How to see if there is tartar under the teeth

Walk1

I read that if we have tartar under our teeth we need an in-depth cleaning (I think what we call a scaling) and not only a simple cleaning.

I would like to know if the dentist see whether or not there is the tartar under the teeth by looking in the mouth or he has to do first a simple cleaning.

CityDenalCentre

Dentists can generally detect whether there is tartar under your teeth through careful visual inspection and tactile examination without needing to perform a simple cleaning first. If significant tartar is found, they will recommend an in-depth cleaning (scaling) as necessary. Dentists are trained to identify tartar during a visual examination of the mouth. They use various tools, including dental mirrors and explorers, to assess the condition of the teeth and gums. During this examination, they look for signs of tartar buildup, which may appear as yellow or brown deposits on the teeth.