Table 5. Mean, standard deviation (SD), maximum (Max), minimum (Min), median (Med), confidence interval (CI) of total marginal discrepancies in ceramic veneers (unit: µm).
| Group | Total marginal discrepancy | |||||||
|---|---|---|---|---|---|---|---|---|
| Mean | SD | Max | Min | Med | 95% CI | P value | ||
| Lower | Upper | |||||||
| AM | 99.68a | 28.01 | 219.40 | 41.20 | 98.85 | 94.62 | 104.74 | P < .001 |
| SM | 76.60b | 28.76 | 158.20 | 35.2 | 66.55 | 71.40 | 81.80 | |
| TW | 83.08b | 39.74 | 200.00 | 22.6 | 73.65 | 75.89 | 90.26 | |
AM: additive manufacturing; SM: subtractive manufacturing; TW: traditional free hand wax-up
Values in the a,b column represent statistically significant differences (P < .05).