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三种不同的老化和不老化的3D打印永久皇冠树脂的柔性强度的比较

Yasemin Nur Korkmaz, S Kutalmis Buyuk, Huseyin Simsek

The International journal of prosthodontics

|May 24, 2024

概括

在3D打印的牙树脂中,Saremco Crowntec表现出优越的屈曲强度,而Senertek P-Crown V2显示出最低的强度. 人工老化降低了所有测试的树脂的强度.

科学领域:

材料科学材料科学材料科学
生物材料工程生物材料工程
牙科材料牙科材料

背景情况:

3D打印树脂越来越多地用于牙科应用,用于制造皇冠和其他修复.
评估这些树脂的机械性能,如屈曲强度,对于临床成功至关重要.
老化对3D打印牙科树脂性能的影响需要彻底调查.

研究的目的:

为了比较三种不同的3D打印牙冠树脂的屈曲强度.
评估人工老化对这些树脂曲强度的影响.
为了确定最强大的3D打印树脂用于牙科应用.

主要方法:

三种牙冠树脂 (Saremco Crowntec,Senertek P-Crown V2,Senertek P-Crown V3) 被添加制造成条形样本.
标本被分为老龄化和非老龄化子组,老龄化组接受热循环 (5-55°C,5000个周期).
使用通用测试机器测量了屈曲强度.

主要成果:

在老化和非老化树脂之间观察到显著的屈曲强度差异 (P < .001).
萨雷姆科Crowntec展示了最高的屈曲强度,而Senertek P-Crown V2展示了最低的屈曲强度.
在老化后,Saremco Crowntec 和 Senertek P-Crown V3 没有显著的强度差异,而不是 Senertek P-Crown V2 (P = .039).

结论:

建议Saremco Crowntec用于牙科应用,因为它具有优越的屈曲强度,无论是老化还是未老化.
人工老化对所有测试的3D打印树脂的屈曲强度产生了负面影响.
在老化后,Senertek P-Crown V2表现出屈曲强度显著下降,这表明潜在的长期临床限制.

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