骨质象牙化：骨头退化成坚硬的象牙质。
Eburnation: degeneration of bone into a hard ivorylike mass.
它们都有研磨作用，会磨损牙釉质，长此以往会导致牙齿敏感和发黑，因为牙釉质磨损会暴露出里面黄褐色的牙质。
They are abrasive and can wear your enamel away and in the long-term lead to sensitivity and darkening of your teeth as the enamel wears and the inner amber-coloured dentine becomes visible.
他用的是一道激光而不是烦人的涡轮钻来清除象牙质和牙齿的珐琅质。
Instead of a whiny turbine drill he USES a flash of laser light to blast away dentin and enamel.
周后，冒出了两公厘宽的臼齿牙冠，具有牙髓腔、牙根的根尖、一层如骨骼般的象牙质，以及最基本的珐琅质。
Thirty weeks later two-millimeter-wide molar crowns emerged complete with pulp chambers root tips and bonelike layers of dentin and in a first enamel.
这本书综合评论压焊给牙质和牙骨质和分析相关的黏著机制涂瓷釉。
This book comprehensively reviews bonding to enamel, dentin and cementum and analyses relevant adhesion mechanisms.
此外氯还会导致一口黄牙，因为酸性物会剥蚀掉釉质，致使后层颜色较深的牙质显露出来。
This can result in yellowing teeth - because the acid strips the enamel and starts to reveal darker-coloured dentine underneath.
象牙质敏感可以定义为因曝露的象牙质所引发的疼痛，通常是对外来刺激的反应，而且是无法用其他任何牙齿疾病来解释的。
Dentine hypersensitivity may be defined as the pain arising from exposed dentine, typically in response to external stimuli, and which cannot be explained by any other form of dental disease.
牙齿的外层有珐琅质及象牙质来保护牙髓。
Outer layer of the tooth enamel and ivory to protect the pulp quality.
象牙质敏感是当牙齿接触或冷或热的食物所引起的急剧的，短暂的疼痛。
Dentine hypersensitivity is a sharp, sudden pain arising from the teeth when exposed to touch or hot and cold foods.
这是因为过氧化氢会渗入釉质的外部保护层并进入牙质下面的较为柔软的一层，刺激神经组织比较多的牙髓。
That's because hydrogen peroxide soaks through the protective outer coating of enamel and into the softer layer of dentin underneath, irritating the nerve-rich dental pulp at the core.
在本发明的范围内还包括相关方法，如封闭牙质小管的方法。
Also included within the scope of the invention are related methods, such as methods of occluding a dentin tubule.
在本发明的范围内还包括相关方法，如封闭牙质小管的方法。
Also included within the scope of the invention are related methods, such as methods of occluding a dentin tubule.
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