摘要
目的研究不同粘结剂及老化处理方式对椅旁CAD/CAM全瓷材料Vita Enamic及Vitablocs MarkⅡ粘结强度的影响。方法将制备好的Vita Enamic(实验组)、Vitablocs MarkⅡ(对照组)试件随机分组(每组60个),分别应用三种常用树脂粘结材料(Panavia F、RelyX Veneer和RelyX Unicem)与离体牙(共计120颗)粘结,再随机分为冷热循环组和37℃水浴组进行老化处理。最后使用万能材料实验机测试每组粘结强度,并进行统计分析。结果①冷热循环组同种粘结剂与对应同种试件之间的粘结强度值较37℃水浴组低(P<0.05);②在37℃水浴及冷热循环条件下,三种粘结剂对于Vitablocs MarkⅡ及Vita Enamic的粘结强度均为Panavia F>RelyX Veneer>RelyX Unicem(P<0.05);③而三种粘结剂对Vitablocs MarkⅡ的粘结强度均高于Vita Enamic(P<0.05)。结论冷热循环老化试验可以降低三种粘结剂对两种瓷材料的粘结力。对于椅旁CAD/CAM全瓷材料,Panavia F可以获得更为理想的粘结强度。相较于Vita Enamic,Vitablocs MarkⅡ的粘结强度更高。
Objective To investigate the effects of different adhesives and aging treatments on the bonding strength of two kinds of CAD/CAM all-ceramic materials.Methods The prepared Vita Enamic(experimental group)and Vitablocs MarkⅡ(control group)specimens were randomly divided into groups(60 in each group),and three commonly used resin bonding materials(Panavia F,RelyX Veneer,and RelyX Unicem)were applied respectively.Body teeth(120 in total)were bonded,and they were randomly divided into a thermal-cold cycling group and a 37℃water bath group for aging treatment.Finally,a universal material testing machine was used to test the bonding strength of each group,and statistical analysis was performed.Results 1)The bonding strength between the same kind of adhesive and the corresponding test specimen in the thermal-cold cycling group was lower than that in the 37℃water bath group(P<0.05);2)Under both conditions of 37℃water bath and thermal-cold cycling,the bonding strength of each adhesive to Vitablocs MarkⅡand Vita Enamic was Panavia F>RelyX Veneer>RelyX Unicem(P<0.05);3)The bonding strength of all three adhesives to Vitablocs MarkⅡwas higher than Vita Enamic(P<0.05).Conclusion The thermal-cold cycling aging treatment can reduce the adhesion of three kinds of adhesives to two kinds of porcelain materials.Panavia F can obtain higher bonding strength for CAD/CAM all-ceramic materials.Compared to Vita Enamic,Vitablocs MarkⅡhas higher bonding strength.
作者
李娟
章非敏
胡建
LI Juan;ZHANG Feimin;HU Jian(Jiangsu Key Laboratory of Oral Diseases,Nanjing Medical University,Department of Prosthodontics,Affiliated Hospital of Stomatology,Nanjing Medical University,Nanjing 210029,China)
出处
《口腔医学》
CAS
2020年第9期792-795,共4页
Stomatology
基金
国家重点研发计划(2016YFA0201704)
江苏省高校优势学科建设工程资助项目(2018-87)。
