种植烤瓷冠与烤塑冠临床咬合磨耗研究

目的比较种植用烤塑冠和烤瓷冠修复在两年后的磨耗情况。方法在临床应用烤塑冠和烤瓷冠修复两年,用咬合纸的方法来测定义齿磨耗情况。结果种植烤塑冠修复组和种植烤瓷冠修复组磨耗没有统计学差异(p0.05)。结论用种植烤塑冠及烤瓷冠修复磨耗性能在临床上无显著差异。     

地塞米松灭滴灵糊剂治疗化学性尖周炎的疗效观察

对89颗经临床确诊为化学性尖周炎的下颌后磨牙,经手工根管预备后分别封入地灭糊剂(实验组)或碘仿糊剂(加服或不加服地塞米松片、灭滴灵片,对照组),观察并比较治疗效果。结果表明,实验组治疗有效率明显高于对照组(P<0.05),说明地灭糊剂能有效治疗化学性尖周炎。     

聚维酮碘作为超声龈下刮治根面平整冷却液的临床研究

目的观察用10%聚维酮碘(Povidone-iodine,PVP-)取代蒸馏水作为超声龈下刮治和根面平整的冷却液能否提高治疗效果。方法选择中度和重度牙周病患者10人共1 128个位点,随机分为两组,对照组用蒸馏水为冷却液进行45 min全口超声龈下刮治和根面平整术(SRP);实验组用10%PVP-为冷却液进行45 min全口超声SRP。基线后1个月和3个月复查临床指标,包括菌斑指数(PI)、探诊出血指数(BOP),牙周袋深度(PD)和临床附着水平(CAL)。结果基础治疗后两组各项指标均有明显改善(与治疗前比较P0.05),但2组之间比较未见明显差异(P0.05)。结论 10%的PVP-取代蒸馏水作为超声龈下刮治和根面平整的冷却液并不能提高治疗效果。     

A Contrast of Cultural Connotations between English and Chinese Color Terms

Color is perception of people to the objective world.In human language,there are great numbers of color terms recording color of the world.These color terms are often used in human language.Gradually,they are endowed with rich emotional elements and cultural connotations.In cross-cultural communication,different nations with different cultural backgrounds or people of the same nations with the same backgrounds but belonging to different social classes have different perceptions of various colors.The different perceptions of colors result in a series of associative meaning of color terms.This thesis intends to discuss color terms from the following five aspects.Firstly,it deals with the relationship between language and culture.Language and culture are connected with each other.So the understanding of a culture requires the understanding of the corresponding language and vice versa.Secondly,it aims at the contrast of cultural connotations of basic color terms in English and Chinese.Thirdly,it is devoted to a discussion of the possible reasons for the diversity of cultural connotations in the two languages.Fourthly,it focuses on the influences on the cross-cultural communication.