脱敏剂对树脂结合强度对声牙的作用
Fahad Ibrahim Alawad1, Isaac Jordão de Souza Araújo1,2, Ana Beatriz Gomes de Carvalho1,3
1Department of Cariology, Restorative Sciences and Endodontics, University of Michigan-School of Dentistry, 1011 N. University Avenue, Ann Arbor, MI, 48109, USA.
Odontology
|October 16, 2023
概括
酸 (SDF/KI) 的银胺化物显著降低了复合物恢复键的强度. 纳米酸 (nHAp) 脱敏剂保持可接受的结合强度,这对于牙科材料至关重要.
科学领域:
- 牙科材料科学 牙科材料科学
- 恢复性牙科 恢复性牙科
- 生物材料是一种生物材料.
背景情况:
- 丹丁过敏症影响着数以百万计的人,经常用脱敏剂治疗.
- 这些剂对复合材料修复的结合强度的影响对于临床成功至关重要.
- 评估无敏剂对剪接强度 (SBS) 的影响对于材料选择至关重要.
研究的目的:
- 评估牙过敏治疗对复合材料修复剪接强度 (SBS) 的直接和长期影响.
- 为了比较银二胺化物与酸 (SDF/KI) 和纳米酸 (nHAp) 脱敏剂的性能.
- 为了确定这些处理是否会损害对持久修复所需的结合强度.
主要方法:
- 准备了90个人的牙,处理了无剂 (控制),SDF/KI或nHAp.
- 应用了蚀刻和冲洗技术,随后使用了通用粘合剂和复合材料.
- 切割键强度 (SBS) 经过热循环 (5000个循环) 后立即进行测试;分析了故障模式.
主要成果:
- 对照组显示最高的SBS (27.10 MPa);SDF/KI组显示最低的 (6.87 MPa).
- nHAp脱敏剂的SBS显著高于SDF/KI,达到最低要求的债券强度.
- 在每个组内,直接和热循环样本之间没有发现SBS的显著差异.
结论:
- 脱敏剂对复合材料修复的剪接强度的影响取决于材料.
- SDF/KI显著降低了债券强度,可能会损害恢复寿命.
- 基于nHAp的脱敏剂保持可接受的结合强度,使它们成为需要修复的过敏牙的可行选择.
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