Table 3.
| a. Mean Color Change (ΔE) – Dentsply Teeth | |||||
|---|---|---|---|---|---|
| DW (control) | CB | PO3 | EF | KL | |
| ΔE (SD) | ΔE (SD) | ΔE (SD) | ΔE (SD) | ΔE (SD) | |
| TP shade A1 | |||||
| 4 weeks | 0.5 (0.4) | 1.1 (0.5) | 0.6 (0.3) | 1.1 (0.4) | 1.2 (0.4) |
| 12 weeks | 0.9 (0.6) | 1.1 (0.5) | 1 (0.4) | 1.0 (0.2) | 0.7 (0.4) |
| 24 weeks | 0.8 (0.4) | 0.9 (0.2) | 1.4 (0.5) | 1.6 (0.5) | 1.9 (0.5) |
| 36 weeks | 0.3 (0.3) | 0.5 (0.4) | 1.1 (0.3) | 1.0 (0.3) | 1.4 (0.8) |
| 48 weeks | 0.6 (0.5) | 1.5+ (0.5) | 1.3+ (0.4) | 1.2+ (0.5) | 0.5 (0.3) |
| TP shade B1 | |||||
| 4 weeks | 0.5 (0.2) | 0.6 (0.3) | 1.0 (0.6) | 0.9 (0.2) | 1.2 (0.7) |
| 12 weeks | 0.4 (0.3) | 0.7 (0.3) | 1.5 (0.5) | 1.0 (0.5) | 1.4 (0.4) |
| 24 weeks | 1.0 (0.7) | 1.1 (0.5) | 1.8 (0.7) | 1.4 (0.5) | 2.2 (0.5) |
| 36 weeks | 0.7 (0.3) | 0.7 (0.6) | 1.5 (0.5) | 0.9 (0.3) | 1.5 (0.5) |
| 48 weeks | 0.7 (0.4) | 0.7 (0.6) | 0.8 (0.5) | 1.1+ (0.5) | 0.5 (0.2) |
| TP shade C1 | |||||
| 4 weeks | 0.4 (0.2) | 0.5 (0.3) | 0.7 (0.4) | 1 (0.2) | 1.6 (0.9) |
| 12 weeks | 0.6 (0.3) | 1.0 (0.4) | 1.1 (0.3) | 1.3 (0.3) | 1.1 (0.4) |
| 24 weeks | 0.5 (0.3) | 1.3 (0.6) | 1.3 (0.4) | 1.7 (0.4) | 2.0 (0.6) |
| 36 weeks | 0.4 (0.1) | 0.9 (0.3) | 0.9 (0.2) | 1.0 (0.2) | 1.6 (0.9) |
| 48 weeks | 0.4 (0.2) | 0.5 (0.3) | 0.8+ (0.3) | 1.0+ (0.4) | 0.4 (0.3) |
| b. Mean Color Change (ΔE) – Ivoclar Teeth | |||||
|---|---|---|---|---|---|
| DW (control) | CB | PO3 | EF | KL | |
| ΔE (SD) | ΔE (SD) | ΔE (SD) | ΔE (SD) | ΔE (SD) | |
| SR shade A1 | |||||
| 4 weeks | 0.4 (0.4) | 0.6 (0.4) | 1.0 (0.6) | 0.9 (0.2) | 1.0 (0.5) |
| 12 weeks | 0.4 (0.3) | 1.0 (0.6) | 1.3 (0.5) | 1.4 (0.6) | 1.1 (0.6) |
| 24 weeks | 0.6 (0.3) | 0.5 (0.3) | 1.1 (0.5) | 1.4 (0.6) | 1.6 (1.0) |
| 36 weeks | 0.9 (0.4) | 0.5 (0.4) | 1.1 (0.4) | 0.9 (0.3) | 0.8 (0.5) |
| 48 weeks | 0.8 (0.3) | 1.1 (0.9) | 1.6+ (1.2) | 1.0 (0.3) | 0.8 (0.5) |
| SR shade B1 | |||||
| 4 weeks | 0.5 (0.3) | 1.2 (0.9) | 0.8 (0.6) | 0.9 (0.4) | 0.9 (0.4) |
| 12 weeks | 0.3 (0.0) | 1.5 (1.1) | 0.6 (0.3) | 0.9 (0.2) | 1.3 (0.8) |
