Close-up dental portrait showing upper and lower teeth and gums with visible plaque and yellow discoloration, illustrating oral hygiene issues and dental anatomy details.

teeth tooth gum gums dental dentistry oral mouth plaque tartar staining yellow hygiene gingiva recession inflamed closeup macro portrait smile incisor canine molar enamel dentin periodontal bacteria decay cavity clinic dentist health care cleaning treatment medical anatomy texture detail surface sensitivity close discoloration screening examination patient oralcare