1) Crown surface discoloration
牙冠变色
2) Crown surface discoloration/prevent and treatment
牙冠表面变色/防治
3) Tooth discoloration
牙变色
4) front tooth discolouration
变色前牙
1.
Objective To observe the clinical effect of indirect composite veneer on in the treatment of buccal labial surface of front tooth discolouration and small tooth defects for the purpose of small amount of preparation,good retention and good strength,easy recovered,and provide new and reasonable choice of design for the esthetic dental restoration.
目的通过唇颊面间接修复树脂贴面的设计、制作,应用于变色前牙及小范围牙体缺损的美容修复方法,追求少磨牙、固位佳、强度大、易于修理的美容修复效果,为牙科美容修复的设计提供新的、合理的选择方案。
5) Pigmentation teeth
变色牙齿
6) Discolored teeth
变色牙
1.
The effects of Beyond cold light tooth whitening kit on bleaching discolored teeth
冷光美白技术治疗变色牙的临床疗效观察
2.
Method 60 pre-selected patients with discolored teeth were randomly and evenly divided into 2 groups.
方法:经过筛选的60位变色牙患者被随机均分为两组接受16%过氧化脲NGVB治疗。
补充资料：2,7-二氯变色酸
分子式：
CAS号：
性质：又称2,7-二氯变色酸。无色针状晶体。溶于水；微溶于乙醇、乙醚、丙酮。其二钠盐化学式为C10H4O8S2Cl2Na2·H2O,分子量469.20,灰色粉末,溶于水,不溶于乙醇。用于钛的光度测定。
CAS号：
性质：又称2,7-二氯变色酸。无色针状晶体。溶于水；微溶于乙醇、乙醚、丙酮。其二钠盐化学式为C10H4O8S2Cl2Na2·H2O,分子量469.20,灰色粉末,溶于水,不溶于乙醇。用于钛的光度测定。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条