上颌骨后的

In clinic, orthognathic surgery such as LeFort Ⅰ osteotomy is a regular means to treat maxillary hypoplasia and severe midfacial discrepancy.

临床上，对严重骨性上颌后缩和唇腭裂引起的面中份发育不足，常采用外科正畸手段，即LeFort I型截骨前徙术进行治疗。

All the patients with 8-11 mm height of residual bone in the posterior maxilla underwent sinus floor elevation and implant placement using osteotome without any bone grafts simultaneously.

患者均因上颌后牙种植区牙槽嵴顶至上颌窦底之间的剩余骨高度在8～11mm，无法植入足够长度的种植体，因而采用上颌窦底冲压法局部提升上颌窦底骨板及黏骨膜，提升幅度为2～5mm。

Methods: Three-dimensional finite element was adopted to compare stress and displacement on osteotome-bone interface at the different shapes of top osteotomes top at osteotome sinus floor elevation.

Summers提出的"骨挤压上颌窦提升术"(osteo-tome sinus floor elevation，OSFE)，由于手术创伤小，术后反应轻，患者易于接受，已逐渐地被临床应用于上颌后牙缺失的种植体植入术中[1~5]。

RESULTS: After resection of the sequestrum, 6 cases were clinically cured, and the follow-up demonstrated satisfactory results of this therapy; 1 patient discharged without operation died 3 weeks after leaving the hospital.

结果：7例患者中，6例经过手术切除坏死的上颌骨，临床治愈，获得满意的疗效；1例拒绝手术，自动出院，3周后死亡。

B Osseous - this relates to avoiding the excessive over-expansion of arches against the cortical plates (which ultimately leads to relapse) and the management of sutural relapse after maxillary expansion.

骨-这涉及到避免过度过度扩张的拱门对皮质板和管理上颌缝扩张后复发。

Methods This study selects 17 bimaxillary protrusion's adolescents and contrast 8 hard-tissue controls before and after orthodontic treatment with Paired t Test to evaluate the changes in maxilla, mandible and SN.

对17名青少年双颌前突患者拔牙矫治前后的8项硬组织指标进行对比，通过配对t检验来评价治疗后患者上颌骨、下颌骨及前颅底的生长变化。

Methods This study selects 17 bimaxillary protrusions adolescents and contrast 8 hard-tissue controls before and after orthodontic treatment with Paired t Test to evaluate the changes in maxilla, mandible and SN.

对17名青少年双颌前突患者拔牙矫治前后的8项硬组织指标进行对比，通过配对t检验来评价治疗后患者上颌骨、下颌骨及前颅底的生长变化。

Its mechanism is downward and backward rotation of the mandible, the retrusion of the lower incisors, the protrusion of the upper incisors and the forward growth of maxilla.

FR-Ⅲ是矫治替牙期前牙反的理想方法之一，其机理是下颌骨向下、向后旋转，舌倾下切牙，唇倾上前牙，促进上颌骨向前生长。

AIM: To discuss the operative opportunity and surgical approach on patient with eyeball atrophy and complicated fracture of orbital maxillary zygomatic caused by severe eyeball rupture to solve eyesocked depression, face abnormality or restriction on opening of mouth on wounded side and trismus and so on caused by above reason.

目的：探讨重度眼球破裂伤后眼球萎缩合并眼眶—上颌骨—颧骨（orbital maxillary zygomatic OMZ）骨折手术时机及手术方式，解决由于上述原因所致的眼窝凹陷，伤侧面部畸形，开口受限等。

Methods: Three-dimensional finite element was adopted to compare stress and displacement on osteotome-bone interface at the different shapes of top osteotomes top at osteotome sinus floor elevation.

Summers提出的&骨挤压上颌窦提升术&(osteo-tome sinus floor elevation，OSFE)，由于手术创伤小，术后反应轻，患者易于接受，已逐渐地被临床应用于上颌后牙缺失的种植体植入术中[1~5]。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。