Most people expect a broken filling to be swapped for a new one, and often that is exactly what happens. Occasionally, though, the break turns out to be a sign that the tooth itself has changed. Before any plan, the dentist needs to see what fractured: only the restoration, a piece of enamel or cusp alongside it, or something deeper that has been building for a while.
Each finding leads somewhere different. A small defect in a sound filling can sometimes be repaired. A filling cracked through usually comes out and is replaced. When the tooth has lost a wall or cusp, or the nerve is involved, a filling alone may not protect it, and an onlay, crown, or root canal treatment could come into the conversation. A small piece does not rule out a large need.
Before travelling in from Caledon, give us a call. Tell us when it broke and whether the tooth aches, lingers after cold, or hurts to bite on, because those details help us plan the right length of visit. If a fragment came out, put it in a clean container instead of trying to reseat it. We will explain clearly what the tooth needs and why.