What is a tooth-colored filling?
A tooth-colored filling, also called a composite or white filling, is made of resin mixed with fine glass or ceramic particles. After decay is removed, the material is placed into the cavity in a soft state, shaped to match the tooth's anatomy and hardened with a curing light. Because composite bonds to enamel and dentin, the cavity does not need to be cut into a retentive shape the way older metal fillings did, so more natural tooth can be kept.
Tooth-colored fillings are the most common form of aesthetic bonded restoration at Seoul E&D Dental Clinic in Sanbon, Gunpo, and are part of everyday cavity treatment.
When do you need a filling?
Early decay limited to the outer enamel can sometimes be monitored and reversed with fluoride and better cleaning. A filling is usually needed once decay has created a cavity or reached the dentin layer underneath. Decay often starts in grooves on the chewing surface or between teeth, where it is hard to see in a mirror. Signs can include:
- Sensitivity to cold, hot or sweet foods
- A dark spot, hole or rough area you can feel with your tongue
- Food catching between two teeth
- Mild pain when biting
Many small cavities cause no symptoms at all, which is why regular check-ups and oral exams matter. Following the clinic's philosophy, we explain whether a spot needs treatment now or can be watched.
Who are composite fillings suited for?
Composite fillings suit most small to medium cavities on both front and back teeth, chipped areas, and the replacement of old amalgam fillings that have cracked or leaked. When a cavity is large and leaves thin walls, an inlay or onlay is often more durable. If decay has reached the nerve, root canal treatment will be needed before the tooth can be restored.
Getting a filling at E&D Dental, step by step
- Detecting decay. In addition to a visual exam and X-rays, the Q-ray intraoral camera can highlight plaque biofilm and areas of decay, and the images are shown to you on screen.
- Numbing. For fillings that need anesthesia, the clinic's 3-step painless anesthesia system begins with a topical gel or gargle, followed by Endo-Frost cold numbing of the injection point and a slow, computer-controlled injection. Each step is designed to reduce what you feel.
- Removing decay. Softened, infected tooth structure is removed while preserving as much healthy tooth as possible.
- Bonding. The cavity is kept dry, conditioned and coated with adhesive.
- Layering composite. Resin in a matching shade is added in layers and light-cured.
- Shaping and polishing. The filling is shaped to your bite, checked with articulating paper and polished smooth.
What to expect afterwards
The filling is fully hardened before you leave, so you can eat once the numbness fades, usually within a few hours. Be careful not to bite your cheek or lip while numb, and supervise children closely if they have had a filling, as they may chew on the numb area without noticing. Some sensitivity to cold or biting pressure in the following days is common, particularly after deeper fillings, and usually eases gradually. If it worsens, lingers or the bite feels high, contact us.
To prevent new cavities:
- Brush twice daily with fluoride toothpaste and clean between teeth
- Limit frequent snacking and sugary drinks, which keep teeth exposed to acid throughout the day
- Drink water after meals when brushing is not possible
- Book regular professional scaling and check-ups
Risks and limitations
Composite can shrink slightly while setting, and in deeper fillings this may contribute to short-term sensitivity. Composite may wear or stain over time and can be less durable than indirect restorations in large cavities on molars. New decay can form at the edges of any filling. In some deep cavities, the nerve may become inflamed after treatment, making root canal therapy necessary later.
Why patients in Sanbon and Gunpo choose E&D Dental for fillings
- Cavity treatment is one of the clinic's everyday specialties
- Decay explained with intraoral camera images, so you can see what we see
- A 3-step anesthesia approach designed for patients who dislike injections
- UV-C handpiece sterilization as part of infection control
- About a 5-minute walk from Sanbon Station on Line 4, with Monday and Thursday evening hours and Saturday mornings
International residents can ask about arranging English communication when booking. If you have sensitivity or think you may have a cavity, book a visit at our Sanbon clinic.