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Methods: 60 patients with isolated anterior teeth used zinc oxide paste and iodoform gutta-percha point for lateral condensation, then the experimental group had the root canal filling pressure into FRC pile nail, the control group would no longer be dealing with, two groups had apical dye leakage test.

选60例离体前牙,采用碘仿氧化锌糊剂及牙胶尖做侧压充填,然后实验组在已充填的根管内加压插入FRC桩,对照组不再做处理,对两组做根尖染色渗漏试验。

Stomatology doctors found that children 7-12 years old are deciduous, the turn of the permanent teeth, tooth development as well, upper and lower dental contact some teeth too sharp, uneven teeth and maxillofacial, and the resulting high or obstacles Night is caused by the teeth of the important reasons.

口腔科医生发现,儿童在7至12岁是乳牙、恒牙的交替过程,如牙齿发育不好,上下牙颌接触时有的牙尖过高,咬颌面不平,因此造成的高点或障碍点是引起夜磨牙的重要原因。

Methods ABC method was applied to detect ER and PR in 20 healthy persons (10 males and 10 females),as well as in 58 patients,of which 14 cases were dental pulp polypus,20 were apical cysts,and 24 were periapical granuloma.

应用ABC法对20颗健康牙髓作为对照组及14例牙髓息肉、20例根尖囊肿和24例根尖肉芽肿作为实验组做ER、PR检测。

Teeth of the total were revisited 2 years later and 2-year success rate were evaluated.Results The ratios of adequate filling, underfilling, and overfilling were 79.97%, 14.62% and 5.41%, receptively. Full canal RCT ratio of molar was 89.44%. Average RCT treatment period was 2.8 weeks. 2-year success rate of RCT was 94.39%.

下面就四川大学华西口腔医院牙体牙髓科 2 0 0 1~ 2 0 0 2年RCT的临床质量作一评价。1 材料和方法1.1 研究对象随机选择 2 0 0 1年 3月~ 2 0 0 2年 2月在四川大学华西口腔医院牙体牙髓科因牙髓病和根尖周病完成RCT治疗的 10 89例患者的 14 2 3颗患牙为研究对象。

The shape of the teeth is triangulum whose tip is the teeth cusp. The left and right teeth cusp oppose to each other forward to the pharyngeal cavity.

三角形牙齿的底部附着于腮弓上,三角形牙齿的尖即为牙尖,朝向内侧咽部,左右牙尖相对?

Motheds: to select 336 lomars with pulposis or apicitis from the aged and to devide them into two groups. in group the control group,the illed teeth were given only the root canal therapy. in group the experimental group, according to the difference of every root canal, the unobstructed root canals were treated by root canal therapy. while the obstructed ones were given the root canal resinifying, use two kinds of therapy method together to molais' pathological changes.then their curative effects were observed after two year.

选取336例中老年人患有不可复性牙髓炎、牙髓坏死、牙髓钙化、牙内吸收和急、慢性根尖周炎的患牙358颗,随机分为对照组和实验组,对对照组行常规根管治疗,对实验组则根据每个牙齿各根管的不同情况,采用根管-塑化联合治疗,观察2年进行临床评价。

objective the purpose of this study was to explore the method and effectiveness of apertognathia of anterior teeth in teenagers.methods the majority patients were corrected with edgewise appliance after draw four molars, all sorts of flexure were curved on the appliance, used perpendicular traction for anterior teeth and ii, iii maxillomandibular traction, fine adjust intercuspal position ,tip and cavity.

目的 探讨青少年前牙开牙合的矫治方法和效果。方法多数患者采取拔除4个磨牙之后使用方丝弓矫治器矫治,矫治中在弓丝上弯制各种曲,并使用前牙垂直牵引和颌间ⅱ类、ⅲ类牵引,精调牙位及尖窝关系。

RESULTS: VIP-immunoreactive nerve fibers were expressed from apical foramina to the central pulp as bunchy line,and became fan-shaped at the cervical line,more branches in the coronal pulp.Some branches surrounded blood vessels,some branches terminated in the pulp matrix,the others passed Raschkow nerve plexus and run forward the odontoblastic layer and the predentine,but not went into dentine.

结果:VIP阳性神经纤维自根尖孔呈束状进入牙髓,至颈部扇形分开,在冠髓大量分支,部分围绕在血管周围,部分终止于牙髓基质,部分参与形成成牙本质细胞层下Raschkow神经丛,然后发出分支伸入成牙本质细胞层和前期牙本质,但不进入成熟牙本质。

The slices were treated by immunohistochemistry reaction and the image analysis. RESULTS: VIP-immunoreactive nerve fibers were expressed from apical foramina to the central pulp as bunchy line,and became fan-shaped at the cervical line,more branches in the coronal pulp.Some branches surrounded blood vessels,some branches terminated in the pulp matrix,the others passed Raschkow nerve plexus and run forward the odontoblastic layer and the predentine,but not went into dentine.

结果:VIP阳性神经纤维自根尖孔呈束状进入牙髓,至颈部扇形分开,在冠髓大量分支,部分围绕在血管周围,部分终止于牙髓基质,部分参与形成成牙本质细胞层下Raschkow神经丛,然后发出分支伸入成牙本质细胞层和前期牙本质,但不进入成熟牙本质。

Methods 184patients(age18~60)with184infected permanent teeth were randomly divided into two groups.The experimental group was filled with the VITAPEX paste plus gutta percha.

在临床选择18~60岁的牙髓坏死、慢性根尖周炎病例184例,184颗患牙,随机分为两组,第一组采用VITAPEX糊剂加牙胶尖一次法根充治疗完成。

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