If you are using PrusaSlicer, I suggest to choose the Classic Perimeter Generator option instead of the Arachne one. With Arachne, the printer prints the tips of the teeth separately, resulting in connections between them.

I recommend cleaning the print bed before printing to ensure that the individual spikes adhere well.

Although I personally have no problems with PLA, another material might be better for the stability of the spikes.

Designed by Thingiverse User “Glompie”:

Summary

Nozzle 0.4
PLA
Layer 0.1
Infill 100%

EDIT: improved it (version 4)
Made a few more pins with radius on the end and made the comb stiffer by making it a bit thicker.

Post-Printing