Biological factor | r | p value | Static occlusion | r | p value | Psychological factor | r | p value |
---|---|---|---|---|---|---|---|---|
Age | 0.050 | 0.172 | Angle’s malocclusion | − 0.061 | 0.320 | Depression | 0.231 | < 0.001 |
Gender | 0.044 | 0.222 | Anterior teeth overbite | 0.166 | < 0.001 | Anxiety | 0.355 | < 0.001 |
Sleep bruxism | 0.164 | < 0.001 | Anterior teeth overjet | 0.110 | 0.002 | Sleep disturbance | 0.184 | < 0.001 |
Awake bruxism | 0.099 | 0.006 | Posterior teeth crossbite | − 0.041 | 0.260 |  |  |  |
Empty chewing | 0.192 | < 0.001 | Posterior scissor bite | 0.055 | 0.135 |  |  |  |
Unilateral chewing | 0.219 | < 0.001 |  |  |  |  |  |  |
Chewing gum | 0.079 | 0.030 | Â | Â | Â | Â | Â | Â |