掌握牙本质龋的扩展方向及病理形态。
To grasp the direction of dentine caries expending and its pathological form.
目的：通过对牙本质龋中有机酸含量的测定，探讨牙本质龋形成原因。
Objective:To explore the causes of dentin caries by assay of the content of organic acids in carious dentin.
结论：五倍子能抑制胶原分解，对脱矿的进一步进行产生影响，从而使牙本质龋的进展受到抑制。
CONCLUSION: Chinese nutgall can inhibit collagen degradation and affects the further demineralization in dentin matrix, which consequently inhibit the advanced dentine caries.
结论：牙本质龋中的有机酸以乳酸含量最高，乳酸、甲酸、乙酸和丙酸占所有有机酸的98%以上。
Conclusion: lactate acid formate acid, acetate acid, propionate acid and butyrate acid constituted above 98% of all organic acids in carious dentin, with the content of lactate acid being the highest.
当龋坏扩散破坏到釉质下方，就进入了牙本质。
The decay reaches into the dentin, where it can spread and undermine the enamel.
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.
方法选取9颗无龋坏人磨牙，用600目碳化硅砂纸在流水冲洗下预备出统一的牙本质黏结面玷污层。
Methods Superficial occlusal dentin of 9 molars freshly extracted was finished with 600-grit SiC paper under running water.
目的：分析探讨乳牙釉质、牙本质钙含量状况与龋病关系。
Objective: To analyze the content of calcium in enamel and dentin of deciduous teeth and study their relationships with caries status.
结论：RECOLITE对老年人静止根面龋既有消毒作用又对其伴牙本质过敏症具有治疗作用。
Conclusions: RECOLITE is a kind of persistent, strong-effective, and safely sterilized sterilization agent for the treatment of dentine hypersensitivity of quiescent root caries in the elderly.
方法收集5组不同年龄组含有牙本质浅层龋的离体牙，每组各5颗牙齿。
Methods Collected 25 extracted teeth with shallow dentin caries in 5 age groups, each group 5 teeth.
〔摘要〕目的：探明牙本质深龋中的主要相关菌。
Objective: To determine the cariogenic bacteria in deep dentinal caries.
〔摘要〕目的：探明牙本质深龋中的主要相关菌。
Objective: To determine the cariogenic bacteria in deep dentinal caries.
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