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Table 2 Descriptive values of surface roughness before and after polishing of bulk fill and conventional nanohybrid resin composites, with and without oxygen inhibition layer control

From: Surface roughness and oxygen inhibited layer control in bulk-fill and conventional nanohybrid resin composites with and without polishing: in vitro study

Polish Resin composite n Mean SD Median IQR Minimum Maximum
Before TNC-BF(G) 10 0.750 0.380 0.547 0.692 0.403 1.441
TNC-BF 10 0.661 0.482 0.503 0.740 0.120 1.498
TNC-CN (G) 10 0.574 0.342 0.466 0.477 0.264 1.288
TNC-CN 10 0.549 0.315 0.581 0.572 0.112 1.056
O-BF (G) 10 0.383 0.186 0.374 0.332 0.113 0.629
O-BF 10 0.740 0.431 0.669 0.830 0.085 1.340
O-CN (G) 10 0.651 0.524 0.514 0.483 0.155 1.899
O-CN 10 0.430 0.177 0.442 0.285 0.144 0.725
F-BF (G) 10 0.556 0.233 0.462 0.267 0.364 1.038
F-BF 10 0.749 0.433 0.660 0.711 0.294 1.555
F-CN (G) 10 0.681 0.180 0.737 0.273 0.370 0.852
F-NC 10 0.575 0.330 0.500 0.394 0.163 1.322
After TNC-BF(G) 10 0.261 0.264 0.159 0.339 0.033 0.751
TNC-BF 10 0.299 0.159 0.243 0.209 0.084 0.618
TNC-CN (G) 10 0.279 0.341 0.145 0.414 0.021 1.004
TNC-CN 10 0.097 0.099 0.074 0.138 0.017 0.328
O-BF (G) 10 0.213 0.214 0.137 0.353 0.014 0.568
O-BF 10 0.223 0.216 0.133 0.338 0.036 0.608
O-CN (G) 10 0.262 0.408 0.119 0.256 0.016 1.377
O-CN 10 0.134 0.161 0.069 0.162 0.015 0.506
F-BF (G) 10 0.422 0.231 0.352 0.327 0.180 0.875
F-BF 10 0.580 0.398 0.497 0.746 0.119 1.304
F-CN (G) 10 0.261 0.163 0.195 0.244 0.015 0.540
F-CN 10 0.286 0.263 0.199 0.289 0.046 0.907
  1. n Sample, SD Standard deviation, IQR Interquartile range, F-BF Filtek Bulk Fill, F-CN Filtek Z250-XT, TNC-BF Tetric N-Ceram Bulk-fill, TNC-CN Tetric N-Ceram y, O-BF Opus Bulk Fill APS, O-CN Opallis EA2, CN Conventional Nanohybrid, (G) With oxygen inhibited layer control