简易印模术对单个前牙烤瓷冠颈缘外观效果的作用观察

目的:观察和探讨两种印模技术对单个前牙烤瓷冠颈缘外观的改善效果。方法:40位患者用简易印模技术制取印模,制作93件镍铬合金烤瓷瓷冠,设为实验组,另35位患者以常规印模技术制取印模,制作71件镍铬合金烤瓷瓷冠,设为对照组。观察两组戴冠当时与两年后的颈缘适合性、颜色、牙龈形态与健康情况。结果:试验组有98%的合金瓷冠具有优良的边缘适合性,仅2件(2%)出现颈缘黑线,与对照组相比有显著差异(P<0.05)。结论:简易印模技术能更好的保证工作区模型的准确度,从而有效地改善了镍铬合金烤瓷冠颈缘的美观与龈组织的健康。     

河北磁县食管癌胃癌高发人群口腔真菌分布的调查

应用常规方法随机研究食管癌、胃癌高发的磁县人群５４７例的口腔真菌。结果：１．口腔真菌阳性率为６８．４％，食管真菌阳性率为４７．３％，前者显著高于后者（Ｐ＜０．００１）。２．口腔真菌以念珠菌、曲霉菌和青霉菌为主，食管真菌以曲霉菌、青霉菌和念珠菌占多数。３．口腔与食管内的产毒真菌差异无显著性意义（Ｐ＞０．０５）。本结果为进一步研究口腔真菌与上消化道癌及肿瘤的一级预防提供了依据。     

大学生个体印象管理对其社会网络质量的影响

目的:研究个体印象管理对其社会网络质量的影响。方法:选用社会网络调查法、大学生印象管理量表,对46名大学生进行调查。结果:印象管理建构的提高不利于朋友网和沟通网的强联系人数量的增加(β分别为-1.04和-1.33,P分别小于0.05和0.01;F值分别为4.19和6.45,P分别小于0.05和0.01),而印象管理动机对强联系人的数量并没有影响,并且印象管理动机和印象管理结构都不影响个体为中心网络的紧密性。结论:只有个体印象管理的建构部分不利于其社会网络中的强联系人数量的增加。其他部分对社会网络无明显影响。     

Vitamin A status of socio-economically backward children

A comprehensive survey was carried out to asses the Vitamin A status of pre-school (0–6 yrs.) and school age (6–12 yrs.) children of socio-economically backward families from slums of Bombay and its suburbs. The Vitamin A, protein, calories and iron from the rice and dal based diet was found to be below recommended dietary allowances (RDA). Among the 1956 children surveyed 20% of the children showed low (<20 μg/dl) serum vitamin A levels. 4.8% of the children were suffering from one or the other signs of Vitamin A deficiency. Rose Bengal stain test (RBST) and conjuctival impression cytology (CIC) indicted the signs of mild conjuctival xerosis and of early epithelial changes which were correlated with serum vitamin A levels. Serum iron, PCV, Hb and RBC levels were below normal. The anthropometric measurements of these children were below 50th percentile of Indian Council of Medical Research (ICMR) standards. Due to lack of proper nutrition, the overall growth of children is either retarded or not upto the standard levels as was noted in majority of the children.     

白内障超声乳化手术前后眼表的变化

目的：应用眼表综合分析仪联合结膜印记细胞学观察白内障超声乳化手术前后眼表参数的变化。

方法：选择2016-12/2017-12于福建省立医院眼科行白内障超声乳化和人工晶状体植入手术的患者39例39眼。观察和分析患者术前,术后1d,1wk,1、2mo的干眼症状评估OSDI量表。应用眼表综合分析仪(Keratograph5M)测量泪河高度、泪膜破裂时间、结膜充血以及进行结膜印迹细胞学检查。

结果：术前,术后1d,1wk,1、2mo的OSDI量表的评分：9.30±3.80、19.8±3.42、33.2±5.63、18.8±3.49、20.3±8.65分(P<0.05); 结膜杯状细胞密度分别是376.00±73.88、289±69.50、243.02±80.81、336.72±81.60、346.70±67.35个/mm²(P<0.05); 首次泪膜破裂时间分别是6.91±4.52、6.12±3.55、5.18±3.37、6.28±4.70、5.96±3.17s,平均泪膜破裂时间分别是10.21±5.20、8.89±4.47、6.87±3.68、7.35±3.52、9.00±4.23s,术后1wk的泪膜破裂时间与术前有差异(P<0.05)。

结论：白内障超声乳化手术破坏眼表,患者的泪膜稳定性和结膜细胞损害于术后1d开始,术后1wk加剧,术后2mo患者的眼表状态仍然无法完全恢复。     

浅谈医患有效沟通与和谐医患关系

探讨有效医患沟通的方式,建立医患之间相互信任、相互了解的关系,从而减少医疗纠纷的发生.探讨医患关系紧张原因,探索语言沟通的技巧.希望通过有效沟通,帮助病人了解、认识、配合医生的治疗.良好的医患沟通,有助于建立良好的医患关系,有利于开展高质量的医疗护理工作,全方位地为患者服务.     

