Research Article
Evaluation of Wear Properties of Four Bulk-Fill Composites: Attrition, Erosion, and Abrasion
Table 2
Weight and surface roughness changes after abrasion, attrition, and erosion tests (
).
| Composite | Minimum | Maximum | Mean | Std. deviation |
| Z250 | Weight diff. total | -9.00 | -1.00 | -5.1667 | 3.060 | Ra. diff. total | -1.53 | 0.46 | -0.7647 | 0.753 | Rq. diff. total | -1.80 | 0.54 | -0.9149 | 0.888 | Rz. diff. total | -4.75 | 2.12 | -1/6712 | 2.482 |
| X-tra fil | Weight diff. total | -8.00 | -7.00 | -7.6667 | 0.516 | Ra. diff. total | -0.82 | 0.36 | -0.3785 | 0.419 | Rq. diff. total | -0.99 | 0.50 | -0.4448 | 0.520 | Rz. diff. total | -2.66 | 2.91 | -0.4898 | 2.197 |
| EverX | Weight diff. total | -5.00 | -2.00 | -3.8333 | 1.169 | Ra. diff. total | -0.91 | 0.30 | -0.5132 | 0.425 | Rq. diff. total | -1.10 | -0.03 | -0.6307 | 0.409 | Rz. diff. total | -3.04 | 0.53 | -1.3497 | 1.461 |
| Filtek Bulk-Fill | Weight diff. total | -6.20 | -2.10 | -4.2167 | 1.468 | Ra. diff. total | -0.76 | -0.09 | -0.4748 | 0.257 | Rq. diff. total | -0.87 | -0.11 | -0.5535 | 0.347 | Rz. diff. total | -2.33 | 1.43 | -1.2167 | 1.381 |
| SonicFill2 | Weight diff. total | -10.00 | -4.00 | -5.5000 | 2.345 | Ra. diff. total | -1.81 | 0.19 | -0.7075 | 0.741 | Rq. diff. total | -2.25 | 0.23 | -0.8517 | 0.922 | Rz. diff. total | -6.87 | 0.16 | -2.1157 | 2.499 |
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