常用可摘局部义齿支架材料表面微生物粘附的实验研究

›› 2018, Vol. 38 ›› Issue (1): 19-22.

常用可摘局部义齿支架材料表面微生物粘附的实验研究

张雪¹,孙宇²,张兆钰¹,崔丹¹,喻望清³,焦二龙³,肖睿³

1. 哈尔滨医科大学附属第一医院口腔医学院
2. 哈尔滨医科大学
3. 哈尔滨医科大学口腔医院

收稿日期:2017-02-16 修回日期:2017-03-01 出版日期:2018-01-28 发布日期:2018-01-31
通讯作者: 张雪 E-mail:616622592@qq.com

Adhesion of microorganisms to the surface of removable partial denture metal materials in vitro

Received:2017-02-16 Revised:2017-03-01 Online:2018-01-28 Published:2018-01-31
Contact: Xue ZHANG E-mail:616622592@qq.com

摘要/Abstract

摘要： ［摘要］目的研究变异链球菌和白色念珠菌对3种口腔常用金属材料的粘附性，为临床选择合适的材料提供理论依据。方法选取最常用做可摘局部义齿支架材料的3种金属——钴铬合金、Vitallium 2000材料、纯钛，分别制成尺寸为20 mm×10 mm×2 mm的试件，每组各6个。将各组试件抛光，并保证各组间粗糙度无明显差异。选取变异链球菌和白色念珠菌作为实验菌株，制成菌悬液，分别放入试件进行48 h的粘附实验，取出试件后冲洗、震荡、培养，采用菌落形成计数法(CFU)测定微生物表面粘附量。结果粘附48 h后，试件表面变异链球菌和白色念珠菌的粘附数量均为钴铬合金>纯钛>Vitallium 2000材料 (P＜0.05)。结论 Vitallium 2000材料与钴铬合金和纯钛相比，粘附微生物的数量最少，值得应用推广。

关键词: [关键词] 微生物粘附, Vitallium 2000, 活动义齿, 材料

Abstract: Objective To compare the adhesion ability of microorganisms to three different metal materials.Streptococcus mutans and Candida albicans were used in adhesion experiment in order to provide theoretical guidance for choosing the suitable clinical materials. Methods Three types of removable partial denture metal materials were selected, including Co-Cr alloy, Vitallium 2000 and pure titanium. 20 mm×10 mm×2.0 mm specimens of these dental materials were prepared, six test pieces in each material. Polishing was made to ensure that there was no obvious difference. Streptococcus mutans and Candida albicans, as experimental strains, were placed on suspension over plate and taken in culture for 48 hours, the amount of bacteria adhering to the specimen surface was assayed by means of clone forming unit(CFU) method after being eluted, shaked, and cultured. Results After 48 hours, the sequence of the adhesive capacity of the oral microorganisms on the surface of specimens was: Co-Cr alloy＞pure titanium＞Vitallium 2000(P＜0.05). Conclusion Compared with Co-Cr alloy and pure titanium, Vitallium 2000 candecrease the adhesion of microorganisms, and it is worth promoting and applying.

Key words: [Key words] microorganisms adhesion, Vitallium 2000, removable denture, materials

中图分类号:

R783.1

张雪孙宇张兆钰崔丹喻望清焦二龙肖睿. 常用可摘局部义齿支架材料表面微生物粘附的实验研究[J]. , 2018, 38(1): 19-22.

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