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陶瓷托槽

陶瓷托槽的相关文献在1995年到2022年内共计119篇,主要集中在口腔科学、基础医学、临床医学 等领域,其中期刊论文73篇、专利文献140642篇;相关期刊45种,包括北京口腔医学、国际口腔医学杂志、华西口腔医学杂志等; 陶瓷托槽的相关文献由217位作者贡献,包括杨力、王邦康、白玉兴等。

陶瓷托槽—发文量

期刊论文>

论文:73 占比:0.05%

专利文献>

论文:140642 占比:99.95%

总计:140715篇

陶瓷托槽—发文趋势图

陶瓷托槽

-研究学者

  • 杨力
  • 王邦康
  • 白玉兴
  • 封平平
  • 刘筱琳
  • 白丁
  • 仇玲玲
  • 孟菲
  • 陈旸
  • 司文捷
  • 期刊论文
  • 专利文献

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    • 周王峰; 陈贤明
    • 摘要: 目前的正畸产品托槽中,主要有金属注射托槽、透明陶瓷托槽(抗压强度>1500MPa,抗断裂强度300~450MPa)两种材料为主。关键技术包括:生物医用金属材料加工及表面处理技术,生物陶瓷材料制备技术,高温冶炼炉、高温雾化制粉设备、烧结炉、粉末注射成型机。随着正畸患者的日益增多,人们对美观托槽的追求越来越强烈,本文重点介绍如何实现良好机械性能且美观的复合材料托槽,为广大医生提供既美观又可靠的矫治器产品。
    • 仇玲玲; 杨力
    • 摘要: 目的:模拟临床初期排齐阶段,探讨不同托槽对托槽与弓丝间滑动阻力的影响.方法:复制存在拥挤的下颌前牙段模型,并粘贴不同的待测托槽(A、B、C、E四种陶瓷托槽和D金属托槽),研究在两种不同牙列不齐程度下不同类型的下颌前牙段陶瓷托槽与0.016英寸镍钛丝的滑动阻力.结果 与结论:牙列不齐程度越严重,托槽与弓丝间的滑动阻力越大.在牙列不齐程度较轻时,不同托槽与0.016英寸镍钛弓丝的滑动阻力的差异明显,而在牙列不齐程度较重时,托槽间的差异无统计学意义.
    • 孙立众; 王若帆; 王琳璇; 王琦; 马文强; 韩梅; 米方林
    • 摘要: 目的:对激光辅助陶瓷托槽去粘接后牙釉质及牙髓不良反应进行Meta分析.方法:计算机检索The Cochrane Library(2017年12期)、PubMed、CBM、CNKI、万方数据库,搜集激光辅助陶瓷托槽去粘接后牙齿表面粘接剂残余指数及牙髓温度变化的相关研究,检索年限均从建库至2017年12月.由两位研究者独立筛选文献,提取资料并评价纳入研究的偏倚风险后,采用Stata 12.0进行统计分析及Revman 5.3进行亚组分析.结果:激光辅助陶瓷托槽去粘接影响牙面粘接剂残余指数纳入7个研究,激光影响牙髓温度纳入6个研究.Meta分析结果显示:陶瓷托槽去粘接前使用激光进行照射与否对于去粘接后牙面粘接剂残余指数的大小无显著作用[MD=0.074,95%CI(-0.472~0.619),P=0.791];相反,激光照射可以显著提高牙髓温度[MD=3.69,95%CI(2.71~4.66),P=0.000],且合适的激光参数设定对牙髓无不可逆性的损伤.结论:激光应用于陶瓷托槽去粘接对于牙面上的粘接剂残余指数无明显影响,但会导致牙髓温度升高.%Objective To perform a Meta analysis for evaluating the adverse effects of laser-aided ceramic brackets debonding on enamel and dental pulp.Methods We searched The Cochrane Library(2017,No.12),PubMed,CBM,CNKI,WanFang Database from inception to December,2017 for collecting relative studies about the adhesive remnant index and pulp temperature after laser-aided ceramic brackets debonding.Two reviewers independently screened literatures,extracted data and assessed the risk of bias of included studies.Stata 12.0 was applied for statistical analysis and Revman5.3 for subgroup analysis.Results The effect of laser irradiation on adhesive remnant index was searched in 7 studies while pulp temperature in 6 studies.The results of Meta analysis revealed that the pooled-mean difference(MD)and 95% confidence interval(95%CI)for continuous variables of adhesive remnant index with or without being affected by laser before ceramic brackets debonding were[MD=0.074,95%CI(-0.472-0.619), P=0.791], and that laser irradiation significantly improved the pulp temperature [MD=3.69, 95% CI(2.71-4.66), P=0.000]. Moreover,the laser irradiation with appropriate parameters didn't cause any irreversible injuries to pulp.Conclusion The laser applied in ceramic brackets debonding has no significant effects on the adhesive remnant index but leads to an increase of pulp temperature.
