牙

METHODS: Severely-decayed tooth used for abutment of removable denture were made routinely root canal therapy and repaired with post and core crown.

将选作基牙的残冠残根常规根管治疗后，桩核冠修复，缺失牙再行可摘义齿修复。

Post crown is comfortable and aesthetic for wear, and it can offer very good retention. It is the most important reason of the failure for final restoration that the residual root fracture again.

因其固位良好，外形和牙冠色泽接近天然牙，美观舒适，制作简便，支持与受力形式合理而为广大患者所喜爱。

Lower molar residual root/crown can be preserved for a long time after perfect enˉdodontic or root canal therapy and reconstruction of dental root post/core crown At understanding exactly the indicaˉtion.

笔者从1993年5月开始试着对那些下颌磨牙近远中根分离，髓室底缺如，已建议拔除的残根残冠采用单根独立桩核冠修复的83例136牙经3～5年以上复查，获得较满意的效果。

Objective To establish an in vitro culture model of the dentine-pulp complex.

目的 建立牙髓牙本质复合体体外培养模型。

Impacted tooth frequently appears in upper cuspid and upper central incisors .

较常见的是尖牙和上颌切牙的埋伏阻生。

Therefore, we have decided upon a very gentle curvature from the cuspid back to the second molar with the bicuspids being slightly wider than the cuspids.

因此，我们决定了一个非常轻柔曲率从尖牙回到第二磨牙与bicuspids被略宽比cuspids 。

The differences in the cuspid and the first molar distances of the casts were measured to determine the surgical change and the relapse.

分别测量每个模型两侧尖牙和第一磨牙近中腭面外形高点连线距离。

The incidence and severity of enamel decalcification in orthodontic treatment either in three groups or in the number of the patient's teeth of three groups were evaluated before and after treatment.

目的：了解用固定矫器治疗后的牙釉质脱矿的发生率及严重程度，并评价用75%NaF处理牙面和使用含氟牙膏后的结果。

Objective To evaluate the most effective method of fluoride application to prevent decalcification of enamel before,during and after etching in orthodontic treatment.

目的探讨氟化物在正畸治疗中预防牙釉质脱矿的最佳使用方法。方法制备正畸拔除的前磨牙96颗，随机分成4组，分别为对照组及酸蚀前、中、后用氟组，粘结托槽后，将每个样本分别放入装有2ml酸性人工唾液的试管。

Objective To find a simple and effective way to prevent enamel decalcification by guiding patients wearing fixed appliance to use fluoride mouth rinse.

目的 通过指导接受固定矫治器治疗的患者使用含氟漱口液，以期找到一种简便有效的方法来防治牙釉质脱矿，从而应用氟化物防治固定正畸治疗中的牙釉质脱矿。

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。