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六龄牙窝沟封闭预防龋齿浅析 总被引:1,自引:0,他引:1
六龄牙窝沟封闭预防龋齿浅析田红兵,周培秀世界卫生组织把龋齿列为仅次于心血管病和癌症的非传染性疾病。龋齿在儿童发展较快,不仅造成局部牙患,剧烈牙痛,还影响儿童的食欲、咀嚼、消化吸收和生长发育,导致全身疾病,影响身体健康。人类的第一恒磨牙是在乳牙牙弓之后... 相似文献
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从1985年第一次全国牙体牙髓病学术会至今已十年了[1-3],十年来我国口腔医学迅速发展,其中,牙作牙髓病学发展极为显著,基本上逐渐由口腔医学发展为牙医学中主要的、成熟的分支学科之一。目前,已发展为适合我国国情的,具有我国特色的重点学科。1对龋病的研究表明,变形链球菌是较为肯定的致龋菌。国内的研究显示出逐步深入的过程,较早进行的变链菌血清学分型的研究,为开展龋病病因学,流行病学等方面的研究创造条件,随着分子遗传学,单克隆抗体等技术的应用,对致龋细菌的研究,已达到较高的水平。采用分子生物学技术,从分子水平研… 相似文献
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蜂胶软胶囊对小鼠糖尿病预防作用的实验研究 总被引:2,自引:0,他引:2
目的探索蜂胶软胶囊对小鼠糖尿病的预防作用。方法以清洁级CD-1雄性小鼠120只为研究对象,采取分层随机区组方法分组,用不同剂量的蜂胶灌胃,用链脲佐菌素80 mg/kg腹腔注射造模,分别测定血糖和体重的变化,所得数据采用SPSS10.0软件包进行统计分析。结果实验组与对照组血糖和体重的组内差别和组间差别及各组间糖尿病罹患率的差别有高度统计学意义(P<0.01)。结论蜂胶软胶囊对小鼠糖尿病具有预防作用,可以作为临床研究的实验参考。 相似文献
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世界卫生组织(WHO)负责传染病的执行干事戴维·海曼于2003年4月16日,在瑞士宣布,经过全球科研人员的通力合作,终于正式确认冠状病毒的一个变种是引起非典型肺炎的病原体. 相似文献
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随着人们生活水平的提高,精细食品在儿童饮食中所占比例明显增加,导致儿童龋患率居高不下,严重影响着儿童身心健康发展.广州是饮水低氟地区,儿童的患龋率很高.为了达到保证儿童健康成长的目的,笔者采用美国"莱可丽"密蜂牌氟化泡沫,于2000~2002年连续3a对港区4~6岁儿童进行防龋治疗,每年2次.现将防龋效果分析如下. 相似文献
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牙科手机空转冲洗防回吸污染的时效性研究 总被引:2,自引:0,他引:2
目的探讨用手机空转冲洗的方法控制回吸污染、使牙科水道细菌水平降低,并分析冲洗时间与效应之间的关系。方法选择12只BienAir型手机和12只W&HTA.96型手机,分别为A组和B组,以临床去龋备洞和开髓为试验对象,在每只手机完成治疗操作后立即取水样1次,然后让手机空转喷水4min,期间每隔0.5min取水样1次,用R2A琼脂培养平板检测水样本中的菌落数,比较不同冲洗时间对应的菌落数。结果两种手机均在冲洗0.5min后使水道细菌水平降低幅度最大,BienAir型手机、W&H TA-96型手机分别在冲洗3min和2.5min时仍显示有效,但此后达效应“平台”,即延长冲洗时间也不能显著降低水道细菌水平。结论手机空转冲洗的方法能显著降低牙科水道细菌水平,不同类型手机空转冲洗后达到效应平台的时间可能不同。 相似文献
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Priyanshu Bhargava Debajit Mahanta Ashish Kaul Yoshiyuki Ishida Keiji Terao Renu Wadhwa Sunil C. Kaul 《Nutrients》2021,13(8)
Propolis is produced by honeybees from materials collected from plants they visit. It is a resinous material having mixtures of wax and bee enzymes. Propolis is also known as bee glue and used by bees as a building material in their hives, for blocking holes and cracks, repairing the combs and strengthening their thin borders. It has been extensively used since ancient times for different purposes in traditional human healthcare practices. The quality and composition of propolis depend on its geographic location, climatic zone and local flora. The New Zealand and Brazilian green propolis are the two main kinds that have been extensively studied in recent years. Their bioactive components have been found to possess a variety of therapeutic potentials. It was found that Brazilian green propolis improves the cognitive functions of mild cognitive impairments in patients living at high altitude and protects them from neurodegenerative damage through its antioxidant properties. It possesses artepillin C (ARC) as the key component, also known to possess anticancer potential. The New Zealand propolis contains caffeic acid phenethyl ester (CAPE) as the main bioactive with multiple therapeutic potentials. Our lab performed in vitro and in vivo assays on the extracts prepared from New Zealand and Brazilian propolis and their active ingredients. We provided experimental evidence that these extracts possess anticancer, antistress and hypoxia-modulating activities. Furthermore, their conjugation with γCD proved to be more effective. In the present review, we portray the experimental evidence showing that propolis has the potential to be a candidate drug for different ailments and improve the quality of life. 相似文献
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Propolis is a natural material that honey bees (Apis mellifera) produce from various botanical sources. The therapeutic activity of propolis, including antibacterial, antifungal, and anti-inflammatory effects, have been known since antiquity. Cancer is one of the major burdens of disease worldwide, therefore, numerous studies are being conducted to develop new chemotherapeutic agents and treatments for cancer. Propolis is a rich source of biologically active compounds, which affect numerous signaling pathways regulating crucial cellular processes. The results of the latest research show that propolis can inhibit proliferation, angiogenesis, and metastasis of cancer cells and stimulate apoptosis. Moreover, it may influence the tumor microenvironment and multidrug resistance of cancers. This review briefly summarizes the molecular mechanisms of anticancer activity of propolis and its compounds and highlights the potential benefits of propolis to reduce the side effects of chemotherapy and radiotherapy. 相似文献
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《Health marketing quarterly》2013,30(2):109-119
Abstract This study examines the marketing of dental care products through dental practitioners' offices. This paper reports the findings of an experimental study designed to explore the role of price and brand names on consumers' attitude and intention to purchase. The results reveal favorable attitudes and intentions to purchase dental care products through the dentist's office. 相似文献
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蜂胶(propolis)是蜜蜂从植物芽孢或树干破皮伤处采集来的树脂(树胶),并混入蜜蜂上颚腺的分泌物和蜂蜡、少量花粉等加工而成的一种具有芳香气味和黏性的胶状固体物质。蜂胶是蜜蜂用于维持整个群体健康的有效物质,一个五六万只的蜂群1年只能生产蜂胶100~150 g,被誉为"紫色黄金"。天然蜂胶的基本成分一般是树脂50%~55%,蜂蜡30%~40%,花粉5%~10%。主要活性成分有黄酮类化合物(槲皮素、芦丁、山奈黄素、白杨黄素、芹菜素、高良姜素、松属素等)、 相似文献