    • 孙立众; 王琳璇; 王琦; 马文强; 韩梅; 米方林
    • 摘要: 目的:对激光辅助陶瓷托槽去粘接的效果进行Meta分析.方法:计算机检索The Cochrane Library(2017-10)、Pubmed、CBM、CNKI、万方数据库,搜集激光影响陶瓷托槽去粘接时剪切粘接强度及牙齿表面粘接剂残余指数的相关研究,检索年限均从建库至2017-10.由两位研究者独立筛选献,提取资料并评价纳入研究的偏倚风险后,采用Stata 12.0进行统计分析及Revman 5.3进行亚组分析.结果:激光影响陶瓷托槽去粘接剪切粘接强度纳入8个研究、激光影响陶瓷托槽去粘接后牙面粘接剂残余指数纳入7个研究.Meta分析结果显示:陶瓷托槽去粘接前使用激光进行照射与传统去粘接的方法相比,可以使剪切粘接强度显著降低[MD=-8.92,95%CI(-11.65,-6.20),P=0.000],对于去粘接后牙面粘接剂残余指数的大小无显著作用[MD=0.07,95%CI(-0.47,0.62),P=0.791].结论:激光在陶瓷托槽去粘接中可以降低陶瓷托槽的剪切粘接强度,但对去粘接后牙面上的粘接剂残余指数无明显的影响.
    • 范晓川; 陈莉; 黄晓峰
    • 摘要: Objective To evaluate an appropriate and efficient method for debracketing and adhesive clearance after orthodontic treatment .Methods Fifty-six human maxillary premolars , extracted for orthodontic purpose were bonded with metal or ceramic brackets .Two debracketing methods and three cleanup techniques were used for debonding process . The debracketing methods were compared by assessing adhesive remnant indexes ( ARIs) .Cleanup efficiency was assessed by recording operating times .Enamel surface was evaluated with scanning electron microscopy ( SEM ) and surface roughometry.Results The ARIs of debracketing were similar with debonding pliers and enamel chisel (P>0.05).The diamond bur +One-Gloss took the shortest operating time , followed by the Super-Snap disk , and the One-Gloss polisher . The surface roughness and SEM appearance treated by the One-Gloss polisher was the closest to the intact enamel surface followed by the Super-Snap disk and the diamond bur +One-Gloss.There was no difference between removing metal or ceramic brackets with the same method ( P >0.05 ).Conclusion Debonding pliers was safer than enamel chisel for removing brackets .One-Gloss polisher was most effective but lowest efficient .Super-Snap disks provided acceptable enamel surfaces and efficiency .The diamond bur was not suitable for removing remnant adhesive .The effect of removing different kinds of brackets with same method on enamel surface was similar .%目的 研究不同方法去除不同材质正畸托槽及残余粘接剂对釉质表面的影响,评价一种适宜高效的去粘接方法,为正畸临床工作提供指导.方法 取因正畸原因拔除的人上颌前磨牙56颗,分别粘接金属或陶瓷托槽,使用2种方法去除正畸托槽后再使用3种不同方法去除残余粘接剂并对牙面抛光.分别检测粘接剂残留指数(ARI),操作时间及牙面粗糙度指数,并使用扫描电镜观察釉质表面微观结构.结果 托槽去除钳及釉质凿组去除托槽后的ARI无显著性差异(P>0.05).金刚砂车针+矽粒子组去除粘接效率最高,Super-Snap抛光碟组次之,矽粒子组最低.矽粒子组处理后釉质表面形貌及粗糙度与天然釉质最接近,Super-Snap抛光碟组次之,金刚砂车针+矽粒子组最差.使用相同方法去除金属托槽和陶瓷托槽无显著性差异(P>0.05).结论 托槽去除钳较釉质凿去除托槽更安全,矽粒子去粘接效果最好但效率最低,Super-Snap抛光碟去粘接效果及效率均处可接受范围,金刚砂车针不适于去粘接.采用相同方法去除不同材质托槽及粘接剂对牙面的影响类似.
