摘要
目的探究紫外线和低温等离子体照射对义齿基托与硬衬之间黏接强度的影响。方法制作36片义齿热凝试样,随机分为对照组、紫外线组和等离子组,每组12片。对照组采用黏合剂处理,紫外线组采用紫外线照射+黏合剂处理,等离子组采用等离子体照射+黏合剂处理;将各组义齿试样和硬衬黏接后固定于电子力学机的夹具上,施加0.5mm/min的剪切速度,测试并比较各组黏接强度。结果紫外线组和等离子组黏接强度显著高于对照组,差异有统计学意义(P<0.05);紫外线组与等离子组黏接强度差异无统计学意义(P>0.05)。结论表面处理可显著提高义齿与硬衬的黏接强度。紫外线照射和低温等离子体照射在经过表面处理后,其基托与硬衬之间的黏接强度显著高于单纯黏接剂。常规采用紫外线或低温等离子照射的方法处理材料表面,可提高义齿功能,延长义齿使用寿命,减轻患者的经济负担。
Objective To explore the effect of ultraviolet and low temperature plasma irradiation on the bond strength between denture base and hard relining material.Methods Thirty-six denture thermal coagulation samples were made and randomly divided into control group, ultraviolet group and plasma group, 12 in each group. These three groups were treated with adhesive, ultraviolet radiation ＋ adhesive, plasma irradiation ＋ adhesive, respectively. Each set of dental prosthesis samples and the hard lining were adhered and fixed on a fixture of an electromechanical machine. A shear rate of 0.5 mm/min was applied. The bond strength of each group was tested and compared.Results The adhesion strength between ultraviolet group and plasma group was significantly higher than that of control group（ P 〈 0.05）. There was no significant difference in the adhesion strength between ultraviolet group and plasma group（ P 〉 0.05）.Conclusion Surface treatment can significantly increase the bonding strength between dentures and hard linings. After ultraviolet irradiation and low-temperature plasma irradiation, the adhesive strength between the base and the hard lining was significantly higher than that of a simple adhesive after surface treatment. Conventionally, ultraviolet or low-temperature plasma irradiation was used to treat the surface of the material, which can improve the function of dentures, extend the service life of dentures, and reduce the economic burden on patients.
作者
张鹏飞
许云海
梁敏英
胡连芳
郭涛
杨婷
ZHANG Peng-fei;XU Yun-hai;LIANG Min-ying;HU Lian-fang;GUO Tao;YANG Ting(Department of Stomatology,Hebei Chest Hospital,Shijiazhuang 050041,China)
出处
《河北医科大学学报》
CAS
2018年第6期691-694,共4页
Journal of Hebei Medical University
基金
河北省医学科学研究重点课题(ZD20140389)
关键词
义齿衬底
紫外线
等离子气体
denture rebasing
ultraviolet rays
plasma gases
