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injury of alveolar bone 牙槽骨损伤
Objective:To observe the effects of fibronectin on the proliferation and differentiation of alveolar bone cells(ABCs). 目的 :观察纤维结合蛋白 (FN)对人牙槽骨细胞增殖与分化的影响。
The absorb rate of alveolar bone in telescope repair was much lower than that in clasp (P<0.01). 套入式可摘局部基牙的齿槽骨吸收率明显低于卡环式可摘局部义齿(P<0.;01)。
Objective To investigate the value of iliac crest bone graft in reconstruction of alveolar bone cleft. 目的探讨应用髂骨移植在齿槽裂修复中的价值。
Another noted finding is that the furcation of alveolar bone played a major role on the tooth mobility of first molar. 且牙根分叉处齿槽骨对第一大臼齿牙齿动摇度的影响扮演了一个重要的角色。
The density and the height of alveolar bone of each abutment was measured and analyzed statistically by using a dental radiographic analysis software. 运用牙科图像分析处理软件对每一基牙的根周骨高度和骨密度进行测量并进行统汁学分析。
Methods:Dual X-ray absorptiometry was used to measure the bone mineral density of alveolar bone in different age or sexual groups. 方法:采用双能X线吸收法测量不同年龄组的男性、女性的牙槽骨骨密度。
Conclusion This study suggested that endocrine factors may influence and regulate the repair and resorption of alveolar bone. 结论证实牙槽骨修复确受全身内分泌因素调控。
Providing the detailed character of alveolar bone picture and digital output form,the way of numerical analysis supplies a new diagnosis method of periodontitis. 数字化分析能提供牙槽骨图象的细部特征描述和定量表达的形式,将为牙周病提供一种新的诊断方法。
Methods dual energy X-ray absorptiometry was used to measure the bone mineral density of alveolar bone between periodontitis patients and other patients. 方法采用双能X线吸收法测量不同原因拔牙后牙槽骨骨密度及腰椎椎体骨密度。
Under the same loading,the casting clasp was made the largest stress distribution on the cervical tissue of abutment, but on the supporting tissue of alveolar bone,the elastic clasp was made the largest stress. 在相同加载条件下 ,铸造卡环对牙颈部牙周组织产生的应力最大 ,隐形义齿对支承牙槽嵴产生的应力最大。
This study measured the width, gray scale of the bone_implant space and the height of alveolar bone in 100 implants inserted clinically on the digitalized radiographs by means of ARIES-II image analysis system. 采用ARIES-II图象分析系统 ,对100枚已植入颌骨内的牙种植体X线片数字图象中的种植体周围间隙宽度值、间隙灰度值、牙槽骨高度值进行了计算机测量。
Methods:Dual X ray absorptiometry was used to measure the mineral density of alveolar bone after extraction of first or second molar in left mandible in the idividuals with different age in 22 males and 22 famales. 方法 :采用双能 X线吸收法测量不同年龄组的男性、女性拔牙后的牙槽骨骨密度。
England's attack has been weakened by the injury of certain key players. 英格兰队某些主力运动员受伤而使攻球削弱。
When absorption of alveolar bones around a single root abutment reached 20%,its stress was concentrated. 当一侧单根基牙牙槽骨吸收达20%25时,此基牙出现应力集中;
Results: X-ray diagnosis showed translucency of alveolar bone around some molars with vertical root fracture.Decrease of alveolar bone height or wedge shape absorption was found in diseased region. 结果:X线显示牙根纵裂的牙齿,个别根周出现牙槽骨破坏吸收性阴影,病变部位牙槽骨高度降低或呈楔形吸收,根管腔增宽或出现明显的根纵裂片移位,牙齿向病变方向倾斜。
Objective to observe osteogenic rate of alveolar bone on the tension side in orthodontic rapid tooth movement through distraction osteogenesis of the periodental ligament quantificationally. 目的观察牙周膜牵引成骨在正畸牙快速移动中牵引侧牙槽骨的成骨速度。
CONCLUSION:This study thus demonstrate a tissue engineering approach to the repair of alveolar bone defect,which may have clinical applications on craniofacial surgery and prosthodontics. 结论:应用陶瓷化骨加体外诱导的成骨样细胞复合体移植可修复大鼠自体的下颌骨缺损,为组织工程化骨在口腔颌面外科和口腔修复科领域的临床应用奠定了基础。
Results: During the research period, the heights of alveolar bones in the sick teeth increased to a certain extent without statistic significance. 结果：在所研究的时同内，患牙牙槽骨的骨高度有一定程度的增加，但无统计学意义；
Perforating injury of eye ball, any type of scleral repair. 眼球穿伤,巩膜任何方式切除及修复。