Dental fillings are one of the most common restorative procedures in dentistry. When a cavity forms, a filling restores the tooth to its original shape and function while preventing further decay. Dr. Patricia Chao at Chao Dental Studio in Santa Clara uses tooth-colored composite fillings because they provide both durability and a natural appearance.
Cavities form when bacteria in the mouth produce acids that erode tooth enamel. This process occurs when food particles, particularly sugars and starches, remain on the teeth because they provide fuel for bacterial growth. Over time, the acid weakens the enamel and creates a small hole, or cavity, in the tooth surface.
Some cavities produce noticeable symptoms such as tooth sensitivity, pain when biting, or visible dark spots on the tooth. However, many cavities develop without any symptoms at all, which is why regular dental checkups at Chao Dental Studio are important because early detection allows for less invasive treatment.
Composite fillings are made from a blend of resin and fine glass particles. Dr. Chao prefers composite fillings because they can be matched precisely to the natural color of the tooth, making them virtually invisible. The material bonds directly to the tooth structure, which helps strengthen the remaining tooth.
Patients with older amalgam (silver) fillings may choose to have them replaced with composite fillings for aesthetic reasons or because the old filling has worn down. Dr. Chao evaluates each situation individually, recommending replacement only when it is clinically appropriate.
The area around the affected tooth is numbed with local anesthesia. Dr. Chao then removes the decayed portion of the tooth, carefully preserving as much healthy tooth structure as possible because conservative treatment produces better long-term outcomes.
The composite material is applied in thin layers, with each layer being cured with a special light. This layering technique is important because it creates a strong, well-bonded restoration. Dr. Chao shapes and polishes the filling to match the natural contours of the tooth.
Composite fillings typically last 7 to 15 years with proper care. Maintaining good oral hygiene habits, including twice-daily brushing and daily flossing, helps extend the life of the filling because these practices prevent new decay from forming around the restoration.
Regular checkups at Chao Dental Studio allow Dr. Chao to monitor existing fillings and detect any signs of wear or secondary decay early.
Prevention is always preferable to treatment. Patients can reduce the risk of cavities by brushing with fluoride toothpaste, limiting sugary snacks and beverages, drinking water after meals, and attending regular cleaning appointments. Dr. Chao also offers dental sealants for patients who are prone to decay because sealants create a protective barrier over the chewing surfaces of the back teeth.
Composite fillings are matched to the color of the natural tooth, making them virtually undetectable. They are an excellent choice for fillings in visible areas because the material blends seamlessly with surrounding enamel.
Most filling appointments are completed in 30 to 60 minutes, depending on the size and location of the cavity.
Local anesthesia numbs the area before the procedure begins, so most patients feel little to no discomfort. Some mild sensitivity may occur after the appointment because the tooth is adjusting to the new restoration, but this typically resolves within a few days.