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premolars相关的网络例句

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与 premolars 相关的网络例句 [注:此内容来源于网络,仅供参考]

AIM:To determine the frequency and degree of root canal curvature of human mandibular premolars in buccolingual directions.

目的:确定人下颌第一、二前磨牙的颊舌向根管弯曲程度和情况。

Objective To determine the frequency and degree of root canal curvature of human maxillary first premolars in buccolingual directions.

目的 确定人上颌第一前磨牙的颊舌向根管弯曲程度和情况。

For each subject, the buccolingual bone thickness was measured by postulating that the miniscrews would be inserted at 16 positions (10, 12, 14 and 16 mm above the median sagittal planes of the interradicular spaces between the first molars and the second premolars in the maxilla, and 30°, 45°, 60°, 90° from the cortical bone surface).

在重建后的锥形线束CT影像上测量上颌第二前磨牙与第一磨牙牙根间矢状面上距离参考平面10,12,14,16 mm的4个植入高度上,以与骨皮质表面成30°,45°,60°,90°的4个方向共16个部位的颊舌侧骨质厚度,计算各植入部位触及上颌窦的危险率,在骨厚度大于6 mm的植入部位模拟植入微螺钉种植体并测量其周围骨质密度。

Days after the extraction of the first premolars, the upper canines were subjected to coronally orthodontic extrusion movements.

后10天内提取的第一前磨牙,上尖牙受到冠正畸挤压运动。

Methods:7 cases of classⅡ,division 1 maloclusion were treated.Upper first premolar and lower second premolars were extracted in all cases.Lower first molars were mesially moved by means of segmental arch. Cephalometric analysis was used to evaluate the effects of the treatment.

应用片段弓技术对7例安氏Ⅱ类1分类患者,通过拔除上颌第一前磨牙及下颌第二前磨牙,使下颌第一磨牙较快地向近中移动,纠正磨牙Ⅱ类错牙合关系。

Methods One hundred and fifteen extracted maxillary first premolars were included in this study. Radiograph of teeth in mesiodistal direction was taken.

收集115颗离体的上颌第一前磨牙,拍近远中向的X线片,用Photoshop5.0软件分析根管,用Weine氏法测量根管的弯曲度,测量的角度大于 18°时,则认为根管存在明显的弯曲,根管的构型采用Vertucci分类法。

Methods 20 fresh extracted,same size in mesiodistal and height of cusp,1st up premolars were taken for this study.

磨除近远中邻面,使之近远中径为 4mm ,在颊牙尖釉质层下制备 4mm× 4mm× 3mm的洞型并随机分成两组。

Demineralisation of enamel on sound human premolars was produced by Streptococcus mutans using a sequential culture technique.

用连续培养变形链球菌的技术在37个离体双尖牙上产生釉质脱矿。

Methods: 60 freshly extracted , single-rooted premolars were randomly divided into two experimental groups (cinnamic aldehyde, gallnut decoction) and four control group (FC group, calcium hydroxide mixed with propylene glycol group, negative the control group and positive control group),.

标本牙去除牙冠部及根尖部,留取6mm长牙根,50颗牙建立粪肠球菌根管感染模型后,20颗牙根管内分别放置桂皮醛、五倍子水煎剂,另30颗感染根管放置FC、氢氧化钙丙二醇糊剂和生理盐水。

Perhaps that's because the premolars were doing all the hard work, he suggests.

他建议道,也许那是因为前磨牙做着所有艰辛的工作。

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