Lee Yoon, Kim Junghyun, Shin Yooseok
Department of Conservative Dentistry, College of Dentistry, Gangneung Wonju National University, Gangneung 25457, Korea.
Department of Conservative Dentistry, Wonju Severance Christian Hospital, Wonju College of Medicine, Yonsei University, Wonju 26426, Korea.
Materials (Basel). 2021 Jun 29;14(13):3639. doi: 10.3390/ma14133639.
The purpose of this in vitro study was to evaluate the push-out bond strength of fiber-reinforced resin posts using self-adhesive cements with different adhesive systems. A total of 50 single-rooted human maxillary premolars with fully developed apices and 15-16 mm straight root canals were selected. The teeth were divided into 10 groups with coronal and apical parts according to the adhesive bonding system and luting material used: one universal adhesive with MDP-containing self-adhesive resin cement; another universal adhesive with MDP-containing self-adhesive resin cement; universal primer with MDP-containing self-adhesive resin cement; universal primer with dual-cure resin cement; MDP-containing self-adhesive resin cement only (Control). Each specimen was subjected to a fatigue load of 600,000 cycles using a chewing simulator with sliding movement and cut horizontally for push-out bond strength testing. Statistical evaluation consisted of a one-way ANOVA test using SPSS v23.0. The highest bond strength (7.05 MPa) was obtained in the coronal part of the Single Bond universal group treated with MDP-containing self-adhesive resin cement and the lowest strength (4.77 MPa) was observed in apical part of MDP-containing self-adhesive resin cement group (Control). However, the one-way ANOVA results showed no significant difference between all 10 groups ( > 0.05). The self-adhesive cement without adhesive bonding showed no statistically different value compared to self-adhesive cements with adhesive bonding.
本体外研究的目的是评估使用具有不同粘结系统的自粘结水门汀的纤维增强树脂桩的推出粘结强度。共选择了50颗单根人上颌前磨牙，根尖完全发育，根管笔直，长度为15 - 16毫米。根据粘结系统和粘结材料，将牙齿分为10组，包括冠部和根部：一组使用含MDP的自粘结树脂水门汀的通用粘结剂；另一组使用含MDP的自粘结树脂水门汀的通用粘结剂；含MDP的自粘结树脂水门汀的通用底漆；含双固化树脂水门汀的通用底漆；仅含MDP的自粘结树脂水门汀（对照组）。每个样本使用具有滑动运动的咀嚼模拟器承受600,000次循环的疲劳载荷，并水平切割以进行推出粘结强度测试。统计评估使用SPSS v23.0进行单因素方差分析。在使用含MDP的自粘结树脂水门汀处理的单键通用组的冠部获得了最高粘结强度（7.05 MPa），而在含MDP的自粘结树脂水门汀组（对照组）的根部观察到最低强度（4.77 MPa）。然而，单因素方差分析结果显示所有10组之间无显著差异（> 0.05）。与具有粘结的自粘结水门汀相比，无粘结的自粘结水门汀在统计学上没有差异。
