Yagu 8020 Dental Clinic
Fillings & Root Canals
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Fillings & root canals: saving your own teeth

Treating early gives a better chance of keeping your own tooth.

01Decay & fillings

DecayBeforeResinAfterNerve

Early decay doesn't hurt; by the time it's sensitive it is often quite deep. The decay is removed and the tooth filled to restore its shape and function.

Front (aesthetic) vs back teeth

Different materials are chosen for front and back teeth depending on position and needs.

02Protective base & soothing

For deep cavities near the nerve, a protective base is placed first to reduce sensitivity. If the tooth is very painful, a soothing clove-oil dressing calms the nerve first.

03Root canal treatment

When decay or a crack reaches the nerve, the tooth aches on its own, at night or when biting. Root canal treatment cleans out and disinfects the nerve, then fills and seals the canals to try to keep the tooth.

1. Inflamed nerve2. Cleaned3. Filled & sealed
  1. 1

    Open & remove nerve

    The tooth is opened and the inflamed nerve removed.

  2. 2

    Clean & disinfect

    Canals are shaped with rotary files and disinfected; medicine may be left inside between visits.

  3. 3

    Fill the canals

    Canals are filled and sealed with heated gutta-percha.

  4. 4

    Protect the tooth

    Treated teeth become brittle, so a crown is usually recommended.

※ Root canal treatment usually takes 2–3 visits. Don't bite hard things on the tooth meanwhile.

04Whitening & basic procedures

Whitening uses a whitening agent, after an exam, to improve tooth colour. Results vary from person to person.

※ For 24–48 hours after whitening, avoid coloured food and drinks such as coffee, tea and red wine.

05Aftercare

After fillings and root canals

  • Don't eat until the numbness wears off (about 2–3 hours)
  • You can eat normally after a resin filling
  • Don't bite hard things on a tooth during root canal treatment
  • Contact us if you have severe pain or swelling