添加＂正圆形标记＂后对印模形变规律的影响

目的 探索添加＂正圆形标记＂后对印模固有形变规律的影响.方法 按美国牙科协会ADA标准,制作两个金属母模,并在其中1个上安置6根横断面为正圆形的钢针.分别对两个金属母模制取印模,获得A、B两组印模样本.用测量显微镜观察、测量标记线,比较两组印模的形变程度及规律.所获数据采用SAS 6.12软件的成组t检验比较.结果 A、B两组印模的形变范围分别为,藻酸盐0.38%～0.58%和0.43%～0.66%;硅橡胶0.38%～0.42%和0.33%～0.49%,两组之间差异无统计学意义（P〉0.05）.结论 在口腔印模上添加正圆形标记点,不会影响印模本身固有的形变规律,该标记方法是可行的.     

硅橡胶印模材料在口腔修复中的应用

目的:探讨硅橡胶印模材料在烤瓷冠修复中的应用效果.方法:将我院2010 年6月至2011 年2月收治的60 例60 颗进行烤瓷冠修复的牙齿分别采用硅橡胶印模和藻酸盐印模,比较两组患者的印模的精确性和烤瓷冠的边缘适合性.结果:硅橡胶组的印模评价的优秀率为80.0% 显著高于藻酸盐组的60.0%,P<0.05.且硅橡胶组的烤瓷冠的边缘的密合率为96.7% 显著高于藻酸盐组的80.0%,P<0.05.结论:硅橡胶印模材料在烤瓷冠修复中的应用可提高印模的精确性和烤瓷冠边缘的密合度.     

一种新型数字化桩核修复技术

桩道信息获取不完整、数字化程度低等诸多缺陷限制了全数字化和半数字化桩核制造技术应用于临床.本文旨在介绍一种新型桩核数字印模采集技术,该技术利用计算机辅助设计和计算机辅助制造(computer-aided design/computer-aided manufacturing,CAD/CAM)来制作桩核,能生产出精度更高...     

Measuring Intraoral Pressure: Adaptation of a Dental Appliance Allows Measurement During Function

This article introduces a new way of recording intraoral pressures from a range of locations within the oral cavity. To measure pressure flow dynamics during swallowing, we fitted eight miniature pressure transducers capable of measuring absolute pressures to a chrome-cobalt palatal appliance with a labial bow. Unlike previous devices, our design provides a rigid, custom-fitted platform for the simultaneous recording of pressures at eight locations within the oral cavity during function. We placed an anterior pair of gauges to measure lingual and labial contact against the left central incisor tooth, and two pairs of gauges to measure pressure contributions of the lateral tongue margin and cheeks on the canine and first molar teeth. Finally, lingual pressure on the midline of the palate was measured by two gauges, one at the position of the premolars and one on the posterior boundary of the hard palate. We then recorded intraoral pressures in five adult volunteers seated in an upright position and asked to swallow 10 ml of water. Labial pressures on the canine rose rapidly from a resting level of 10 kPa to 33 kPa, while pressure profiles from the labial aspects of the incisor and first molar teeth followed a negative pattern, peaking at -12 kPa for the incisor and -15 kPa for the molar sensor. Pressure profiles recorded from the palatal aspects of the first molar and the canine appeared to be similar, but the former fell to -13 kPa before rising to 9 kPa, and the canine pressure rapidly increased to 22 kPa before returning to its resting level of 4 kPa. The pressure profile of the palatal aspect of the central incisor was strikingly different; at the start of the swallow, pressure dropped precipitously to -20 kPa, before slowly rising to 10 kPa. It then followed the general pattern of the other two sensors, before peaking again at 10 kPa and then returning to a resting level of 4 kPa. We also showed that there were significant negative pressures in the mouth during function, and that pressure profiles varied markedly between individuals.