Method 500 copies of students’ questionnaire concerning bacterial plaque, dental calculus, periodontal disease, oral health through random sampling are analyzed.
方法对随机抽取的500名大学生进行现场问卷调查,内容包括牙菌斑、牙石、牙周病及口腔保健等相关知识,并统计结果。
Results 15-year-old group is significantly higher than 12-year-old group in gingival bleeding detection frequency; dental calculus detection frequency and average section count.
结果:两个年龄组的牙龈出血检出率、牙石检出率以及牙石平均区段数,15岁年龄组明显高于12岁年龄组。
The detection rates of gingival bleeding,dental calculus,periodontal pocket and periodontal attachment loss were 93.
01;牙龈出血、牙石、牙周袋、牙周附着丧失的检出率分别为93。
Clinical evaluation of three tooth preparation methods of PFM restoration;
金属烤瓷修复体3种龈缘设计的牙龈指数评价
Osteocalcin Expression of Alveolar Bone Tissues by Low Power Laser Irradiation During Experimental Tooth Movement in Rabbits;
低强度激光对兔实验性牙齿移动牙槽骨组织中骨钙素水平变化的影响
Anatomic measurement of permanent tooth in Korean nationality;
朝鲜族恒牙解剖测量及其意义
To remove(tartar)from tooth surfaces with a pointed instrument.
除牙垢用带尖工具除去牙齿表面的（污垢）
Within 24 hours, plaque can harden to form tartar, which can only be removed by a professional.
24小时内，牙垢膜便会硬化，形成牙石，必需由牙医清除。
The distribution of Porphyromonas gingivalis and Treponema denticola in different depth of periondontal pockets
牙龈卟啉菌和牙垢密螺旋体在不同深度牙周袋内的分布
Glister Toothpaste offers multifunction performance to clean safely, remove plaque, fight cavities, whiten teeth and freshen breath all in one go!
一次过达到清洁牙齿、去除牙垢、预防蛀牙、洁白牙齿和保持口气清新等全部功能。
Glister Toothpaste with SYLODENT provides optimum abrasiveness for effective stain removal and enamel-safe polishing.
含有SYLODENT亮洁粒子的健齿氟素牙膏能有效彻底去除牙垢而不损珐琅质。
In just one hour, plaque bacteria will start converting sugar and starch particles into harmful acids that attack the tooth enamel.
短短一小时，已足够让牙垢膜细菌把糖份及淀粉质转化为有害的酸性物质，侵蚀珐琅质。
It is difficult to scale off the tartar on the inside of one's teeth.
剔除牙内表面之垢十分不容易。
Detection of Treponema Denticola from Subgingival Plaque of Chronic Periodontitis by PCR;
PCR法检测慢性牙周炎龈下菌斑中齿垢密螺旋体
Detection of Treponema Denticola from Subgingival Plaque of Chronic Periodontitis by Different PCR Primer
不同引物检测慢性牙周炎龈下菌斑中齿垢密螺旋体
jet-projecting machine, sand, steam, powder or liquid (excl. container cleaning machines, soot remover for boilers, and jet type dental drills)
砂、蒸气、粉末或液体喷射机（不包括容器清洗机器、锅炉除烟垢器及喷射式牙钻
The slogan "Wonder where the yellow went" was also viewed by many as a racial slur.
那句广告用语“不知牙上的黄垢哪里去了”也被许多人看成是一种种族诽谤。
Research on Anti-Corrosion and Anti-Encrustation Process for Oil and Water Well Drill Rod;
油水井筒腐蚀结垢及防垢除垢工艺研究
metal cleaning for rust prevention(chemical cleaning of steel products)
防锈用金属除垢方法（铁德化学除垢法）
Evaluation on the Scale Inhibitive Performance of PAA-Static Anti-Scaling Method
聚丙烯酸阻垢性能的评定——静态阻垢法
Dynamic Research of CaSO_4 Scaling and Inhibition in RO Systems;
反渗透系统中CaSO_4结垢和阻垢动态研究
Research on the scaling reasons and prevention of Wangxin 25 well;
王新25井结垢原因分析及防垢研究
Scale Inhibition Performance of HPMA-EDTMPS Compound Scale
HPMA和EDTMPS复合有机阻垢剂的阻垢性能
Synthesis of New Scale Inhibitor ASV and Study of its Scale Inhibition Effect
新型阻垢剂ASV的合成及阻垢性能研究