| 24 weeks | 0.7 (0.3) | 0.9 (1.0) | 0.6 (0.3) | 1.1 (0.7) | 1.4 (0.8) |
| 36 weeks | 1.1 (0.2) | 0.9 (0.6) | 0.7 (0.4) | 0.7 (0.3) | 0.9 (0.8) |
| 48 weeks | 0.5 (0.4) | 1.7+ (1.4) | 1.1+ (0.8) | 0.7 (0.3) | 0.5 (0.3) |
| SR shade C1 | |||||
| 4 weeks | 1.0 (0.5) | 1.2 (0.6) | 1.0 (0.3) | 1.0 (0.5) | 0.7 (0.2) |
| 12 weeks | 1.1 (0.5) | 1.3 (0.7) | 1.0 (0.4) | 1.3 (0.4) | 0.6 (0.4) |
| 24 weeks | 1.4 (0.7) | 0.6 (0.6) | 0.6 (0.2) | 1.9 (1.0) | 1.9 (0.7) |
| 36 weeks | 1.0 (0.7) | 1.0 (0.3) | 1.0 (0.4) | 1.0 (0.6) | 1.0 (0.9) |
| 48 weeks | 1.2 (0.7) | 1.5 (0.7) | 1.6+ (0.9) | 0.7* (0.6) | 0.7* (0.5) |
| c. Mean Color Change (ΔE) – Acrylic Base Resin | |||||
|---|---|---|---|---|---|
| DW (control) | CB | PO3 | EF | KL | |
| ΔE (SD) | ΔE (SD) | ΔE (SD) | ΔE (SD) | ΔE (SD) | |
| LU | |||||
| 4 weeks | 1.8 (0.4) | 1.8 (0.7) | 1.3 (0.1) | 1.8 (0.2) | 1.9 (0.3) |
| 12 weeks | 2.4 (0.4) | 2.5 (1.0) | 1.9 (0.1) | 1.7 (0.2) | 1.4 (0.3) |
| 24 weeks | 2.4 (0.4) | 2.7 (0.9) | 2.0 (0.1) | 1.8 (0.2) | 1.7 (0.3) |
| 36 weeks | 2.4 (0.3) | 2.6 (1.0) | 1.9 (0.2) | 1.6 (0.2) | 1.3 (0.2) |
| 48 weeks | 1.4 (0.1) | 1.9+ (1.0) | 1.7 (0.2) | 1.3 (0.1) | 1.6 (0.2) |
| PA | |||||
| 4 weeks | 1.9 (0.2) | 2.0 (0.2) | 1.2 (0.2) | 2.1 (0.1) | 2.8 (0.1) |
| 12 weeks | 2.8 (0.2) | 2.8 (0.2) | 2.0 (0.1) | 2.1 (0.2) | 1.3 (0.2) |
| 24 weeks | 2.9 (0.2) | 3.1 (0.2) | 2.1 (0.1) | 2.3 (0.2) | 1.7 (0.2) |
| 36 weeks | 2.8 (0.2) | 2.9 (0.2) | 2.0 (0.1) | 2.1 (0.1) | 1.3 (0.2) |
| 48 weeks | 1.6 (0.1) | 1.9 (0.2) | 1.7 (0.1) | 2.0+ (0.1) | 0.4* (0.1) |
| VA | |||||
| 4 weeks | 0.5 (0.2) | 0.6 (0.3) | 0.7 (0.2) | 2.6 (1.2) | 1.7 (0.1) |
| 12 weeks | 1.4 (0.1) | 1.6 (0.1) | 1.4 (0.2) | 2.6 (1.2) | 1.1 (0.4) |
| 24 weeks | 1.6 (0.1) | 2.4 (0.1) | 1.7 (0.2) | 2.8 (1.1) | 1.6 (0.3) |
| 36 weeks | 1.7 (0.1) | 2.6 (0.1) | 1.6 (0.2) | 2.7 (1.1) | 1.3 (0.3) |
| 48 weeks | 1.7 (0.1) | 3.1+ (0.1) | 1.4 (0.1) | 2.3+ (1.3) | 0.3* (0.2) |
*
indicates significantly lower ΔE than control
+
indicates significantly higher ΔE than control