瑞典和中国固定局部义齿的临床评价。

Q Dentistry
Swedish dental journal Pub Date : 2011-01-01
Karin Ekblom, Jan-Ivan Smedberg, Lars-Erik Moberg
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引用次数: 0

摘要

本研究的目的是比较中国牙科实验室生产的固定局部义齿(FPDs)与瑞典牙科实验室生产的固定局部义齿的质量。2007年3月至2008年12月期间,21名患者安装了fpd。制作了单个冠和多达七个单元的假体。所有假牙,包括覆盖陶瓷的金和CoCr合金,一式两份:一份由中国的一名牙科技师制作,另一份由瑞典的一名牙科技师制作。对义齿的边缘完整性、解剖形态和颜色、近似接触和咬合接触以及调整所需的时间进行盲测。分析义齿的组成,记录使用的材料、框架重量、实验室的合规性和成本(材料和人工)。在边缘完整性、解剖形态、颜色、近似和咬合接触的质量或调整所需的时间方面没有差异。中国制造的桥梁框架更薄、更轻(p
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Clinical evaluation of fixed partial dentures made in Sweden and China.

The aim of this study was to compare the quality of fixed partial dentures (FPDs) made in a Chinese dental laboratory with corresponding FPDs made in Swedish dental laboratories. Twenty-one patients were fitted with FPDs between March 2007 and December 2008. Single crowns and prostheses of up to seven units were made. All dentures, gold and CoCr alloys covered with ceramic, were produced in duplicate: one by a dental technician in China and the other by a dental technician in Sweden. The dentures were blind-tested with regard to marginal integrity, anatomic form and color, approximal and occlusal contacts, and time taken for adjustments. The composition of dentures was analyzed, and the material used, framework weight, compliance of the laboratories, and costs (material and labour) were recorded. There was no difference in the quality of marginal integrity, anatomic form, color, approximal and occlusal contacts, or in the time taken for adjustments. The bridge frameworks made in China were thinner and lighter (p<0.01) than those made in Sweden. Three FPDs from China showed elastic deformation when tested clinically and were considered too thin for clinical use. In 11 out of 14 orders from the Chinese laboratory, the gold alloy specified was not delivered and the cobalt-chromium alloy contained small amounts (0.19%) of nickel.The prostheses with gold-alloy frameworks from China cost 47% of those from Sweden (p<0.01) and those with cobalt/chromium frameworks 44% (p<0.01). In conclusion, the quality of the FPDs made in Sweden and China was comparable, with the exception of the dimension of the Chinese bridges, which in some cases was considered too weak. The gold alloy ordered from the Chinese laboratory was often not the alloy delivered and the CoCr alloy contained small amounts of nickel. FPDs from China cost less than half the price of those from Sweden.

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来源期刊
Swedish dental journal
Swedish dental journal 医学-牙科与口腔外科
CiteScore
0.85
自引率
0.00%
发文量
0
审稿时长
>12 weeks
期刊介绍: Swedish Dental Journal is the scientific journal of the Swedish Dental Association and the Swedish Dental Society. It is published 4 times a year to promote practice, education and research within odontology. Manuscripts containing original research are accepted for consideraion if neither the article nor any part of its essential substance has been or will be published elsewhere. Reviews, Case Reports and Short Communications will also be considered for publication.
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