| P value | ||
---|---|---|---|
3 years | 4 years | 5 years | |
Color-changeable chewing gum | |||
 Immediate | 0.036* | 0.054 | 0.054 |
 Conventional | 0.054 | 0.084 | 0.129 |
Gummy jelly | |||
 Immediate | 0.075 | 0.174 | 0.312 |
 Conventional | 0.342 | 0.504 | 0.501 |
Maximum occlusal force | |||
 Immediate | 0.075 | 0.189 | 0.054 |
 Conventional | 0.054 | 0.138 | 0.138 |