You can buy a filing guide that fits over the teeth & has a slot for the "dog" to stick up through so it can be filed to the correct height realitive to the wear on the chain. The dog should be filed as the chain wears.
I do the same as DIED & file a little deeper but will also warn it's not for the unattentive chainsawer. It can cause unexpected kickbacks esp. on small stuff but cuts like a son of a bisquet eater! Just pay attention & be carefulf!
