关键问题是在牙体预备过程中，保证牙神经不受到损伤。
The key problem is preparing process in the tooth body and promise that the tooth nerve is free from harm.
病人：我的牙齿断了。牙神经已死，牙已变色，怎么办?。
Patient: I fell and broke my tooth. The nerve died, so the color has changed. What should I do?
过了一段时间，蛀坏的部分会蔓延至内牙的神经和血管。
After a while, the decay reaches the nerves and blood vessels of the inner tooth.
7月底公布的一揽子措施平静了对希腊、爱尔兰和葡萄牙的紧张神经，该措施长期担忧希腊的债务重组，而不是担忧对经济造成的创伤。
The package of measures announced in late July calmed nerves about Greece, Ireland and Portugal, with the long-feared restructuring of Greek debt not as traumatic as had been feared.
英国古生物学家们通过牙形石动物的软体解剖学研究，发现眼睛、脊索、神经索、肌肉组织、尾鳍等软组织；
The soft anatomy of conodont shows some soft tissues including eyes, notochord, nerve cord, myomeres and caudal fin.
对选择适宜长度的牙种植体，避免牙种植体损伤下牙槽神经等具有重要意义。
It is significant for choosing appropriate length of dental implantation, which avoid the injury for the inferior alveolar nerve.
目的：研究大鼠牙体、牙周组织中神经肽cgrp1受体的存在及其结合位点。
Objective: to investigate the existence and localization of CGRP1 re ceptor in rat dental hard tissues and in peridental tissue.
结论：以牙槽孔至颧下嵴起始部的弧长和弦长为标准弯制注射针头，采用口内注射法进行上牙槽后神经阻滞麻醉，成功率为98％。
Conclusion: We use L as arch length and H as chord length to bend syringe needle that is used to posterior superior alveolar nerve block anesthesia by intraoral injection. The success rate is 98%.
多数牙上有两道沟槽，以便引出下颚的毒腺的分泌物，内含神经毒素，但很少能致人死亡。
The venom (a neurotoxin) is conducted along grooves in the teeth from glands in the lower jaw. Bites are rarely fatal to humans.
多数牙上有两道沟槽，以便引出下颚的毒腺的分泌物，内含神经毒素，但很少能致人死亡。
The venom (a neurotoxin) is conducted along grooves in the teeth from glands in the lower jaw. Bites are rarely fatal to humans.
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