How a cavity progresses, and how each stage is treated

Found early and treated early, more of your healthy tooth is kept.

  1. Early cavity

    A very small cavity

    What you may notice

    • Only in the enamel
    • May have no symptoms
    • Usually painless

    Treatment

    Simple filling

  2. Moderate cavity

    Into the dentin

    What you may notice

    • The cavity is larger and has reached the dentin
    • May be sensitive to hot and cold
    • Food gets stuck easily

    Treatment

    Larger filling (composite or inlay)

  3. Severe cavity

    Close to the pulp

    What you may notice

    • The cavity is deep and near the nerve
    • May cause a noticeable ache
    • We evaluate whether a root canal is needed
    • A crown may be needed to protect the tooth

    Treatment

    Root canal and crown

  4. Pulp inflammation or infection

    Pain or swelling

    What you may notice

    • The cavity has reached the pulp
    • Pain can start on its own, or when biting
    • Sensitive to hot and cold
    • Gums may swell or form an abscess

    Treatment

    Root canal and crown

  5. Cannot be saved

    Severe damage

    What you may notice

    • Decay is extensive and most of the tooth structure is gone
    • May cause repeated infection and severe pain
    • Cannot be repaired with a filling or root canal

    Treatment

    Extraction, then an implant, fixed bridge, or removable denture

The stages of gum disease

Gum disease is measured by how deep the pocket between tooth and gum has become, and by how much supporting bone has been lost.

  1. Healthy

    Healthy gums and bone

    Pocket depth 1–3 mm

    What you may notice

    • Gums are pink and firm
    • Almost no bleeding
    • Normal bone height
  2. Mild periodontitis

    Early bone loss

    Pocket depth 3–4 mm

    What you may notice

    • Gums are redder and may bleed when brushing
    • Tartar is present
    • Bone loss has begun
  3. Moderate periodontitis

    Noticeable bone loss

    Pocket depth 5–6 mm

    What you may notice

    • Gums are red, swollen, and bleed easily
    • Obvious tartar, including below the gumline
    • Noticeable bone loss
    • Gums may recede
  4. Severe periodontitis

    Severe bone loss

    Pocket depth ≥ 7 mm

    What you may notice

    • Gums are severely red and swollen, and bleed easily
    • Heavy tartar below the gumline
    • Severe bone loss and visible gum recession
    • Teeth may loosen or even fall out

Noticed one of these signs?

Call us and we will take a look. Dr. Chang explains what he sees and what it costs before any treatment begins.