1. Root surfaces of canines and molars in the maxillary arch and molars in the mandibular arch were the most frequently affected teeth by caries.
在上颌牙位，尖牙和磨牙根面患龋较高；在下颌牙位，磨牙患龋最高。
2. Applying the temporary full veneer crown before the root canal treatment for cracked teeth can avoid crown fracture and induce less adverse effects.
隐裂牙根管治疗前制作临时树脂全冠对保护患牙，防止冠折有良好的效果，同时不良反应更少。
3. teeth root的意思
3. Methods We Applied the orthodontic band, temporary full veneer crown and steel-wire cerclage to protect cracked molar teeth before root canal treatment. Compare the reserve curative effects of the cracked molar teeth, adverse effects and protectors''shape of the three methods.
选用正畸带环、临时树脂全冠、钢丝环扎3种方法对隐裂磨牙根管治疗前进行保护，并就患牙保留疗效、不良反应、保护装置外形进行临床对比。
4. The database was composed of 18 dental treatments from January 1988 to December 2004. The 18 dental treatments included in this study as following: Amalgam fillings (single-, double-, and triple-surface), composite resin fillings of anterior teeth (single- and double-surface), composite resin fillings of posterior teeth (single-, double-, and triple-surface), glassionomer fillings, endodontic treatment (single-, double-, and triple-root), pulpectomy, full mouth scaling, simple tooth extraction, complicated tooth extraction, simple odontodectomy, complicated odontodectomy.
本研究以牙医十八项医疗项目为对象，资料来自中华民国牙医全联会所提供之健保申报资料档，共包含银粉填充、前牙复合树脂、后牙复合树脂、玻璃离子体填充、恒牙根管治疗、乳牙根管治疗、牙结石清除、简单性拔牙、复杂性拔牙、单纯齿切除术、复杂齿切除术等十八项。
5. 31 teeth of 27 subjects with crown fracture were treated by reattachment with glassfiber posts and dual-cure composite cement after disposable root canal therapy and all cases were followed up for 2 years.
对外伤引起冠折的折断部分保存完整的31个恒前牙采用玻璃纤维桩及和流体双固化复合树脂进行一次性根管治疗后自体牙断冠再接，并进行2年的追踪观察。
6. The aims of this study were to determine the rules of bite force changes and some factors, including proximal contact, bone support level, crown to root ratio, occlusal relationship of anterior teeth and tooth wear of loosen teeth. For further studying of dynamic chewing forces, we developed a new system of PVDF-based, which could be used in natural teeth as well as dentures. The biological security, including thrill, cell toxicity, hypersusceptibility and hemolysis characteristics, were also examined. Then, we evaluated the chewing forces during three basal functional movements-tapping, biting and laterotrusion, using the new instrument.
为此，本研究通过临床调查，分析了牙齿松动后，最大〓力值的变化规律以及影响松动牙受力因素，包括牙槽骨吸收程度、冠根比、邻接关系、〓关系、牙齿磨耗程度等；采用PVDF压电薄膜作为传感元件，首次研制出适用于测量单个天然牙咀嚼力的测量系统，并对PVDF压电薄膜的刺激性、细胞毒性、致敏性、溶血性能作以初步评价；采用所研制的咀嚼力测量系统，分析了正常牙与松动牙在紧咬、叩齿、侧〓等功能运动中咀嚼力变化的规律。
7. Objective More and more residual roots and crowns are preserved following the enhancement of people`s self awareness of teeth and the development of root canal treatment, so the restoration of pulpless teeth defected seriously has been the important task of prosthetic clinicians.
研究目的随着人们对牙齿自我保护意识的增强及根管治疗技术的不断发展，越来越多的残根、残冠得以保存，使得大面积牙体缺损修复成为临床修复工作的一个重要内容。
8. MTA was an ideal material for management of pulpless permanent teeth with incomplete root formation.
临床观察MTA治疗根尖发育不全并无髓牙和穿孔延迟修补的效果，对前一类病例用MTA制备根尖屏障，在控制感染后，患者仅需来诊1～2次即可完成治疗，7例中有5例根尖暗影完全消失，2例明显缩小，取得了明显的效果。
9. teeth root
9. According to former reports, with the high stress from lateral pressure obstruction, the gutta pertscha become the primary cause of tooth root diastema of pulpless teeth.
