口腔医学研究

口腔医学研究 ›› 2025, Vol. 41 ›› Issue (1): 60-63.DOI: 10.13701/j.cnki.kqyxyj.2025.01.012

• 口腔材料学研究 • 上一篇    下一篇

复合树脂与PMMA类树脂人工牙的粘接性能研究

杨玉琼1, 杨小静2, 孟翔峰2*   

  1. 1.南京大学医学院附属口腔医院,南京市口腔医院,江北口腔医学中心,南京大学口腔医学研究所 江苏 南京 210008;
    2.南京大学医学院附属口腔医院,南京市口腔医院修复工艺科,南京大学口腔医学研究所 江苏 南京 210008
  • 收稿日期:2024-08-02 出版日期:2025-01-28 发布日期:2025-01-24
  • 通讯作者: * 孟翔峰,E-mail:mengsoar@nju.edu.cn
  • 作者简介:杨玉琼(1993~ ),女,江苏南通人,硕士,医师,研究方向:口腔修复学。

Research on Bonding Properties between Composite Resin and PMMA Artificial Resin Teeth

YANG Yuqiong1, YANG Xiaojing2, MENG Xiangfeng2*   

  1. 1. Department of Jiangbei, Nanjing Stomatological Hospital, Affiliated Hospital of Medical School, Institute of Stomatology, Nanjing University, Nanjing 210008, China;
    2. Department of Prosthodontic Technology, Nanjing Stomatological Hospital, Affiliated Hospital of Medical School, Institute of Stomatology, Nanjing University, Nanjing 210008, China
  • Received:2024-08-02 Online:2025-01-28 Published:2025-01-24

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摘要： 目的:评估复合树脂与聚甲基丙烯酸甲酯(polymethyl methacrylate, PMMA)类树脂牙之间的粘接效果。方法:共有320颗PMMA类树脂牙试件,经过研磨和清洗后,其中160颗试件表面进行了50 μm Al2O3颗粒喷砂处理20 s。研磨和喷砂处理后的试件分别与PMMA类自凝树脂材料直接粘接作为对照组(A组),通过3种树脂粘接剂(Single Bond Universal、Clearfil SE ONE、Palfique Universal Bond)与复合树脂材料进行粘接,作为3个实验组(B、C、D组)。每组粘接试件分为两个亚组(n=20),分别经过0次和10000次冷热循环后,测量其剪切粘接强度。采用多因素方差分析及LSD-t检验对数据进行统计学处理。结果:喷砂处理能够显著增加所有实验组的初期粘接强度,但冷热循环后,其作用效果降低。冷热循环后,喷砂A组的粘接强度[(12.12±2.95) MPa]显著高于喷砂B、C、D组的,喷砂B组[(8.48±2.34) MPa]和喷砂D组[(8.90±2.51) MPa],均显著高于喷砂C组[(4.64±2.09) MPa]。结论:PMMA类树脂牙表面喷砂处理后,通过合适的树脂粘接剂能够与复合树脂产生符合ISO 10477:2020要求的粘接性能。

关键词: PMMA类树脂牙, 复合树脂, 树脂粘接剂, 粘接强度

Abstract: Objective: To explore whether the adhesive properties between composite resin and polymethyl methacrylate (PMMA)resin teeth can be used to reshape the surface of artificial teeth. Methods: A total of 320 PMMA-based resin teeth specimens were prepared, which underwent grinding and cleaning. Half of the specimens had their surfaces treated with 50μm Al2O3 particle sandblasting for 20 seconds. The specimens after grinding and sandblasting were bonded directly to a PMMA self-curing resin material, serving as the control group (Group A). The other specimens were bonded to composite resin materials using three different resin adhesives (Single Bond Universal, Clearfil SE ONE, and Palfique Universal Bond), forming three experimental groups (Groups B, C, and D). Each group of bonded specimens was divided into two subgroups (n=20), which underwent either 0 or 10,000 thermal cycles before measuring their shear bond strength. Statistical analysis was performed using multifactor analysis of variance and LSD-t tests. Results: Sandblasting significantly increased the initial bond strength in all groups; however, its effect diminished after thermal cycling. After thermal cycling, the bond strength of Group A [(12.12±2.95) MPa] was significantly higher than those of Groups B, C, and D. The sandblasted Group B [(8.48±2.34) MPa] and sandblasted Group D [(8.90±2.51) MPa] both exhibited significantly higher bond strength compared to the sandblasted Group C [(4.64±2.09) MPa]. Conclusion: Selecting the appropriate resin bonding system can help composite resin materials reshape the surface of sandblasted PMMA artificial resin teeth.

Key words: PMMA resin teeth, composite resin, adhesive resin, bond strength