Do your best to print them, ensure your teeth are filled as much as possible with perimeters selecting the best perimeter thickness for the case. I think 3 perimeters for walls work well for most cases.
Print them solid and try to keep the start/end of the loops away from the tip of the teeth, near the centre. 0.2mm layer heights will work great, but smaller ones could give you better results.
Search for great inter-layer adhesion so you can really screw the grub strongly and have a durable connection.