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牙列内全冠与孤立全冠预备体完整终止线的RMS值比较(n=6)
Comparison of RMS values between finish lines of preparation in the dentition and isolated preparation(n=6)
| Preparation position | CEREC Omnicam oral scanner | 3Shape TRIOS oral scanner |
| RMS, root mean square. | ||
| Preparation in the dentition/μm | 44±7 | 35±6 |
| Isolated preparation/μm | 34±3 | 26±4 |
| t | 2.37 | 3.49 |
| P | 0.04 | 0.02 |
