无牙

There are no changes in development directions of maxilla,mandible and SN before and after orthodontic treatment for bimaxillary protrusion抯 adolescents with four premolars extracted,but there are different in development rate,the development of mandible is the fastest, maxilla is slower, SN is the slowest.

可以认为青少年双颌前突患者拔牙矫治前后上颌骨、下颌骨及前颅底的生长方向在治疗前后无变化，但三者的生长速度不同，下颌骨生长最快，上颌骨较慢，前颅底的生长速度最慢。

There are no changes in development directions of maxilla,mandible and SN before and after orthodontic treatment for bimaxillary protrusion抯 adolescents with four premo－lars extracted,but there are different in development rate,the development of mandible is the fastest, maxilla is slower, SN is the slowest.

可以认为青少年双颌前突患者拔牙矫治前后上颌骨、下颌骨及前颅底的生长方向在治疗前后无变化，但三者的生长速度不同，下颌骨生长最快，上颌骨较慢，前颅底的生长速度最慢。

The oral condition of bimaxillary protrusion, open bite, and vertical stop loss were more common in suspect TMD patients than in non-TMD patients.

就口内情形而言，在两颔前突、开咬、后牙支持丧失等三项，怀疑患有TMD者之发生率，均略高於无TMD者。

The company now owns advanced equipment, lathes category has CNC, take pains, and take the knife machine, lathe, such as Longitudinal section of the table-type lathe; processing models have precision milling machine, coreless grinder, tapping, drilling, polishing and so on.

公司现已拥有先进的设备，车床类有CNC、走心机、走刀机、桌上车床等纵切式车床；加工机型有精密铣床、无芯磨床、攻牙、钻孔、抛光等设备。

Enterprise was founded in 2003, a total investment of 2,000,000 U.S. dollars, the introduction of sophisticated production equipment and measuring instruments: CNC CNC lathe, automatic lathe, coreless grinder, bench lathe, drilling machine, tapping machine, large-scale line bed manually line bed, cutting machines, rolling machines flower, vibration dry sand blasting equipment.

企业始建于2003年，总投资200万美元，引进先进精密的生产设备和测量仪器：CNC数控车床、自动车床、无芯研磨机、台式车床、钻床、攻牙机、大型行床、手动行床、切槽机、滚花机、振动烘干喷砂等设备。

Objective:To study the best method for slowing down the alveolar bones absorption and keeping the alveolar bones height of the full denture among the aged patients Methods:To observe the alveolar bones absorption under reserved and un-reserved fang s conditions respectively by comparing 79 cases of mantled full denture with 118 cases of ordinary full denture.

通过79例覆盖全口义齿与118例普通全口义齿的比较，观察在有无牙根保留的情况下，牙槽骨的吸收状况。

ConclusionThe orthodontic treatment mainly affects the position of upper and low teeth, and the nasolabial angle and soft tissue convexity.

青少年安氏Ⅱ~1类患者的正畸治疗主要引起前牙位置、软组织的变化，对骨骼结构无明显影响。

Results A followed up for 12 months, one was broken again and restored, the rest were good without gingival congestion and atrophy, with good prosthetic restoration function, no dental root fracture and apical paradentitis.

结果 本组22颗牙，随访12个月，1例发生再折断，再次修复，其余21颗牙龈无充血及萎缩，修复体功能良好，未出现根折及根尖周炎表现。

MTA was an ideal material for management of pulpless permanent teeth with incomplete root formation.

临床观察MTA治疗根尖发育不全并无髓牙和穿孔延迟修补的效果，对前一类病例用MTA制备根尖屏障，在控制感染后，患者仅需来诊1～2次即可完成治疗，7例中有5例根尖暗影完全消失，2例明显缩小，取得了明显的效果。

Secondly, attention should be paid whether or not broken quilted, jumper, the density of sub-corner teeth are reasonable.

其次，还应注意绗缝有无断线、跳线，边角牙子的密度是否合理。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。