磨牙

Animals were divided into control group and 5 experimental groups. Each experimental group had 2 canines and the central of masseters and geniohyoid were dissected out in 5th, 10th day in distraction and 2nd, 4th, 8th week after distraction.

牵张器采用口内下颌骨牵张器，截骨部位在第三乳前磨牙与第一恒磨牙间且垂直于下颌骨下缘，牵张方向为前后向。

In the soft tissue measurements, the value of soft tissue facial angle and B'-Pos-FH in the first extraction group was less than those in the second extraction group significantly. After treatment all the patients had an increase in S-Ns-Pos angle, soft tissue facial angle, B'-Pos-FH and depth of mentolabial groove. At the same time, soft tissue convexity angle was diminished obviously. But the change was not significant between the two premolar extraction groups.

2在对软组织项目的测量中，治疗前第一前磨牙拔除组的软组织面角、颏沟倾角均小于第二前磨牙拔除组，治疗后2组均出现软组织面凸角减少，颏凸角、软组织面角、颏沟倾角、颏唇沟深度增加；但2组在各项测量项目的变化上无显著组间差别。

Objective To study the second molar transition mesially with Edgewise technique.

目的 研究第一磨牙拔除后用方丝弓技术近中平移上下颌第二磨牙的临床效果。

Conclution more mesially inclined maxillary molars are likely to be associated with third molar eruption.

第三磨牙萌出与上颌第一、第二磨牙较大的近中倾斜有关。

METHODS: Sixty-nine extracted mandibular first premolars and 93 mandibular second premolars were used.Radiographs of teeth in mesiodistal direction were taken.

离体第一前磨牙69个，第二前磨牙93个，摄近中远中向的X线片，用Photoshop5.0软件分析根管，用Weine氏法测量根管的弯曲度，测量角度大于18度时，则认为根管存在明显的弯曲，根管的构型采用Vertucci分类法。

Results:When wide-diameter implant or two-implant were used to replace single mandibular molar, the stress of implant-bone interface was much lower than that of standard-diameter implant restoration. Comparison between wide-diameter implant and two-implant replacement showed that the former created lower stress. The difference was more obvious under oblique loads.

结果：与单个标准直径种植体修复相比，采用单个大直径种植体或双种植体修复单个缺失下颌磨牙均可使种植体-骨界面应力值大大降低；而采用单个大直径种植体修复单个缺失磨牙时骨界面应力值相对较小，以斜向加载时更为明显。

Issued a "creak" sound of the molars, which is medically known as "bruxism."

很多儿童睡眠时发出&咯吱咯吱&的磨牙声，这在医学上称之为&磨牙症&。

Objective To monitor the bite of bruxism behaviors with an automized occlusal splint-piezoelectricity sensor device.

目的 测试自行研发的垫－压电传感器装置对力的再现，为该装置记录磨牙症磨牙运动时产生的咬合力提供依据。

The stabilization splint is effective for treating sleep bruxism in short term,but can not affect the sleep structure and the incidence of micro-arousal.

稳定牙合垫对夜磨牙患者的牙齿磨动有所改善，但对于睡眠结构和睡眠微觉醒的发生无影响。

Many kinds of treatment for bruxism have been tried as well, with widely varying rates of success, including dental appliances that keep the teeth apart; various kinds of psychotherapy and behavioral therapy; drugs; and even nutritional supplements, on the theory that a mineral or vitamin deficiency may be responsible.

对磨牙症的许多种治疗方法也已经被尝试过，成功的几率相差很大，包括让牙齿分开的牙科器械；各种各样的心理疗法和行为疗法；药物；基于矿物质或维生素的缺乏也许和磨牙症有关的理论所进行的营养补充。

He and Nina moved to California and lived at 2005 Ivar Street, Apt.

他和Nina搬到加州，并在2005年伊瓦尔街，公寓生活。

Droperidol （ potently inhibits transfected HERGchannels and this is the probable mechanism for QT prolongation.

氟哌利多有效地抑制了转染的 HERG 钾通道，可能是 QT 间期延长的机制。