How the amount of remaining tooth affects the restoration discussion and visit plan.
What each treatment covers
A filling replaces a localized area of missing tooth. A crown covers more of the visible tooth and can support a tooth when a large filling would leave too little natural structure. The ADA specifically notes crowns may help when there is not enough tooth left to hold a large filling.
Ask to see the limiting factor
Have the dentist explain the fracture, decay, old restoration or weakened cusp that drives the recommendation. A tooth with a small cavity is different from one with extensive prior work. Ask whether an intermediate restoration is possible and why it would or would not be appropriate for the tooth in question.
Compare the full treatment sequence
A crown may involve tooth preparation, an impression or scan, a temporary restoration and a final placement. A filling may be completed in a different sequence. Ask about the number of visits, temporary care and the possibility that deeper damage changes the plan once old material or decay is removed.
Evaluate the estimate
Request a written plan for the chosen option, including any core buildup, imaging or temporary restoration when applicable. Compare expected insurance treatment, not a generic price posted elsewhere. Both fillings and crowns appear in the practice's official service list; which protects your tooth is a clinical decision after examination.
Questions to ask
Does every large filling need a crown?
No. Remaining tooth structure, bite and the specific damage guide the recommendation.
Is a crown a substitute for root canal treatment?
Not when the pulp is infected; ask whether treatment inside the tooth is also needed.
What if the plan changes during care?
Ask the dentist to explain new findings and update the treatment and cost estimate before proceeding.