensile bond strength measurement. Each crown was divided into nearly equal halves with a 5 mm deep slot for accepting treatment of the two dentin bond systems, respectively. After 24 h storage in distilled water at 37℃, the bonded teeth were subjected to two treatments: 5 teeth were observed by and tested for microtensile bond strengths without further treatment and 10 teeth were thermocycled(2400 cycles, between 5℃ and 55℃) prior to SEM observation and bond strength testing. Hour glass shaped microspecimens with a thickness of approximately 0.5 mm were cut from each tooth and used for SEM observation and microtensile bond strength measurement. Results A typical resin infiltrated zone (hybrid layer) with a thickness of 3~5 μm and well formed cone shaped resin tags that penetrated the dentinal tubules were clearly observed at the resin dentin interfaces in the two bond systems. There were multiple lateral branches of tubular resin tags that interconnected to form a micronetwork of resin. No evident differences in SEM images between the two bond systems as well as between thermocycling and without thermocycling in each bond system were found. Conclusion PBNT and P One provided good resin infiltration, producing a three dimensional interlocking micronetwork of resin tags in the dentin tubules with multiple lateral branches that penetrate the intertubular dentin, which positively influenced the adhesion between dentin and the two bond systems.

目的 研究两种新型牙本质粘接剂 Prim e & Bond○RNT(PBNT)和 Prim e one Mirage TM(P- One)粘接界面的超微结构和粘接机理。方法 选用 15颗拔出的无龋人类磨牙 ,按牙本质粘接剂微拉伸强度测试标本预备法 ,将各试验牙预备成牙冠中部有一深约 5 m m的小槽隔开的两个粘接面 ,以分别接受两种粘接剂处理。粘接后的标本浸于 37℃的蒸馏水中 2 4 h后分成两组 : 组 (5颗牙 )直接进行扫描电镜观察和粘接强度测试 ; 组 (10颗牙 )则在扫描电镜观察和粘接强度测试前行 5℃和 5 5℃的冷热循环 2 4 0 0次。将两组牙齿标本修整、片切成厚约 0 .5 mm的哑铃状系列微型薄片 ,供扫描电镜观察和拉伸测试。结果  PBNT和 P- One各自的粘接界面均可见厚约 3~ 5μm的混合层和伸入牙本质小管内的树脂突及彼此交织成网的树脂突侧支。此两种粘接剂以及它们各自是否经过温度循环 ,粘接界面的 SEM形貌均无明显差异。结论  PBNT和 P- One均可产生良好的树脂浸润 ,粘接界面所形成的混合层和树脂突及其侧支构成的立体网络结构对粘接效果有着积极影响

Objective:To observe the elimination of smear layer on the dentin exposed to Er,Cr:YSGG laser with different energy and irradiating distance. Methods:The in vitro first premolar was selected and slices with 1.5 mm thickness were obtained by horizontal sectioning through the middle third of the teeth crown using a high-speed bur. Each dentinal slice was irradiated under the laser with different irradiating distance(<2 mm,3 mm)and different energy(1,2,3,4 or 6 W).After routine preparation for scanning electronic...

Objective:To observe the elimination of smear layer on the dentin exposed to Er,Cr:YSGG laser with different energy and irradiating distance. Methods:The in vitro first premolar was selected and slices with 1.5 mm thickness were obtained by horizontal sectioning through the middle third of the teeth crown using a high-speed bur. Each dentinal slice was irradiated under the laser with different irradiating distance(<2 mm,3 mm)and different energy(1,2,3,4 or 6 W).After routine preparation for scanning electronic microscopic examination, the specimens were observed with SEM. Results:Laser with energy of 2-6 W and irradiating distance below 2 mm could effectively remove the smear layer from the dentin.Dentinal tubule orifices were minished or partly blocked.With the energy of irradiation increased ,the elimination of the intertubular dentin increased;on the other hand,laser with energy beyond 4 W and irradiating distance of 3 mm could also effectively eliminate the smear layer. Conclusion:Energy of 2-3 W(irradiating distance below 2 mm)and energy of 4-6 W(irradiating distance about 3 mm) are recommended setting of Er,Cr:YSGG laser for removing the smear layer from the dentin surface.

目的 :观察不同能量与照射距离的Er ,Cr :YSGG激光照射后 ,牙本质表面形态变化和玷污层的去除情况。方法 :选用离体第一前磨牙 ,金刚砂片垂直于牙长轴在冠中 1/3处横断 ,制 1.5mm厚牙片 ,不同照射距离 ( <2mm ,3mm) ,不同能量 ( 1、2、3、4、6W )激光照射牙本质 ,常规制SEM标本后扫描电镜观察。结果 :照射距离 <2mm ,2~ 6W能量的激光均能有效去除牙本质表面玷污层 ,牙本质小管管径减小或部分封闭 ,随着能量增高 ,管间牙本质去除逐渐增多 ;照射距离 3mm时 ,大于 4W的激光也能有效去除玷污层。结论 :照射距离 <2mm ,能量为 2~ 3W ,与照射距离 3mm ,能量大于 4W ,可作为Er ,Cr :YSGG激光用于去除牙本质表面玷污层的参考参数。

 
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