Irie Masao, Okada Masahiro, Maruo Yukinori, Nishigawa Goro, Matsumoto Takuya
Department of Biomaterials, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama 700-8525, Japan.
Department of Dental Biomaterials, Tohoku University Graduate School of Dentistry, 4-1 Seiryo-machi, Aoba-ku, Sendai 980-8575, Japan.
Polymers (Basel). 2024 Aug 9;16(16):2266. doi: 10.3390/polym16162266.
The aim of this study was to compare the long-term bonding performance to lithium disilicate (LDS) ceramic between one-bottle and two-bottle bonding agents. Bonding performance was investigated under these LDS pretreatment conditions: with hydrofluoric acid (HF) only, without HF, with a two-bottle bonding agent (Tokuyama Universal Bond II) only. Shear bond strengths between LDS and nine resin cements (both self-adhesive and conventional adhesive types) were measured at three time periods: after one-day water storage (Base), and after 5000 and 20,000 thermocycles (TC 5k and TC 20k respectively). Difference in degradation between one- and two-bottle bonding agents containing the silane coupling agent was compared by high-performance liquid chromatography. With HF pretreatment, bond strengths were not significantly different among the three time periods for each resin cement. Without HF, ESTECEM II and Super-Bond Universal showed significantly higher values than others at TC 5k and TC 20k when treated with the recommended bonding agents, especially at TC 20k. Difference in degradation between one- and two-bottle bonding agents containing the silane coupling agent was compared by high-performance liquid chromatography (HPLC). For both cements, these values at TC 20k were also not significantly different from pretreatment with only Tokuyama Universal Bond II. For LDS, long-term bond durability could be maintained by pretreatment with Tokuyama Universal Bond II instead of the hazardous HF.
本研究的目的是比较单瓶和双瓶粘结剂与二硅酸锂（LDS）陶瓷的长期粘结性能。在这些LDS预处理条件下研究粘结性能：仅用氢氟酸（HF）、不用HF、仅用双瓶粘结剂（德山通用粘结剂II）。在三个时间段测量LDS与九种树脂水门汀（自粘结型和传统粘结型）之间的剪切粘结强度：一天水储存后（基础）、5000次和20000次热循环后（分别为TC 5k和TC 20k）。通过高效液相色谱法比较含硅烷偶联剂的单瓶和双瓶粘结剂之间的降解差异。经HF预处理后，每种树脂水门汀在三个时间段的粘结强度无显著差异。未经HF处理时，使用推荐的粘结剂处理后，ESTECEM II和超级粘结通用型在TC 5k和TC 20k时的值显著高于其他产品，尤其是在TC 20k时。通过高效液相色谱法（HPLC）比较含硅烷偶联剂的单瓶和双瓶粘结剂之间的降解差异。对于两种水门汀，在TC 20k时这些值与仅用德山通用粘结剂II预处理时也无显著差异。对于LDS，用德山通用粘结剂II预处理而非危险的HF可维持长期粘结耐久性。
