牙骨

Objective: Stress levels of the surface of alveolar bone around bridge abutment of posterior fixed bridge were studied.

目的：研究下颌后牙固定桥基牙周围牙槽骨表面的应力状态。

The clinical effects of the 3 artificial bones for autotransplantation are similar,showing that the type of bones is not the main factor affecting the success rate of transplantation.

3种人工骨用于自体牙移植临床效果接近，骨粉种类不是影响自体牙移植成功率的主要因素。

Van Beek's activator appliance could restrict the growth of maxilla and stimulate the growth of mandible in horizontal direction and control jaws posteroinferior rotation , lower front teeth and elongate mandibular molar in vertical direction.

Beek功能矫正器能在水平方向产生抑制上颌骨生长，刺激下颌骨生长；在垂直方向控制上下颌骨后下旋转，压低上下前牙及伸长下磨牙的效果。

It showed that the matrix of cementum and bone can modulate the behavior of cultured cells.

牙骨质片组和骨片组均有ALP的表达，但牙骨质组较 SS。

BMSCs could form cementum-like and bone-like tissues on the surfaces of cementum and bone observed by light microscope.

牙骨质片组和骨片组培养上清液中均有OC的表达，但牙骨质组较弱。

MAIN OUTCOME MEASURES: Each specimen was stained with hematoxylin and eosin. The lengths of new cementum and the area of new alveolar bone were calculated.

主要观察指标：苏木精-伊红染色观察并测量牙周组织再生(新生牙骨质长度和新生牙槽骨面积的百分比)情况。

The First part: Three dimensional finite element stress analysis of periodontal ligaments of abutments with various bone level.

第一部分：不同牙槽骨高度的固定桥基牙牙周膜应力的三维有限元分析。

The BLB implant system is suitable for the defect of denture or the edentulous jaw in the clinics.

BLB种植体植入后骨整合形成良好，适合于常见的牙列缺损及牙列缺失的种植修复，是一种较理想的种植体。

Objective: The purpose of this study is to establish a periosteal distraction model on rabbit mandiblar ramus, to observe the formation of newly formed bone and its structure in each phase after distraction of periostea, to observe the changes of periostea after being secondary to distraction forces, to investigate the possibility of osteogenesis by periosteal distraction in oral and maxillofacial region, and to study the possibility of a new restoration method of clincal alveolar and other bony defect.

目的：本研究在兔下颌升支建立骨膜牵张成骨模型，观察牵张骨膜后，在骨膜下新骨的形成，以及新骨在各个阶段的结构，同时观察了骨膜受到牵张力后的改变，研究骨膜牵张在口腔颌面部成骨的可能，为牙槽骨缺损及其他口腔颌面部骨组织缺损探讨新的重建方法。

MAIN OUTCOME MEASURES:①At week 9, recovery of bone mass was recorded. Height of alveolar bone, density of bone trabecula and osseointegration were observed by X-ray film.

主要观察指标：①种植术后第9周时观察各组骨量的恢复情况、X射线片观察牙槽骨高度、骨小梁致密度及骨整合情况。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。