How to Recognize When Plaque and Tartar Needs Dental Attention
https://wiki-velo.win/index.php/When_to_Revisit_Your_Dental_Plan_for_Toothache
Many people delay a dental visit because they are unsure what a symptom means. Plaque is a soft bacterial film that forms on teeth, while tartar is hardened plaque that cannot be brushed away easily