Answer

Yes, you can brush after Navkarsi time.

Explanation

In Jain practice, Navkarsi generally means taking food or drink only after a certain time after sunrise, according to the vow or discipline being observed.

Brushing teeth is not considered eating, but care should be taken:

• Do not swallow toothpaste, water, or mouthwash.
• Use water carefully and mindfully.
• If you are observing a strict vow or tapasya, follow the guidance of your guru, sadhu-sadhviji, or family tradition.

Spiritual Understanding

The purpose of Navkarsi is discipline, self-control, and awareness in daily life. Brushing after Navkarsi time is generally acceptable, but it should be done with mindfulness and without carelessness.

Takeaway

You may brush after Navkarsi time, but avoid swallowing anything and follow your specific tradition if you are observing a strict rule.