他认为，牙冠和牙根有很多的遗传成分，受环境和其他因素的影响很小。
He argues that tooth crowns and roots have a high genetic component, minimally affected by environmental and other factors.
然后我把掉牙的地方与牙冠连接上。
需要做成瓷牙冠套或烤瓷冠套。
That tooth needs a porcelain jacket or a ceramic veneer crown.
镶上金牙或者镶上牙冠。
有了金钉就可以把金牙冠支持住，安全得多。
The gold post will build up enough of the tooth to hold the gold crown securely.
需要将作桥墩的牙磨掉一些，准备套上金牙冠。
It would be necessary to "grind down" the size of these abutment teeth to prepare them for crowns.
可钻，填补蛀牙，提取牙齿，并更换部分牙冠。
May drill and fill cavities, extract teeth and replace portions of tooth crown.
可以制作一个美观的牙冠，来修复牙缺失的间隙。
A cosmetic temporary crown can often be made to fill the missing space.
主要的原因是牙冠做的不好，周围有突出来的牙龈。
The main cause was a poorly made crown with overhanging margins.
牙冠可以加强和保护剩馀的牙齿结构，并改善外观。
Crowns strengthen and protect the remaining tooth structure and can improve the appearance of your smile.
在间隙两边的牙齿上必须做上金牙冠，用来支撑住桥。
Gold crowns would have to be made for the teeth next to the space to hold the bridge.
目的：评估用修复的方法保存后牙牙冠纵裂牙齿的效果。
Objective To estimate the effect of restorative treatment on conserving posterior crown fracture tooth.
目的探讨牙冠延长术对前牙残根的保存修复效果的影响。
Objective to investigate the effects of surgical crown lengthening on conservative restoration in anterior residual root.
目的：研究牙硬组织表面电位与牙冠向萌出或过萌的关系。
OBJECTIVE: To investigate the influence of surface potentials of tooth hard tissue on its migration towards crown and supraeruption.
接着的是跨国旅行，新科葡萄牙冠军本菲卡坐阵主场迎接挑战。
Then it is a journey abroad where freshly-crowned Portuguese champions Benfica await.
目的：观察根管治疗后的下颌磨牙冠缺损类型与冠根折的关系。
Objective: To evaluate the relationship between crown defect types and crown fractures of root-canal-treated mandibular molars.
用拇指和食指沿着齿龈向牙冠方向缓和地拉扯牙线，以去除牙菌斑。
Use your thumbs and forefingers to gently pull the floss from the gumline to the top of the tooth to scrape off plaque.
这些材料中的铅在牙冠和器具的正常使用下几乎是不会渗出来的。
Lead found in these materials is subject to very little leaching over the life of an appliance or crown.
结论：用全冠修复后牙牙冠纵裂是保存纵裂牙齿的有效方法之一。
Conclusion Restoring posterior tooth crown longitudinal dehiscence is one of the effective methods to keep the sick tooth.
Palmer指出婴儿牙齿蛀牙可能会损害它们下方的恒牙牙冠的生长。
Palmer notes that tooth decay in baby teeth can result in damage to the developing crowns of the permanent teeth developing below them.
首先，我要在牙齿的顶端(牙冠)开一个口，使受感染的牙髓暴露出来。
First, I'll make a small opening in the top (crown) of the tooth to expose the infected pulp..
结论数字化标准牙冠模型可以成为牙体解剖教学的有力计算机辅助手段。
Conclusion The digitized models of standard teeth crowns could provide a new computer aided method for dental anatomy instruction.
目的研究后牙冠根纵折的特点和临床表现，客观评价最佳的治疗和预防措施。
Objective To investigate the characteristics and clinical features of the longitudinal fractures of posterior teeth and evaluate the therapeutic methods.
所以上周五结果揭晓的时候球迷们都很高兴曼联确实是和葡萄牙冠军分在一起。
So there were more than a few smiles among United supporters last Friday when the Reds were paired with the Portuguese champions.
如果你有龋病史，戴的有牙冠，冠桥修复体或者戴的有牙套，你应该更勤快的去看牙医。
If you have a history of cavities or crown and bridge work, or are wearing braces, you should visit the dentist more often.
结果：经修复的残冠残根能恢复牙体牙冠的生理形态和正常的切割、咬牙合咀嚼功能。
Results:The repaired residual coronas and roots recovered their physiological functions and the normal function of cutting, chewing and artculating.
结果：经修复的残冠残根能恢复牙体牙冠的生理形态和正常的切割、咬牙合咀嚼功能。
Results:The repaired residual coronas and roots recovered their physiological functions and the normal function of cutting, chewing and artculating.
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