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- Objective: To analyze the relation ship between Streptococcus mutans, Actinomyces and dental root surface caries. 目的:分析变形链球菌和放线菌与根面龋的关系。
- Objective To find the evidence of the effect of microbiotic collagenase in root surface caries by observing the destruction of collagenous matrix on root surface. 目的通过对根面牙骨质基质胶原纤维降解破坏情况的超微结构观察,以寻找微生物源性胶原酶在根面龋中发生作用的证据。
- Keywords lanthanum;demineralization;dental root surface caries; 口腔预防;镧;脱矿;牙根面龋;
- PREDOMINANT CULTIVABLE FLORA ISOLATED FROM HUMAN ROOT SURFACE CARIES 根面龋牙本质中厌氧菌的培养分离及鉴定
- An analysis of the dental plaque microbiology of root surface caries in elderly patients 老年牙根龋患者菌斑致病菌分析
- A SEM study of effect of microbiotic collagenase in artificial root surface caries lesions 胶原酶在人工根面龋样损害中作用的超微结构研究
- ESTABLISHMENT OF A GAS CHROMATOGRAPHY METHOD FOR ANALYSIS OF LACTATE ACID IN HUMAN ROOT SURFACE CARIES 气相色谱法测定根面龋乳酸含量
- Clinical application of the surfactants-fluoride varnishes on preventing early root surface caries in senile patients 洗必泰氟化钠涂料治疗老年人早期根面龋的临床应用
- root surface caries 根面龋
- Fluor protector was used to treat the root surface and covered once in half a year.Then we observed the change of the caries prevalence rate and DMFT two years later. 方法选择197例老年人用氟保护漆来涂布根面,每半年涂布1次,2年后观察根面龋的患龋率、龋均的变化。
- Methods To incubate the caries free permanent teeth with acid gelatinoid and/or collagenase, then to observe the ultrastructural change of root surface under scanning electron microscope . 方法将无龋恒牙分组经酸性胶液和胶原酶分别或共同孵化处理后切割制样,脱水干燥,喷金,扫描电镜观察根面超微结构的变化。
- Macroscopic observation : Smooth surface caries is conical in shape with its apex towards the dentine. Fossa, pit or fissure caries is on the contrary. 肉眼观察:平滑面龋多呈底向外,尖向内的三角形及其它不典型形态,而窝沟龋的病损呈倒三角形(尖向外,底向内),病变区常有黄色色素沉积。
- Water deficit is influenced by the level of soil water potential at the root surface. 水分亏缺是受根系表面土壤水势高低影响的。
- Both ion diffusion and transport of ions to the root surface by mass flow appear to be dependent on soil moisture content. 离子扩散和通过质体流动把离子运送到根表面,看来似乎都取决于土壤的含水量。
- Iron plaque formation on the root surface of waterlogging plants leads to uptake more cadmium. 渍水植物根表形成的铁氧化物胶膜可促进植物对镉的吸收。
- There is only one pairs of epistatic QTLs for root length, root surface area and root tips, respectively. 其中根体积和平均根直径各检测到4对和5对上位性数量基因座,而根长、根表面积和根尖数量都分别只检测到一对上位性基因位点。
- Tooth bone is form tooth root surface layer, the strong organization with yellower colour and lustre. 牙骨质是构成牙根表层的、色泽较黄的硬组织。
- Objective To study the root surfaces following ultrasonic subgingival scaling. 目的研究不同功率超声龈下刮治对根面的影响。
- The experiment results showed that low temperature restrained root surface, root volume and length of axile root. 结果表明:在低温胁迫下,玉米苗期根表面积、根体积、轴根长都明显低于常温处理。
- Therefore, for periodontitis patients, the root surface area is important to the reservation and function of periodontitis teeth. 对于牙周病人而言,剩余牙周膜面积大小对牙周炎患牙的保存和功能行使尤为关键。