Gum line cavity
A gumline cavity is decay near the gingival margin, treated according to its depth and whether the root is exposed.
The short answer
A cavity at the gumline is tooth decay on the cervical surface near the gingival margin, and treatment depends on its depth and whether the root surface is exposed.
What is the direct answer?
What does this question mean?
The crown is protected by enamel, while an exposed root has dentine and cementum that are less mineralized. Plaque acids can dissolve these surfaces, especially where recession, dry mouth, a rough margin, or difficulty cleaning lets plaque remain.
What can you do next?
Use fluoride toothpaste, clean gently along the gumline and between teeth, and reduce frequent sugary or acidic drinks. A dentist may remove softened tooth structure and place resin or glass-ionomer material; deeper disease may require pulp treatment.
When should you seek dental care?
Arrange an examination if the area is sensitive, catches floss, looks brown or hollow, or traps plaque. Swelling, spontaneous pain, fever, or a bad taste can signal infection.
What should you ask the dentist?
Is the lesion on enamel, exposed root dentine, or a filling margin, and does the pulp or gum need treatment?
Frequently asked questions
What information should I bring?
Bring a medicine list, relevant medical conditions, previous dental records, and when the concern began.
Can treatment be chosen without an examination?
No. Examination identifies the anatomy, disease activity, materials, and risks that determine the appropriate option.