22 February 2025 : Laboratory Research
Linear Dimensional Accuracy in Maxillomandibular Records: A Comparative Study of Scannable and Transparent Materials
Mohammed E. SayedDOI: 10.12659/MSM.947265
Med Sci Monit 2025; 31:e947265
Table 4 Dimensional variations of different bite registration materials (standard, scannable, transparent) at 1 hour when compared with original die dimensions and control group.
| BRM types | Subgroup codes | Median obtained | Measured against | N | Median | Dimensional change | Status | ||
|---|---|---|---|---|---|---|---|---|---|
| In mm | In percent% | ||||||||
| Die (X) | Original Die | OD | 25.00 | 3 | 25.00 | 25.00 | 0% | Same | |
| Control (X) | Occlufast Rock | Group C | 24.89 | OD | 15 | 24.89 | −0.11 | 0.44% | Decrease |
| CAD BRM (Y) | Occlufast CAD | Group CadO | 24.93 | OD | 3 | 25.00 | −0.07 | 0.28% | Decrease |
| Group C | 15 | 24.89 | 0.04 | 0.16% | Increase | ||||
| Virtual CADBite | Group CadV | 24.94 | OD | 3 | 25.00 | −0.06 | 0.24% | Decrease | |
| Group C | 15 | 24.89 | 0.05 | 0.20% | Increase | ||||
| Flexitime Bite | Group CadF | 24.89 | OD | 3 | 25.00 | −0.11 | 0.44% | Decrease | |
| Group C | 15 | 24.89 | 0.00 | 0% | Same | ||||
| Clear BRM (Y) | Maxill Bite | Group ClM | 24.94 | OD | 3 | 25.00 | −0.06 | 0.24% | Decrease |
| Group C | 15 | 24.89 | 0.05 | 0.20% | Increase | ||||
| Charmflex Bite | Group ClCh | 24.93 | OD | 3 | 25.00 | −0.07 | 0.28% | Decrease | |
| Group C | 15 | 24.89 | 0.04 | 0.16% | Increase | ||||
| Defend ClearBite | Group ClD | 24.94 | OD | 3 | 25.00 | −0.06 | 0.24% | Decrease | |
| Group C | 15 | 24.89 | 0.05 | 0.20% | Increase | ||||
| BRM – bite registration material; n – number of specimens; D – dimensional change; OD – original dimensions of the die. Interpretation of groups: CAD, computer aided diagnosis (scannable BRM); Cl, clear BRM (transparent material that shows voids and defects). D (%)=(X-Y)/X×100, where X is the original standard measurment of coordinates in the die and Y is the observed average measurements of coordinates on the samples in particular group. For the status of the results, the median values of each subgroup are compared against the original dimensions of the die and the dimensions obtained for control group. | |||||||||






