34 yrs. old pt. has class 1 malocclusion with centric occlusion she has no problem but while movement she had premature contact of anterior

34 yrs. old pt. has class 1 malocclusion with centric occlusion she has no problem but while movement she had premature contact of anterior:

1. Grinding of upper anterior ***

2. Grinding of lower anterior

3. Grinding of upper molar 

4. Grinding of lower molar