离子释放修复材料的机械性能。

Mechanical properties of ion-releasing restorative materials.

机构信息

Faculty of Stomatology in Pancevo, University Business Academy in Novi Sad, Pancevo, Serbia,

Faculty of Stomatology in Pancevo, University Business Academy in Novi Sad, Pancevo, Serbia.

出版信息

Am J Dent. 2024 Feb;37(1):13-18.

PMID:38458977

Abstract

PURPOSE

To evaluate and compare the laboratory compressive strength (CS), flexural strength (FS), and diametral tensile strength (DTS) of Cention Forte and three bulk fill restorative materials.

METHODS

A total of 168 specimens were prepared following the manufacturers' instructions and standards for testing CS, FS, and DTS. Mechanical properties of Cention Forte (LC-Cent) were compared to three commercial bulk-fill materials for posterior restorations: Fuji IX Extra (Fuji), Tetric PowerFill (TPF), and Equia Forte HT (Equia). The tests were performed 24 hours after storage in distilled water on a universal testing machine at a crosshead speed of 0.75 mm/minute. Strength values (MPa) were calculated and statistically analyzed by one-way ANOVA and Tukey's post hoc test (P< 0.05).

RESULTS

Analysis showed significant differences between tested materials for CS, FS, and DTS (P= 0.0001). LC-Cent showed the highest mean value for FS (112.8 MPa) with a significant difference compared to Fuji and Equia. DTS (49.2 MPa) of LC-Cent was significantly higher than all tested materials. TPF showed the highest mean value (180 MPa) for CS but without significant difference compared to LC-Cent.

CLINICAL SIGNIFICANCE

Ion-releasing material Cention Forte, according to obtained results, may serve as a viable alternative for posterior restorations compared to conventional bulk-fill restorative materials.

摘要

目的

评估和比较 Cention Forte 与三种块状填充修复材料的实验室抗压强度（CS）、弯曲强度（FS）和直径拉伸强度（DTS）。

方法

根据 CS、FS 和 DTS 的制造商说明和标准，共制备了 168 个样本。将 Cention Forte（LC-Cent）的机械性能与三种用于后牙修复的商用块状填充材料进行比较：富士 IX Extra（Fuji）、Tetric PowerFill（TPF）和 Equia Forte HT（Equia）。测试在万能试验机上以 0.75mm/min 的十字头速度在蒸馏水储存 24 小时后进行。通过单向方差分析和 Tukey 事后检验（P<0.05）计算和统计分析强度值（MPa）。

结果

分析表明，CS、FS 和 DTS 测试材料之间存在显著差异（P=0.0001）。LC-Cent 的 FS 平均值最高（112.8 MPa），与 Fuji 和 Equia 相比有显著差异。LC-Cent 的 DTS（49.2 MPa）明显高于所有测试材料。TPF 的 CS 平均值最高（180 MPa），但与 LC-Cent 相比无显著差异。