Smile Audit Find a dentist Outcomes Explorer Cost checker Methodology For dentists
← All conditions
~25% of restorations fail within 5yr

⚙️ Lost Filling or Crown

A previous filling or crown has come loose or broken, leaving the underlying tooth exposed and at risk for decay and fracture.

Information, not diagnosis. These are evidence-informed, population-level estimates drawn from the peer-reviewed literature and professional-body guidance — educational ranges, not results quoted from a single study, and not a prediction for your case (California AB 3030). AI-assisted clinical content is reviewed by our Benchmark Council (California SB 1120). Always confirm treatment recommendations with a licensed dentist.

Treatment pathways & outcomes

What typically happens with each treatment choice over time, based on clinical evidence — not individual cases.

1-year outcomes

No treatment / Temporary seal only

58%

Exposed tooth structure is prone to rapid secondary decay.

What it means: Rapid secondary decay and sensitivity.

Randomized controlled trial · Evidence-informed estimate — restorative RCTs on unrestored/temporized tooth structure

5-year outcomes

Immediate replacement restoration

90%

Successful restoration with no decay progression in most cases.

What it means: Tooth preserved; normal function restored.

Meta-analysis · Evidence-informed estimate — replacement-restoration survival meta-analyses

10-year outcomes

Immediate replacement restoration

82%

Good restoration longevity with some re-treatment expected over a decade.

What it means: ~20% may require re-treatment by 10 years.

Meta-analysis · Evidence-informed estimate — 10-year restoration survival meta-analyses

Methodology

Public outcomes are shown only where the direction is supported by high-tier evidence — Cochrane systematic reviews, randomized controlled trials, and meta-analyses. We report the untreated ("do nothing") branch alongside active treatment. Each figure is an evidence-informed, directional estimate consistent with the peer-reviewed literature and professional-body guidance (Cochrane Oral Health, ADA, AAE, AAP, AAOMS) — not a number quoted from one specific study — and is reviewed by our Benchmark Council. Estimates are population-level and may not apply to your individual case.

Find a dentist near you

© 2026 Smile Mentors Inc. · Reviewed by our Benchmark Council of licensed US dentists · Information, not diagnosis