两种复合树脂与牙本质剪切粘接强度的比较
Comparison of the shear bond strength for two kinds of composite resins against dentin
潘悦萍 1李婷婷1
作者信息
- 1. 上海交通大学医学院附属第九人民医院牙体牙髓科,上海交通大学口腔医学院,国家口腔医学中心,国家口腔疾病临床医学研究中心,上海市口腔医学重点实验室,上海市口腔医学研究所,上海 200011
- 折叠
摘要
目的 在离体牙牙本质上涂布粘接剂后分别予以声波技术充填Sonicfill树脂及分层充填P60树脂,评估应用两种复合树脂与牙本质的剪切粘接强度.方法 选择因牙周病拔除的磨牙40颗,制成40个牙本质试件,随机分为2组.A组为Sonicfill树脂组,B组为P60树脂组.每组涂布粘接剂后,A组采用声波技术充填树脂,B组采用分层技术充填树脂.经过循环温度为5℃及55℃的冷热循环疲劳试验,每个循环为3 min,共循环500次后,测试2组的剪切粘接强度(Shear Bond Strength,SBS).结果 A组的SBS为(10.32±1.13)MPa,B组的SBS为(8.43±0.98)MPa,两者差别有统计学意义(P<0.05).结论 运用声波技术的Sonic-fill树脂充填体相比采用分层充填的P60树脂拥有更高的剪切粘接强度.因此,在修复过程中使用声波充填技术不亚于传统分层充填树脂,且临床操作时间更短.
Abstract
Objective After the adhesive was applied to the isolated teeth,the Sonicfill resin was filled with the sonic filling technique,and the P60 resin was filled with the layered filling technique respectively,and the shear adhesive strength of the two composite resins was evaluated to be applied to the dentin.Methods Forty mo-lars extracted for periodontal disease were prepared,and 40 dentin specimens were made and randomly divided into two groups.Group A was the Sonicfill group and Group B was the P60 group.After each group was coated with a bonding agent and then filled with the resin,the shear bond strength(SBS)of the two groups was tested after cold and heat cycling,of which each cycle was 3 minutes at 5℃and 55℃,for a total of 500 cycles.Result The difference between the SBS of group A(10.32±1.13 MPa)and group B(8.43±0.98 MPa)was statistically significant,and the SBS of group A was higher than that of group B(P<0.05).Conclusion Resin fillings with Sonicfill have a higher shear strength than those with P60 resin fillings.As a result,the use of Sonicfill during restorations results in improved bonding and shorter clinical handling times.
关键词
剪切粘接强度/复合树脂/声波技术充填Key words
Shear bond strength/Composite resin/Sonic filling technology引用本文复制引用
基金项目
上海交通大学医学院附属第九人民医院上海交通大学口腔医学院研究型学科基金(KQYJXK2020)
出版年
2024
NETL
NSTL
万方数据