埋伏

The battlefield, which is again divided into the ambush , the engagement at Cockcrow Hill and the battle of Mount Jiuli

2战斗场面，次序为：⑥埋伏、⑦鸡鸣山小战、⑧九里山大战我真的不希望在他前进的途中有潜伏的蛇袭击他。他们怀疑有埋伏。

objective: to evaluate the clinical application of helical ct for the location or treatment of maxilla embedded tooth in the dental orthopaedics.method: 18 cases with embedded tooth of maxilla were made with clinical examination, dentomaxillary pantomography, submaxilla lateral projection and helical ct.the operation be done for supernumerary tooth,distorted teeth,inverted tooth.three embedded tooth of non-inverted tooth were done by orthopaedics.result: among the 18 embedded tooth ,there were 11 palatally and 6 labially presented teeth,1 the 18 patients is mediately with completely inverted supernumerary tooth.all preoperative assessment are one and all in operative or orthopaedics and primary wound healing.

四川大学华西口腔医学院正畸科，四川成都 610041摘要：目的：正畸治疗中对上颌埋伏牙如何定性，定位，并要对此是采取手术拔除［1］或者是正畸治疗进行探讨。方法：对18例（其中1例为2颗多生牙，1颗多生牙已长出，另一颗为完全倒置的多生牙），上颌前部埋伏牙采用临床检查以及拍摄全景片、头侧位片螺旋ct轴位和表面成像等检查［2～4］对埋伏的多生牙、畸形牙和倒置牙共15例采用了相应的手术进路拔除，对形态正常且不倒置的3颗埋伏牙采用了正畸治疗。

Methods: 163 patients with 179 embedded supernumerary teeth were checked by digital pantomogram to illustrate the precise location and condition.

对在全景片或其他检查中发现的埋伏多生牙病例，行数字化断层片检查，以显示埋伏多生牙的阻生情况。

Once or twice he saw the flare of a match through the underbrush where some of the men were lying in wait .

有一二次他看到矮树丛中火柴一亮，那里埋伏几个人。被隐蔽埋伏的警察捕获。

According to the principle of seismic refraction method, the formulas o f the depth and the thickness of the high-speed masses of rock are established using seismic refraction wave reversed and unrepressed time-distance curve and seismic refraction wave raypath theory in this paper.

根据浅层折射波方法原理利用浅层折射波相遇时距曲线与折射波射线路径关系建立了求取浅层高速埋伏岩体的埋深及其厚度的计算模式，利用这些公式可以较准确地确定高速埋伏岩体的位置、埋深及其厚度，对工程地质勘察是十分有利的。

Methods Nineteen bone impacted and unerupted teeth in 18 cases selected by orthopantomograph were scanned by 3DX-CT with 1.0 mm slice thickness. Images obtained by 3DX-CT (horizontally, sagittally, coronally) were analyzed after multi-plane reconstruction and 3D reconstruction including the angle of the bone axis impacted and unerupted teeth; maximum radius of the coronal teeth; distances between the tooth and the cortical bone around; distances to the neighboring tooth roots and nerve forum canal; the thickness of the bone tissue, etc.

对经曲面断层片筛选出的18例19枚埋伏牙进行牙科三维CT检查，扫描层厚1.0mm，重建后进行图像三维断面显示（包括水平位，矢状位，冠状位），对牙位图像进行分析及测量（包括埋伏牙牙长轴的角度，牙根弯曲度，牙冠的最大径，与骨皮质的距离，与邻牙根、神经孔／管的距离；骨质的厚度、高度等）。

Results: The digital pantomogram clearly show the shape and anatomical position of unerupted teeth.

结果：埋伏多生牙患者163例，共计179颗牙，数字化断层片能清楚显示埋伏牙的形态、位置及与邻牙的关系。

The technique of SSD and MPR with Dual-slice spiral CT scanning may obtain the images which can satisfy clinical necessity. This 3-D images in combination with section may supply vast information about impacted teeth in maxilla clinically. It can be used as one exact examining instrument for treatment. maxilla unerupted teeth; spiral CT; 3-dimensional reconstruction

双排螺旋CT表面遮盖法和多平面重建技术能获得满足临床需要的三维图像和多平面重建图像，联合断面图像可为临床提供上颌埋伏牙的大量信息，可作为埋伏牙治疗进一步的精确检查手段。

Results The accurate position of bone impacted and unerupted teeth in the complex maxilla or mandible anatomy structure were clearly reflected by 3DX-CT scan and 3D reconstruction. Nineteen impacted and unerupted teeth got anticipate effects by formulating different treatments according to 3DX-CT imaging data.

结果 牙科三维CT能清晰显示埋伏牙的形态、大小、位置、长轴角度、与邻牙的结构关系等。19枚埋伏牙依据牙科三维CT扫描提供的影像学信息制定不同的治疗计划，均取得了预期的临床效果。

Methods 50 cases of embedded teeth diagnosed by panoramic tomographs or apical films were projected by longitudinal imaging program 21~23. The definite location of those embedded teeth were analyzed and compared with the findings of the extraction surgery.

选取50例经曲面断层片或根尖片诊断为埋伏牙的患者，应用程序P21~23投照，分析埋伏牙的准确位置，并与埋伏牙拔除术中所见对比。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。