Class Ⅲ furcation defects were created at the mandibular second pre-molars, first molars and second molars.

人工制備3只食蟹猴雙側(cè)下頜第二雙尖牙、第一磨牙和第二磨牙的慢性Ⅲ度根分叉病損嘿咻视频视频在线网站。

The longest time was 22 months.the shortest time was 12 months. Conclusion The extraction planing of missing the first molars in class Ⅰmalocclusion is different from routine extraction mode.This clinical study indicated that it should chose nimble planing and for decurtate treatment time,according to arch crowding, profile and existing of the third molars.

第一磨牙缺失的患者在I類錯(cuò)牙合畸形中的拔牙模式有別于常規(guī)伊人手机在线观看，要根據(jù)患者牙弓的擁擠程度，面型突度及有無(wú)第三磨牙等情況選擇治療計(jì)劃和有利于縮短療程的矯治方法欧美添逼视频。

The interdental distance between the mesial groove of the first molars and distal groove of the second molars was measured on the maxillary dental casts. The interdental distances at the end of experimental tooth movement and retention were calculated. The effectuality of retentive appliances was evaluated by comparing the tooth movement distances between the experimental side and control side.

在加力結(jié)束后和保持結(jié)束后即刻制取上頜石膏模型欧美图色第一页，測(cè)量所有模型的第一磨牙牙合面近中溝與第二磨牙牙合面遠(yuǎn)中溝的距離，計(jì)算加力結(jié)束后與保持結(jié)束后的距離，比較實(shí)驗(yàn)側(cè)與對(duì)照側(cè)的牙齒移動(dòng)距離美国一级网站，評(píng)價(jià)保持裝置的有效性久久99国产综合精合精品免费。

Upper molars showed low frequency of Carabelli cusps. Hypocone of upper second molars showed strong tendency of regression, but metacone had low regression tendency and a strong degree of compression.

上顎大臼齒部Carabelli cusp出現(xiàn)率極低，上顎第二大臼齒hypocone之退化傾向較強(qiáng)啊啊啊免费啪啪啪视频，metacone之退化情形較弱free欧美性婬妇XXXX，而壓扁程度較多。

The three maxillary molars at the experimental sides were moved as one unit mesially by a Sentalloy coil spring delivering a force of 10 cN over a long range of activation. The contra-lateral molars served as controls. At 1, 2, 4, 8, and 12 weeks groups of animals were killed for histological evaluation.

實(shí)驗(yàn)側(cè)的三顆磨牙用結(jié)扎絲頜粘接劑固為一個(gè)整體18禁黄网站禁片无码观看，在超彈性拉簧作用下（力值為0.1牛頓）向切牙側(cè)移動(dòng)亚洲色图图片专区。l， 2久热日韩视频免费无码观看网站， 4国产激情在线一区， 8和12周時(shí)給予大鼠過(guò)量麻醉劑，材料用于組織學(xué)研究日韩美欧精品人妻。

The subjects in the first group (n = 30) had complete normal dentitions including third molars; those in the second group (n =30) had impacted right and left third molars.

在曲面斷層片上分別測(cè)量上頜第一和第二磨牙與腭平面所成的角度91手机视频在线。

Methods sample consisted of 2 groups. The subjects in the first group (n = 30) had complete normal dentitions including third molars; those in the second group (n =30) had impacted right and left third molars.

樣本分為兩組，第一組的研究對(duì)象（n=30）具有完整的正常牙列中文字幕国产精品一区，包括上頜第三磨牙一区二区三区激情欧美亚洲日本。

Methods The sample consisted of 2 groups. The subjects in the first group (n = 30) had complete normal dentitions including third molars; those in the second group (n =30) had impacted right and left third molars.

研究樣本分為兩組，第一組的研究目的確定上頜第三磨牙萌出與第一磨牙和第二磨牙軸傾度的關(guān)系先锋影音最新AV看片资源。

Methods The sample consisted of 2 groups. The subjects in the first group (n = 30) had complete normal dentitions including third molars; those in the second group (n =30) had impacted right and left third molars.

研究樣本分為兩組特级太黄A片免费播放一欧美欧，第一組的研究對(duì)象（n=30）具有完整的正常牙列，包括上頜第三磨牙在线黄色AV观看。

The mean distance of CEJ-FEs at the buccal, mesial and distal furcations of maxillary molars were 3.42 ± 1.5mm, 3.55 ± 0.97mm, and 3.69 ± 0.98mm for the first molars, and 3.01 ± 1.04mm, 4.04 ± 1.58mm and 3.00 ± 1.14mm for the second molars.

上顎第二大臼齒的頰面18岁进入网站视频、近心面與遠(yuǎn)心面之平均根叉角度分別是91.56±11.72 ； 101.65±11.45 安卓官网番茄社区； 97.11±10.71A片黄片在线。下顎第二大臼齒的頰面與舌面平均根叉角度分別是93.32±11.51 ； 91.72±10.77一级a爱做片2。