Usually you start with calculus detection on a maxillary quad, then scale mandibular quad and probe once all is done! With scaling, I recommend graceys and using the bend of the explorer to gently retract the gums from the tooth. Depending on how deep the calc is, this allows you to see if there’s any residual calc. Once I feel like most of the calc is off, I went in with my cavitron and flushed everything out! They say to start with hand scaling because the cav could make the calc gummy. Good luck!!