用微硬度测定仪检测根管牙本质的微硬度。
The roots were sliced and root-dentin microhardness was measured.
目的：测定健康恒牙牙本质的钙、磷百分含量。
Objective: Detecting the contents of Calcium and Phosphorus in dentin of the healthy permanent teeth.
目的：了解上下颌第一磨牙牙釉质及牙本质的厚度。
Objective: To measure the thickness of enamel and dentin of the first molars.
这些研究显示DPP在正常牙本质和病理性牙本质的形成中起重要的作用。
Previous studies clearly indicate the importance of DPP in both normal and diseased dentin formation.
成牙本质细胞作为牙髓细胞的主要成分，具有在牙发育期间和成熟牙内生成牙本质的功能。
As the main components of dental pulp cells, the odontoblasts were responsible for the formation and maintenance of dentin during the development and mature age of teeth.
硬化牙本质又被称作透明牙本质，是牙本质的一种反应性改变，在结构上与正常牙本质存在很大的差异。
Sclerotic dentin, also named as transparent dentin, is a kind of reactive change of dentin, has great difference from normal dentin in structure.
混合层和树脂突的质和量以及不同的酸蚀系统和酸蚀时间都会影响硬化牙本质的复合树脂黏结修复效果。
The effect of the sclerotic dentin repaired with composite resin can be affected by the quality and quantity of hybrid layers and resin tags, and different etching systems and acid etching time.
方法：用电子测量尺测量23颗上颌第一磨牙和18颗下颌第一磨牙牙合面不同部位牙釉质、牙本质的厚度。
Methods: The thickness of enamel and dentin at different positions of 23 upper first and 18 lower first molars were measured by electronic ruler.
结论：硬化牙本质的粘接特性与正常牙本质存在差异。树脂突的数量及交通枝不足是硬化牙本质粘接强度受限的可能因素。
Conclusion: Bonding to sclerotic dentin is different from sound dentin, and may be compromised by the fewer resin tags and communications.
在检查的切片中，与正常牙齿相比，在多生儿中观察到更多的球间牙本质和更少的钙化小球。
In the slices examined more interglobular dentin and less calcified globules were observed in the supernumerary than in the normal teeth.
这些细胞长成后，研究人员发现它们的结构已经分化成熟为各种成分并形成了牙本质、釉质、牙髓、血管及牙周韧带。
After growing them they found their structures had matured into the components that make teeth including dentin enamel dental pulp blood vessels and periodontal ligaments.
这些细胞长成后，研究人员发现它们的结构已经分化成熟为各种成分并形成了牙本质、釉质、牙髓、血管及牙周韧带。
After growing them, they found their structures had matured into the components that make teeth, including dentin, enamel, dental pulp, blood vessels, and periodontal ligaments.
此外，约百分之三十的城市居民有牙本质敏感问题，而牙齿偏黄和口气问题也不容忽视。
In addition, about thirty percent of the city's residents have dentine hypersensitivity, and teeth yellow and tone problem also nots allow to ignore.
目的：研究人前磨牙牙髓牙本质复合体的增龄性变化，探讨牙衰老和老年牙病的形态学基础。
Objective: to provide morphological basis for dental aging and senile teeth diseases and to study age-related changes of pulp-dentin complex of human premolar.
方法：通过动物实验了解冷冻治疗牙本质敏感的机制及优选冷冻剂量。
Methods: the mechanism of cryotherapy for dentinal hypersensitivity and the dose of cryosurgery were studied in guinea pigs.
目的：建立人牙切片体外器官培养模型，并采用该模型研究尼莫地平对牙本质形成的影响。
PURPOSE: to establish human tooth slice organ culture model in vitro, and to study the effects of nimodipine on dentinogenesis through this model.
钟状晚期表现于成牙本质细胞的表达明显下调，而成釉细胞呈阳性表达。
The expression of odontoblast significantly decreased in the late bell stage, while ameloblast showed positive expression.
目的：评价氟保护漆应用于牙周非手术治疗后早期对根面牙本质敏感症的作用。
AIM:To evaluate the effect of early Fluor Protector application after non-surgical periodontal treatment on root dentinal hypersensitivity.
从髓室自根尖方向，牙本质小管口的直径、密度和相对面积均逐渐减小。
From pulp chamber to root apex, the diameter, the density and the mean percentage area of tubular openings all reduced gradually.
目的：评价硅酸三钙对牙本质小管的阻塞能力。
Objective: To evaluate the tubule occluding ability of tricalcium silicate.
目的：探讨钙元素在乳牙牙本质内的分布及其与龋病易感性之间的关系。
AIM: To investigate the relationship between the distribution, content of calcium in deciduous dentin and caries susceptibility in children.
目的：观察全冠牙体预备后牙髓牙本质复合体的反应及剩余牙本质厚度和修复时间对牙髓的影响。
Objective: To determine the importance of the remaining dentin thickness, preparation depth and post-operative time on the pulpal inflammation after the crown preparation.
目的探讨NS牙面涂料对牙本质过敏症的治疗机制。
Objective To know the mechanisms of treating dentine hypersensitivity by ns Paint.
下面就第三期牙本质基质的形成过程作一综述。
This review focused on the process of production of tertiary dentin matrix.
目的：分析桩冠修复后对根管壁牙本质应力分布的影响。
Objective: To evaluate the effect of the stress distribution of dentine under post crown prosthesis.
牙本质小管口的相对面积各组之间的差异均有显著性（P<0.05）。
There were significant differences ( P< 0.05) in the relative area of the dentinal tubule orifices between two groups.
牙本质小管口的相对面积各组之间的差异均有显著性（P<0.05）。
There were significant differences ( P< 0.05) in the relative area of the dentinal tubule orifices between two groups.
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