恒牙

Pitx2 express in epithelia of both milk tooth and permanent tooth.

而Pitx2在整个乳牙上皮都有强烈的表达，在恒牙上皮中也有表达。

In 35 milk tooth samples permanent and milk tooth samples weredivided into 5 dose groups each, and irradiated with 60Co γ ray at dose rate of 0.48 Gy/min. Radi-ation doses of 5 groups were 0.30, 0.50, 1.00, 3.00 and 5.00 Gy, respectively.

将恒牙和乳牙各分成4和5个剂量组，用60Co γ射线照射各组样品，剂量率为0.48 Gy／min，各组累积剂量分别为0.30、0.50、1.00、3.00和5.00 Gy。

Female's Chi of kidney begins to be vigorous from about 7 years old, it behaves: milk tooth fall off gradually while permanent tooth grow gradually, the hair would be no longer so short slender and yellow, it turns to be thick and strong, black and bright.

女子七岁左右，肾中精气开始旺盛，其表现为：乳牙逐渐脱落，恒牙逐渐生长，头发由小时候的细短枯黄，逐渐变为粗长坚硬，黑亮有光泽。

OBJECTIVE: To observe structural features of craniofacial hard tissue of permanent tooth occlusal period in the adolescent of Lhasa.

目的：观察西藏拉萨地区藏族恒牙牙合期青少年颅面硬组织结构特征。

If the child's permanent teeth after injuries, tooth injuries completely fell down, if not handled properly at this time would lead to life-long missing and should therefore be calm, back off the teeth.

如果宝宝的恒牙受伤后，受伤的牙齿完全掉了下来，这时如果处理不当便会导致终身缺牙，因此应当保持平静，找回脱落的牙齿。

Objective To investigate the treatment effects of hyperbaric oxygen in replantation of young permanent teeth.

目的 探讨年轻恒牙脱位再植后，高压氧(hyperbaric oxygen，HBO)治疗对牙髓牙周损伤修复的作用。

METHODS: Immunohistochemical staining was adopted for studying the expression of CaB in healthy and carious teeth, and the results were analyzed by image analysis.

用免疫组化ABC法观察CaB在健康和龋坏人恒牙牙髓中的表达，并用图像分析系统进行半定量分析。

4The ratio of filling restorations is higher in highly citified and densely populated area.

四牙医医疗院所所在地区别与都市化位阶，愈都市化、人口愈集中，填补的发生率愈有上升的现象，乳牙情形又比恒牙严重。

Objective To evaluate the nonextraction orthodontic therapy effects of multiloop edgewise arch wire on patients who had previously been classified as orthognathic surgical cases.

目的 使用多曲方丝弓(multiloop edgewise wire arch， MEAW)技术对恒牙期骨性Ⅲ类错手术适应证患者进行非拔牙矫治并观察其疗效。

Objective To investigate the results of early treatment of crossbite malocclusion and follow up the eruption of permanent dentition and occlusal stability.

目的：探讨早期矫治反牙合畸形并观察其恒牙列萌出及咬合稳定的关系。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。