I have a root canal filling in one of my teeth. The tooth is changing color. Can anything be done about it?
我有一颗牙在牙根管里补过。现在这颗牙变了颜色，有什么办法可以解决？
This tooth has had a root canal filling. Do you remember when it was done X?
这颗牙齿的根管曾经补过。你记得什么时候补的吗？
Objective:To compare the apical sealing ability of different root canal filling means.
目的：比较不同根管充填方法对根尖孔的封闭能力。
CONCLUSION: The clindamycin loaded coral paste is an ideal as root canal filling material.
结论：载药珊瑚糊剂是一种较理想的根管充填材料。
The numbers of the teeth needed for treatment per hundred people were 289.81 for filling, 10.20 for root canal therapy, and 170.20 for desensitization treatment.
楔状缺损需充填和根管治疗的每百人待治疗牙数分别为289.81和10.20； 磨损需脱敏治疗的每百人待治疗牙数为170.20。
Conclusion CPC is a kind of good materials in the treatment of root canal filling.
结论：自固化磷酸钙是一种良好的根管充填材料。
Objective to explore an effective method for root canal filling and repairing perforation of pulp bottom.
目的寻求有效的充填根管及修复髓室底穿孔的材料。
Objective:To investigate the root canal sealing ability of the novel polyurethane liquid root canal filling material.
前言： 目的：了解新型聚氨酯类液体根充材料的根管密封性能。
Method Using two different root canal filling materials for deciduous teeth.
方法用两种根管充填材料对乳前牙进行根管治疗。
To study the effect of root canal filling after confirm the canal working length by using traditional method and endometer method, and to evaluate their veracity, advantages and disadvantages.
研究传统法和根测仪法确定根管工作长度后行根管充填的效果，评价两者的准确性和优缺点。
Sometimes a tooth with a root canal filling will change color.
牙根管补过的牙有时会变色。
Methods Apicoectomy was performed immediately after the permanent root canal filling.
方法对慢性根尖瘘管进行常规根充后，即刻行根尖切除术。
Digital periapical film can quick understand the root canal preparation, root canal length and root canal filling accurately, surpassing conventional periapical film.
数字化牙片可迅速、准确地了解根管预备、根管长度及根管充填情况，优于传统牙片。
Conclusion: the results suggested that the coral paste is a good material for root canal filling of primary teeth.
结论：珊瑚糊剂是一种较理想的乳牙根管充填材料。
Conclusion: Nano-zinc-oxide, hydroxyapatite and nanohydroxyapatite have favorable histocompatibility and excellent apical sealing ability, so they are suitable for root filling as root canal sealers.
结论：纳米氧化锌糊剂、羟磷灰石糊剂和纳米羟磷灰石糊剂具有良好的组织相容性和根尖封闭性，可以作为根管封闭剂用于根管充填。
This article reports 30 cases of root canal filling with calcium hydroxide and iodoform paste.
本文报道应用氢氧化钙蒸馏水糊剂作根管充填30例。
Root canal filling pastes for primary tooth have to meet more needs than paste for permanent tooth, such as being absorbed with root simultaneously and doing no harm to permanent tooth germ.
乳牙根充糊剂除需具有恒牙根充糊剂的特性外，还需具有充填后能与乳牙牙根同步吸收、对乳牙根尖周组织和恒牙牙胚无害等性质。
CONCLUSION The clindamycin loaded coral paste is an ideal front tooth root canal filling material.
结论珊瑚克林霉素糊剂是一种较理想的前牙根管充填材料。
Primary teeth; Root canal therapy; Root canal filling material.
乳牙；根管治疗；根管充填材料。
For the front teeth, if of tooth mass enough to keep, can consider not doing false teeth after root canal therapy done, simple filling.
对于前牙而言，若保留的齿质够多，做完根管治疗后可以考虑不做假牙，简单的填补即可。
Conclusion: Iodoformcalcium hydroxide paste is more suitable for root canal therapy as root canal filling materials in primary teeth.
结论：碘仿氢氧化钙糊剂更适合作为乳牙根管充填材料。
Objective To investigate the therapeutic effect of FR paste used for root canal filling of deciduous teeth.
目的探索适合乳牙根管充填的材料。方法用两种根管充填材料对乳前牙进行根管治疗。
Objective To evaluate the clinical effect on pulpal periapical diseases treated with compound hydroxyapatite root canal filling materials.
目的观察复方羟基磷灰石充填根管治疗牙髓病、根尖周病的临床疗效。
Polyurethane can be used as adhesive, resin for filling, root canal filling material, implant, orthodontic appliance, tissue engineering and so on in the field of dentistry.
聚氨酯在口腔医学领域中可用于粘接剂、充填用树脂、根管充填材料、种植体、正畸弓丝以及组织工程等多方面。
Results The average level of each group and the control patients completed the treatment time of root canal, root canal filling quality, satisfaction, there were significant differences(P <0.01).
结果观察组与对照级平均每例根管完成的治疗时间、根管充填质量、满意度比较差异均有统计学意义（P<0.01）。
The new root canal filling material showed no detected cytotoxic, genotoxic effect, potential of skin sensitization and topical irritation and has good biocompatibility.
本实验显示新型根管充填剂复方牡蛎粉无细胞毒性、无基因毒性、无皮肤致敏性以及局部刺激性，具有良好的生物相容性。
For teeth that cannot be treated with orthograde root canal therapy, or for which it has failed, retrograde root filling, which seals the root canal from the root apex, is a good alternative.
对于不能用矫正根管治疗或用次治疗失败的牙齿，根尖倒充填(其将根管从根尖密封)是个良好的替代方案。
Abstract: Objective: to explore the influence on micro leakage from root tip and tooth root's bending strength by different combinations of root canal preparation and filling technology.
摘要【摘要】目的探讨几种根管预备方法和充填技术组合对根尖微渗漏和牙根抗折强度的影响。
Aim: To evaluate the clinical effect on pulpal-periapical diseases treated with the compound hydroxyapatite and titanium point root canal filling materials.
目的：观察复方羟磷灰石钛尖根管充填料治疗牙髓尖周病的临床疗效。
Oral health instruction, fissure sealing, fluoridation, caries filling, space retainer, deciduous root canal treatment, functional appliance.
口腔保健教育，窝沟封闭，儿童龋齿预防和治疗，预防性矫治。
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