Table 4. Mean, standard deviation (SD), maximum (Max), minimum (Min), median (Med), confidence interval (CI) of descriptive statistics of lingual marginal discrepancies in ceramic veneers (unit: µm).
| Group | Lingual marginal discrepancy | |||||||
|---|---|---|---|---|---|---|---|---|
| Mean | SD | Max | Min | Med | 95% CI | P value | ||
| Lower | Upper | |||||||
| AM | 119.32a | 29.49 | 219.40 | 74.40 | 110.50 | 108.30 | 130.33 | P < .019 |
| SM | 92.92b | 33.06 | 158.20 | 43.40 | 88.65 | 80.57 | 105.26 | |
| TW | 89.20b | 38.39 | 163.60 | 22.60 | 78.00 | 74.86 | 103.53 | |
AM: additive manufacturing; SM: subtractive manufacturing; TW: traditional free-hand wax-up
Values in the a,b column represent statistically significant differences (P < .05).