牙

MTA was used to manage clinical problems. These included pulpless permanent teeth with incomplete root formation and perforation in roots or furcations.

本研究收集了2000—2001年期间在临床上治疗的牙根或根分叉穿孔的病例和根尖未发育完成并牙髓坏死的病例，用MTA修补穿孔和行根尖屏障术，共治疗10例，12颗患牙。

This study finds that there is good effect on restoring the large defect in pulpless teeth body with retention form and resistance form prepared by zinc phosphate cements, matching dental amalgam restoration.

而利用锌汀制备一定的固位形和抗力形，配合银汞合金修复无髓牙牙体大面积缺损。

In the 1st group, 100 specimens were crown with pulp tissue drawn from pulpotomy. In the 2nd group, 163 specimens were extracted teeth.

第1组100个牙髓切断时去除的冠髓，第2组163个拔除的患牙，均在光镜下观察。

To study the curative effects of 2% glutaraldehyde pulpotomy for the pulpitis of primary motar teeth in order to provide the evidences for clinic.

探讨2%戊二醛(2% glutaraldehyde)活髓切断术治疗乳磨牙牙髓炎的临床疗效，为临床推广提供依据。

METHODS 104 cases of primary motar teethes were selected and randomly divided into the upper jaw and lower jaw groups according to their position. Using the 2% glutaraldehyde pulpotomy, the curative effects of three and six months after operation were comparatively analyzed with following up the patients.

选用104例乳磨牙牙髓炎，按牙齿分布分成上颌组与下颌组，采用2%戊二醛活髓切断术的治疗方法，追踪分析两组患儿在三个月与六个月的疗效并进行对比。

Partial pulpotomy has been utilized in teeth with pulp exposure due to traumatic crown fracture.

摘要局部断髓常应用于因外伤牙冠断裂导致牙髓暴露之牙齿治疗。

Abstract］objective: to assess the feasibility of ferric sulfate as a pulpotomy agent in primary teeth.methods: 80 primary molars with deep caries close to the pulps were selected.

摘要］ 目的：探讨硫酸铁溶液作为儿童磨牙牙髓切断术药物的可行性。

Methods: Forty adult Wistar rats were used for these operations of transplantation of frozen autogenous tooth-mandible compound and fresh ATMC. Then the healing process after transplantation of frozen ATMC and fresh ATMC was compared by clinical, radiographical, histological and microangiographical observation.

选用健康成年Wistar大白鼠40只，任取2只用于观察正常颌骨的组织学图像，其余的大鼠随机分为新鲜移植组和冷冻组，行牙-下颌骨复合组织块移植到胫骨区的手术，分别于术后1、2、3、4、6、8、12、16、20周时处死动物，采用大体观察、X线片、组织学及微血管造影等观察手段对牙-下颌骨复合组织块移植后的愈合过程进行比较。

Methods The resinic artificial teeth were deposited with 50nm or 100nm nanometer amorphous diamond film after pretreated with ultraviolet radiation or polarization.The effect of different methods of pretreatment and thickness of nanometer amorphous diamond films on the wearing resistance of resinic artificial teeth was evaluated.

分别用极化和紫外光照射的方法对人工牙进行预处理后，在其表面分别镀制50nm和100nm的纳米非晶金刚石薄膜，通过对其耐磨性能的测试，评价不同预处理方法和不同厚度薄膜对提高人工牙表面耐磨性能的影响。

The results of Pancherz analysis shows that the correction of negative overjet is mainly due to the advancement of maxilla and upper incisors. But the position changes of mandible and lower incisors imply that severe maxillary hypoplasia with high angle and/or mandibular retrusion is contraindicated by the method conducted in this study.

头影测量侧位片Pancherz分析法的分析结果表明，本研究中上颌后缩患者反覆盖的矫治主要由上颌骨、上切牙的前移引起的，但下颌骨和下切牙位置的变化提示适应症的选择应注意避免上颌后缩同时伴有高下颌角和／或下颌后缩的患者。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。