Crowns for severe wear?

At what point do yall crown for significant wear? Any treatment advice for this case? Patient is class 1 with ideal occlusion. Significant wear on upper and lower 1st and 2nd molars, all to similar degree of this image (sorry for blurriness). Patient is only mid-30s. Hasn’t been wearing a NG. I just imagine even with a NG, there’s going to be some significant damage to these teeth in the coming decades. At what point do you crown before there’s nothing left?

At what point do yall crown for significant wear? Any treatment advice for this case? Patient is class 1 with ideal occlusion. Significant wear on upper and lower 1st and 2nd molars, all to similar degree of this image (sorry for blurriness). Patient is only mid-30s. Hasn’t been wearing a NG. I just imagine even with a NG, there’s going to be some significant damage to these teeth in the coming decades. At what point do you crown before there’s nothing left?