1)  CI
牙石指数（CI）
2)  dental calculus
牙石
1.
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。
2.
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。
3)  subgingival calculus
龈下牙石
1.
Effects of Er,Cr:YSGG laser on removing subgingival calculus;
Er,Cr:YSGG激光刮治龈下牙石的效果观察
4)  Dental gypsum
牙石膏
5)  Isolated dental caculus
离体牙石
6)  prevent and cure calculus
牙石防治
参考词条
补充资料：(6CI,7CI,8CI,9CI)-甲基三苯氧基硅烷
CAS：3439-97-2
分子式：C19H18O3Si
分子质量：322.43
中文名称：(6CI,7CI,8CI,9CI)-甲基三苯氧基硅烷
英文名称：Silane, methyltriphenoxy(6CI,7CI,8CI,9CI)；methyltriphenoxysilane；methyl-triphenoxy-silane；Silane,methyltriphenoxy-；Silane,methyltriphenoxy(6CI,7CI,8CI,9CI)
说明：补充资料仅用于学习参考，请勿用于其它任何用途。