Understanding composite fillings
Dental caries softens enamel and dentin; the goal of a filling is to remove bacteria-infected structure and rebuild the tooth form for chewing and flossing. Composites adhere to etched tooth surface through bonding systems, which can allow more conservative preparations than older techniques in some cases.
We select shades under good lighting and may use multiple tints or opacities to mimic natural enamel. The restoration is cured incrementally to reduce shrinkage stress, then adjusted so your bite feels even — high spots are corrected to avoid jaw discomfort.
Composites can wear, stain at the margins over years, or chip if you grind or bite hard objects. When a filling is large or the tooth is structurally weak, an onlay or crown may be recommended instead.
We discuss fluoride, diet, and hygiene so new decay is less likely around your restoration.
What your filling appointment may include
Examination & radiographs
Visual and X-ray assessment of decay depth, cracks, and proximity to the nerve.
Local anesthesia
Comfortable numbness for the tooth and surrounding gum during preparation.
Caries removal & cavity preparation
Excavation of soft decay and shaping of walls for strong, retentive composite placement.
Isolation & bonding
Rubber dam or alternatives to keep the field dry; etchant and adhesive for reliable bond to enamel and dentin.
Shade selection & layering
Tooth-colored composite placed in increments and cured to reduce shrinkage and mimic natural optics.
Occlusal adjustment
Fine-tuning contacts and bite marks so the restoration does not feel “high.”
Finishing & polishing
Smooth surface to reduce plaque retention and blend margins with enamel.
Post-op instructions
What to expect as anesthesia wears off and when to call if sensitivity persists.
What to Expect
Diagnosis & consent
Explain findings, alternatives (including amalgam where appropriate), and the planned steps.
Anesthesia & isolation
Numb the area and isolate the tooth for moisture control — critical for bonding.
Remove decay & prepare
Eliminate infected structure and refine the cavity shape for composite.
Bond & build composite
Apply adhesive, place and cure composite in layers, sculpt anatomy.
Adjust bite & polish
Check occlusion with articulating paper; polish to a smooth luster.
Frequently Asked Questions
Both can be effective. Composite is tooth-colored and bonded; amalgam can be very durable in high-load areas. We recommend based on cavity size, location, esthetics, and your preferences.
We shade-match before placement. Very white or stained teeth can be challenging; minor shade shifts can occur as the composite fully settles and as lighting changes.
Many last years with good care; large fillings or heavy grinding wear faster. Regular exams catch chipping or margin gaps early.
Mild cold sensitivity for days to weeks can happen, especially if decay was deep. Persistent or worsening pain should be reported — it may indicate nerve irritation.
Wait until numbness resolves to avoid biting cheek or tongue. We may suggest brief caution with very hard foods after large fillings.
When remaining tooth structure is thin, cusps are undermined, or cracks are present — a crown surrounds the tooth for strength.