据以往的文献报道，由于侧方加压充填时产生的高应力，侧方加压充填牙胶尖是造成无髓牙牙根纵裂的最主要原因。
10. 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。
11. The immunohistochemical location of noncollagenous protein, bone sialoprotein, osteopontin and osteocalcin at different stages following periradicular surgery was undertaken. The crystals formation on surfaces of MTA was evaluated when treated in different conditions without cells in vitro and in vivo. MTA was used to manage clinical problems, including perforations in roots or furcations, and pulpless permanent teeth with incomplete root formation. The study included the following three parts
本研究试图通过体内外研究探讨MTA表面牙骨质形成的机理，动物体内动态观察根尖周组织在用MTA倒充填后的组织反应和细胞外基质非胶原蛋白的表达，体外观察MTA在不同的环境下表面的形态及成分变化，和在体内环境下材料表面磷灰石层的形成，同时结合临床病例观察其临床治疗效果。
12. Lesions of teeth root tips and alveolar bone in dialysis can be detected by radiography.
慢性肾衰血透的病人，若出现牙齿松动和错位时，可以应用X线全口片和牙根尖片来评价牙根的损害程度。
13. teeth root的近义词
13. Methods: the experimental group of 80 dental Endocal calcium hydroxide paste inclose root canal sterilization; The control group of 80 teeth inclose formocresol.
实验组80牙用Endocal氢氧化钙糊剂封入根管内消毒；对照组80牙封入甲醛甲酚。
14. One-year-old son and nine months on June 6 this year, the two front teeth to fall, and a small摔掉an incisor and a half years, the root was still alive, and now this has been a long stability of the teeth can bite, but the other half has been a big complete break from the root, the small half of the teeth is also not breaking even in the root, then a very loose, now bear a little longer than the original more, but there are hand-or air-kissing shaken, not small摔掉half of this tooth is too much trouble to not break the root and affixed to the tooth root will be half Department gum caught in the middle, so this is some of the teeth or swollen gums, and the son is now biting things the right bite with the teeth, I heard that if the long-term use of chewing side of things can cause teeth to deviate face, I am very anxious that his son should be half-tooth pulled out then?
一岁零九个月的儿子于今年6月6日把两颗门牙给摔伤了，一颗门牙摔掉一小半，牙根还健在，现在这颗牙已长稳了可以咬东西，但另外一颗大半边已彻底从牙根处摔断，小半边没摔断的牙还连在牙根上，当时很松，现在比原来长得稍微紧些了，但是有手轻碰还是动摇的，小半边没摔掉的这颗牙比较麻烦，未摔断的牙根与粘在牙根处的半边牙将牙龈夹在中间，所以现在这颗牙的牙龈还是有些肿，儿子现在咬东西也用右边的牙咬，听说如果长期用一边牙咀嚼东西会造成面部偏歪，我很着急，儿子的这半颗牙要不要拔掉呢？
15. AIM:To evaluate the short period clinical responses after one-visit root canal filling and pulpectomy for infected permanent teeth.
目的 ：观察去髓术、根管治疗术一次法的近期临床反应。
16. Not bite things when a tooth root uncomfortable ah, buy some plastic teeth, what teeth stick it
咬东西是不是出牙时牙根不舒服啊，买些牙胶、磨牙棒什么的吧
17. Do not have root or root development and tooth mobility not obvious as early as Rumoi deciduous, in order to prevent the infant falling to the trachea, it should be removed after extraction in general does not affect the eruption of permanent teeth.
对于没有牙根或牙根发育不好且牙齿松动明显的早萌乳牙，为防止脱落到婴儿气管，应当拔除，拔除后一般不影响恒牙的萌出。
18. Local tetracycline dose not increase the cementum healing of replanted teeth after extended dry time, but can decrease the inflammatory resorption of root and is advantaged to increase the service life of teeth, and has certain clinical value.
四环素局部应用不能增加延期再植干燥牙的牙骨质愈合，但能减少其牙根炎症性吸收，有利于延长牙的使用寿命，具有一定的临床价值。
19. The most popular root canal filling materials for primary teeth are zinc oxide eugenol, iodoform paste, and calcium hydroxide. It is required that root canal filling materials should be biocompatible with the periapical tissue.
作为根管充填材料必须具有生物相容性，临床上常用之乳牙根管充填材料为含有氧化锌丁香油酚、碘仿或是氢氧化钙之成分。
20. The root of our teeth 牙根 Let''s get to the root of the problem.
让我们抓住问题的根结。