    • 吴建英; 田涛; 李晨军
    • 摘要: 正畸过程中,陶瓷托槽虽然美观但其槽沟产生的摩擦阻力问题不容忽视.其原因主要是托槽表面疏松多孔、粗糙度大.就材质而言,单晶氧化铝陶瓷托槽的摩擦系数大于多晶氧化铝陶瓷托槽,氧化锆陶瓷托槽的摩擦系数大于氧化铝陶瓷托槽或与之相等.为减小摩擦阻力,槽沟表面可涂具有低摩擦性能的金属或其他物质.一般情况下,摩擦阻力随着槽沟角度的增加而增大.常用弓丝中,β-钛弓丝、钛合金丝、镍钛弓丝显著大于不锈钢弓丝与陶瓷托槽之间的摩擦力.同等条件下,矩形弓丝与陶瓷托槽产生的摩擦力大于圆形弓丝与陶瓷托槽产生的摩擦力.自锁托槽系统显著降低了摩擦阻力水平,用非常规结扎法结扎的陶瓷托槽可减小单晶氧化铝陶瓷托槽的摩擦力.弓丝所处的口内外环境对陶瓷托槽槽沟产生摩擦力的影响不甚明显.将来可主要从改良槽沟与弓丝材质两方面着手以最大限度地减小摩擦阻力.
    • 王丽梅; 陈旸; 孟菲; 李金源
    • 摘要: 利用拟薄水铝石的凝胶作用,以浓 HNO3为引发剂,将 Al2 O3(1μm)粉末和含3% Y2 O3的 ZrO2(200 nm)粉末均匀填充在拟薄水铝石的溶胶双电层内,在一定温度和时间下胶凝固化并干燥成坯。将生坯通过不同的温度烧结后,制备出 ZTA 陶瓷正畸托槽材料。主要研究拟薄水铝石的胶体行为、不同固含量下生坯的性能以及 ZrO2对陶瓷晶粒结构和力学性能的影响。结果表明,经拟薄水铝石凝胶制备的陶瓷生坯具有一定抗弯强度(达4 MPa),可用于力学加工。在该制备方法中,ZrO2可更好地发挥增韧作用,增加陶瓷烧结后致密度,提高陶瓷托槽材料的抗弯强度。%Al2 O3 (1 μm)powder and ZrO2 (200 nm)contain 3% Y2 O3 powder evenly were filled in the electrical double layer by pseudo-boehmite gel method with HNO3 as a initiator.The green body was obtained after gelling and drying under special temperature and time.ZTA ceramic bracket material was formed through different sintering tem-perature.The colloidal behavior of boehmite,the mechanical properties of the green bodies with different solid content and the influence of ZrO2 on grain structure and mechanical properties of the ceramic materials were studied.The re-sults showed that the bending strength of green bodies was 4 MPa,which could be used in the mechanical processing. In this process,ZrO2 is a better toughening agent for the ceramics sample,which increased the density and the ben-ding strength of the sintered ceramic bracket materials.
    • 王丽梅; 陈旸; 孟菲; 李金源
    • 摘要: 陶瓷托槽具有独特的美学性能备受关注,但脆性大较易断裂,一定程度上限制了其临床的应用.可通过改变陶瓷制备工艺以及添加特殊成分来提高陶瓷托槽性能,其中氧化锆增韧氧化铝陶瓷ZTA(Zirconia Toughened Alumina)托槽的研究,大大地改进了传统陶瓷托槽材料的不足,有效提高陶瓷托槽的力学性能.本文主要介绍ZTA陶瓷托槽材料的研究现状,并对陶瓷托槽材料的成型工艺,ZrO2的增韧机理进行阐述.
    • 王建卫; 王宇; 车远倩; 朱博武; 曹宝成
    • 摘要: 背景:正畸固定矫治中牙釉质脱矿发生率较高,因此探寻一种降低正畸固定矫治中釉质脱矿率的有效方法是众多学者一直的努力。 目的:在陶瓷托槽表面制备不同厚度的TiO2-xNx薄膜,检测其抗菌性能。 方法:通过溶胶-凝胶浸渍法在陶瓷托槽表面制备不同厚度的TiO2-xNx薄膜,采用X射线衍射分析薄膜的晶体结构,扫描电子显微镜观察薄膜的表面形貌,多功能材料表面试验仪检测薄膜的附着力,使用比色仪评价镀膜前后陶瓷托槽的色泽变化。通过平板菌落计数法评估TiO2-xNx薄膜陶瓷托槽对白色念珠菌、变形链球菌的抗菌性能。 结果与结论:①TiO2-xNx薄膜为锐钛矿型,结构均匀致密,随着薄膜厚度的增加,X射线衍射峰表现为增强趋势;②厚度最高薄膜最终附着力为18.37 N,说明薄膜与托槽具有较好的附着力,可承受在口腔应用中所受到的摩擦;③镀膜后,厚度最高薄膜托槽的色泽均有所变化,但变化较小,不至于影响陶瓷托槽原有的美观特性;④TiO2-xNx薄膜陶瓷托槽对白色念珠菌、变形链球菌均有一定的抗菌性能,且随着薄膜厚度的增加抗菌性能逐渐增强,对变形链球菌的抗菌效果更明显;⑤结果表明,TiO2-xNx薄膜陶瓷托槽在不影响美观的同时,对常见口腔致龋菌和条件致病菌具有较高的抗菌作用,且与托槽具有较好的附着力。
