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- Most of which happened in mesiobuccal canal of maxillary molar and mesial canal of mandibular molar, accounting for 70.7%. 器械折斷于上磨牙近頰根管和下磨牙近中根管者居多,占70.;7%25。
- Deciduous caries were often examined on the 1st mandibular molar, the let maxillary incisor, and the 2nd mandibular molar. 在牙位上,患齲好發(fā)牙位前三位為下頜第一乳磨牙、上頜第一乳前牙、下頜第二乳磨牙。
- Clinical application of intermaxillary traction and fixed flat bite-plate could correct lingual inclination of mandibular molar effectively. 交互牽引結合固定平面導板是矯治下頜第一磨牙舌傾的有效方法。
- In 1927, at Chou-k'ou-tien, near Peking, a hominid lower molar of unusual pattern was discovered. 1927年,在北京附近的周口店發(fā)現一顆形狀異常的人類(lèi)下臼齒。
- Conclusion The effects of mandibular molar distalization produced by face-bow and lip bumper was positive ,without loss of anchorage. 結論 口外弓聯(lián)合唇擋推下磨牙遠移無(wú)口內支抗消耗,效果可靠。
- In 1927, at Chou-k'ou-tien, near Beijing, a hominid lower molar of unusual pattern was discovered. 1927年,在北京附近的周口店發(fā)現一顆形狀異常的人類(lèi)下臼齒。
- A tooth adapted for tearing apart flesh, especially one of the last upper premolar or first lower molar teeth in carnivorous mammals. 裂齒,食肉齒適合于撕裂肉的牙齒,尤指食肉哺乳動(dòng)物最后上前臼齒之一或第一個(gè)下臼齒
- RESULTS: Using the simple semi-fixed lingual arch can correct the malposition of mandibular molar s linguoclination or buccolination quickly and successfully. 結果:在矯治初期,應用簡(jiǎn)易半固定舌弓能快速成功地矯治下頜磨牙頰向或舌向傾斜錯位。
- RESULTS: Using the simple semi-fixed lingual arch can correct the malposition of mandibular molar's linguoclination or buccolination quickly and successfully. 結果:在矯治初期,應用簡(jiǎn)易半固定舌弓能快速成功地矯治下領(lǐng)磨牙頰向或舌向傾斜錯位。
- For upper &lower molars, round type beak. 大的下頜磨牙,寬喙,更大彈性。
- A tooth adapted for tearing apart flesh,especially one of the last upper premolar or first lower molar teeth in carnivorous mammals. 裂齒,食肉齒適合于撕裂肉的牙齒,尤指食肉哺乳動(dòng)物最后上前臼齒之一或第一個(gè)下臼齒
- Results High fluoride exposure in pregnant mic e could cause subameloblastic cysts in first lower molar of fetal mice.Programm ed cell death (PCD) ... 結果孕鼠高氟引起胎鼠牙胚分泌期造釉細胞下囊腔的形成,囊腔上方的造釉細胞發(fā)生了程序性細胞凋亡(PCD)。
- It was shown that the particles with small diameter and narrow distribution could be obtained at a low molar ratio of of KBH_(4) to CuS... 實(shí)驗表明,硼氫化鉀與硫酸銅的摩爾比較小更利于制備粒徑小、粒徑分布窄、團聚程度低的銅納米顆粒。
- Results:The frequencies of lateral canals were 39.4% and 36.7% in the mesiobuccal root (MBR) of maxillary molar's and in the mesial root(MR)of mandibular molar's separate roots,respectively. 結果:(1)分離根的上頜磨牙近中頰根側支根管的平均出現率為39.;4%25;下頜磨牙近中根側支根管平均出現率36
- Results:The frequencies of lateral canals were 39.4% and 36.7% in the mesiobuccal root (MBR) of maxillary molar s and in the mesial root(MR)of mandibular molar s separate roots,respectively. 4%25,下頜磨牙近中根側支根管平均出現率36。7%25,磨牙的近中頰根及近中根均出現較多的側支根管及管間側支。(2)約2/3的根尖孔位置不在根尖。
- RE is partly or completely attached to the distal root of mandibular molars. 遠舌根通常細短彎曲,它的出現增大了下頜第一磨牙根管治療的難度。
- The results showthat fly ash will reacte with Ca(OH) 2 and high Ca/Si ratio C-S-H gel produced by the hydration of clinker,and so that to produce the C-S-H gel with a lower molar ratio of CaO/SiO. And such C-S-H gel can bind more Na + and K + ions. 結果顯示 ,粉煤灰的摻入對ASR有較好的抑制效果。 粉煤灰主要是通過(guò)與Ca(OH)2 及水泥熟料水化生成的高Ca/Si比的C -S-H凝膠發(fā)生二次火山灰反應 ,生成大量低Ca/Si比的C -S-H凝膠 ,提高了對孔溶液中Na+ 和K+ 的吸收 ,從而起到抑制ASR的作用
- The critical micelle concentrations and aggregation numbers of sodium dodecyl sulfates(SDS) mixed with different low molar ratio of cetyltrimethylammonium bromide(CTAB) were tested by pyrene fluorescence probe method. 用芘(Py)熒光探針?lè )y定了添加少量十六烷基三甲基溴化胺(CTAB)后,十二烷基硫酸鈉(SDS)的臨界膠束濃度(CMC)和膠束聚集數(Nm)。
- Radix entomolaris(RE) is a supernumerary distolingual root of mandibular molars, mainly in mandibu-lar first molars. 遠舌根是位于下頜恒磨牙遠中舌側的一個(gè)部分或完全獨立的額外牙根,常見(jiàn)于下頜第一磨牙。
- In addition, the changes of width between second bicuspid and mandibular molars showed statistical significances. 下牙弓變化中,第二雙尖牙間和磨牙間寬度增加有顯著(zhù)性差異。