Page 46 - 南京医科大学学报自然科学版

南京医科大学学报（自然科学版） 第43卷第10期
·1372 · Journal of Nanjing Medical University（Natural Sciences） 2023年10月

·基础研究·

不同粘接系统用于树脂陶瓷复合材料的体外实验研究

周 力，颜 越，章非敏 *
南京医科大学口腔疾病研究江苏省重点实验室，南京医科大学附属口腔医院修复科，江苏 南京 210029

［摘 要］ 目的：研究不同粘接系统及老化处理对树脂陶瓷复合材料与牙本质间粘接强度的影响。方法：本研究使用了一种
新型树脂陶瓷修复材料（Lava Ultimate，优韧瓷）。在实验的第一部分，将制备好的离体牙随机分为3组，按照两步法自酸蚀通
TM
用型粘接系统、全酸蚀粘接系统、一步法自酸蚀通用型粘接系统将优韧瓷块与离体牙的牙本质面粘接，使用微机控制电子万能
实验机测试每组粘接试件的静态断裂强度，并观察其断口形貌。实验第二部分则将以上3组粘接系统的剪切样本浸泡在3种
不同酸碱度的溶液（可乐、苏打水、人工唾液）中，30 d后比较各组剪切强度间差异。结果：对于树脂陶瓷复合材料优韧瓷，一步
法及两步法自酸蚀通用型粘接系统组的剪切强度皆优于全酸蚀粘接系统组，而一步法自酸蚀通用型粘接系统组与两步法自酸
蚀通用型粘接系统组的粘接性能差异无统计学意义。3种粘接系统在不同浸泡液中浸泡老化后剪切强度均下降，但差异无统
计学意义，浸泡液种类对剪切强度的影响也无统计学差异。结论：3种粘接系统对优韧瓷与牙体间的剪切强度均达到临床要
求，且酸碱老化处理不影响3种粘接系统的剪切强度。
［关键词］ 树脂陶瓷复合材料；粘接界面；人工老化；剪切强度
［中图分类号］ R783.1 ［文献标志码］ A ［文章编号］ 1007⁃4368（2023）10⁃1372⁃06
doi：10.7655/NYDXBNS20231006

In vitro experimental study of different bonding systems for resin ceramic composites

ZHOU Li，YAN Yue，ZHANG Feimin *
Jiangsu Key Laboratory of Oral Disease，Nanjing Medical University，Department of Prosthodontics，the Affiliated
Stomatological Hospital of Nanjing Medical University，Nanjing 210029，China

［Abstract］ Objective：To study the effects of different bonding systems and aging treatment on the bonding strength between resin
ceramic composites and dentin. Methods：A new hybrid ceramic restorative material（Lava TM Ultimate excellent toughness porcelain）
was used in the current study. In the first part of the experiment，the prepared isolated teeth were randomly divided into three groups：a
two⁃step self⁃etching universal adhesive system，a total acid etching adhesive system，and a one⁃step self⁃etching universal adhesive
system. The excellent toughness ceramic block was bonded to the isolated dentin surface. The static fracture strength of each group was
measured using a microcomputer controlled electronic universal experimental machine，and the fracture morphology was observed. In
the second part of the experiment，the shear specimens of the above⁃mentioned three adhesive systems were immersed in three different
solutions（cola，soda water and artificial saliva）for 30 days to compare the difference of shear strength among the groups. Results：The
shear strength values of the one⁃step and the two⁃step self⁃etching universal adhesive systems were both significantly higher than that of
the total acid etching adhesive system，while the difference in bonding performance between the one⁃step universal bonding system and
the two⁃step self etching universal bonding system was not statistically significant. The shear strength of the three bonding systems
decreased after acid and alkali immersion aging，but without significar differences. And there was no statistical difference in the
TM
influence of three different solutions on shear strength. Conclusion：The shear strength between Lava Ultimate and teeth of the three
adhesive systems meets clinical requirements，and acid and alkali aging treatment may not affect the shear strength of the three bonding
systems.
［Key words］ resin ceramic composite materials；bonding interface；artificial aging；shear strength
［J Nanjing Med Univ，2023，43（10）：1372⁃1377］

［基金项目］ 南京医科大学内涵建设专项口腔医学优势学科（JX10531804）
∗
通信作者（Corresponding author），E⁃mail：fmzhang@njmu.edu.cn