    • 王建卫; 王宇; 车远倩; 朱博武; 曹宝成
    • 摘要: 背景:正畸固定矫治中牙釉质脱矿发生率较高,因此探寻一种降低正畸固定矫治中釉质脱矿率的有效方法是众多学者一直的努力。n  目的:在陶瓷托槽表面制备不同厚度的TiO2-xNx薄膜,检测其抗菌性能。n  方法:通过溶胶-凝胶浸渍法在陶瓷托槽表面制备不同厚度的TiO2-xNx薄膜,采用X射线衍射分析薄膜的晶体结构,扫描电子显微镜观察薄膜的表面形貌,多功能材料表面试验仪检测薄膜的附着力,使用比色仪评价镀膜前后陶瓷托槽的色泽变化。通过平板菌落计数法评估TiO2-xNx薄膜陶瓷托槽对白色念珠菌、变形链球菌的抗菌性能。n  结果与结论:①TiO2-xNx薄膜为锐钛矿型,结构均匀致密,随着薄膜厚度的增加,X射线衍射峰表现为增强趋势;②厚度最高薄膜最终附着力为18.37 N,说明薄膜与托槽具有较好的附着力,可承受在口腔应用中所受到的摩擦;③镀膜后,厚度最高薄膜托槽的色泽均有所变化,但变化较小,不至于影响陶瓷托槽原有的美观特性;④TiO2-xNx薄膜陶瓷托槽对白色念珠菌、变形链球菌均有一定的抗菌性能,且随着薄膜厚度的增加抗菌性能逐渐增强,对变形链球菌的抗菌效果更明显;⑤结果表明,TiO2-xNx薄膜陶瓷托槽在不影响美观的同时,对常见口腔致龋菌和条件致病菌具有较高的抗菌作用,且与托槽具有较好的附着力。%BACKGROUND:Enamel demineralization has been plaguing doctors and patients in the fixed orthodontic treatment, so we attempt to seek an effective method of reducingitsincidence. n OBJECTIVE:To prepare TiO2-xNx thin filmsat different thicknesses on the ceramic bracket surface by sol-gel method folowed by detection of antibiotic performance. n METHODS:TiO2-xNx thin films at different thicknesses were prepared on the ceramic bracket surface by sol-gel method. The crystal structure, surface morphology and attachment force of these thin films were analyzed by X-ray diffraction, scanning electron microscope and multi-function material surface tester, respectively. The color changes of ceramic brackets before and after coating were evaluated through German VITA Easyshade Advance 4.0 photoelectric color comparator. Antibiotic performance of the ceramic bracket coated with TiO2-xNx thin film forCandida albicansandStreptococcus mutanswas evaluated by the flat colony counting method. n RESULTS AND CONCLUSION:The prepared TiO2-xNx thin film was anatase type, which had uniform and compact structure, and its X-ray diffraction peaks were elevated with the increase of film thickness. The attachment force of the thickest film was 18.37 N, indicating the thin film has a good adhesion to the ceramic bracket and can withstand the friction in the oral cavity. The antibiotic performance of TiO2-xNx thin film forCandida albicansandStreptococcus mutanswas also enhanced as the thickness of the thin film tended to increase, while the color changes of the ceramic brackets coated with different thickness of TiO2-xNx thin films were not significant.To conclude, the ceramic bracket coated with TiO2-xNx film that does not affect the appearance has high antibacterial activity to common oral cariogenic bacteria and opportunistic pathogens, and the film can adhere wel to the bracket.
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