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Methods: The root canal with root canal orifice burs and helical drilling bits were prepared in advance. 方法：采用根管口台阶状车针与螺旋型根管钻组合起来扩大根管。
Methods:The root canal with root canal orifice burs and helical drilling bits were prepared in advance. 方法:采用根管口台阶状车针与螺旋型根管钻组合起来扩大根管。
Objective: To introduce a new prefabricated post-and-core system, a helical drilling bit and a prefabricated post-and-core consisting of a root canal orifice bur which was designed by the author. 摘要目的：介绍一种由螺旋型根管钻、行设计的根管口台阶状车针、成桩核组成的预成桩核系统。
second mesiobuccal root canal orifice 近颊第二根管
Identifying and treating the second mesiobuccal root canal in maxillary second molars is improved by modified access preparation and probing the fissure or groove between the mesiobuccal and palatal canal orifices. 改良髓腔入口和探查近中颊根根管口与腭根根管口之间发育沟或暗线的方法,有利于发现和治疗上颌第二磨牙近中颊根第二根管。
root canal orifice [医] 牙根管口, 齿根管口
Morphologic study of the root canal orifices in human mandibular primary molars 乳磨牙根管口部形态的增龄变化研究
The Root Canal Therapy of Maxillary Third Molar. 上颌第三磨牙的根管治疗。
Using five different ways to study the root canal orifices of the maxillary first permanent molar teeth 不同方法探查上颌第一恒磨牙根管口的研究
Effects of apical transportation on seal of root canal fillings. 根管偏移对充填材料封闭根管能力的影响。
Objective:To study the fear extent toward root canal therapy (RCT). 目的：了解患者对根管治疗有关方面的畏惧程度。
Objective: To raise the efficiency of one-visit root canal therapy. 目的:探讨提高根管治疗一次法成功率的方法。
Calcified root canal occurs often during root canal therapy. 根管钙化是临床进行根管治疗术时的多见现象。
Objective:To observe clinical effect of iodophor in root canal treatment. 目的:观察碘伏在临床根管治疗中的应用。
The dentist reamed out the debris in the course of the root canal treatment. 在进行根管处理过程中，这名牙医铰除了碎屑。
When dentist Richard Hansen goes after a cavity or cleans a root canal, his patients barely hear a thing. 当牙医理查德·汉森检查龋洞或清洗牙槽的时候，他的病人只会听到一点声音。
When dentist Richard Hansen goes after a cavity or cleans a root canal,his patients barely hear a thing. 当牙医理查德·汉森检查龋洞或清洗牙槽的时候，他的病人只会听到一点声音。
Objective: To observe the clinical effect of calcium hydroxide iodoform paste used in root canal disinfection on periapical abscess with sinuses. 摘要目的：观察氢氧化钙碘仿糊剂运用于有窦型慢性根尖周脓肿根管内封药消毒的临床效果。
Wadachi R,Suda H.Effect of calcium hydroxide on the dissolution of soft tissue on the root canal wall[J].J Endod,1998 ;24(5):326-30. 王谷;张成飞;林琼光.;氢氧化钙在根管内封药的应用[J]
Objective To evaluate the effect of different P H EDTA salts on removing root canal smear layers. 目的研究不同pH值的乙二胺四乙酸盐(EDTA)去除根管玷污层的效果。