What is Invisalign Candidacy Score?
Invisalign candidacy is a clinical judgment about whether clear aligners will move your teeth predictably toward your alignment goal in a reasonable timeline. It balances case complexity (how much movement is needed) against compliance (whether you will wear the aligners 20 to 22 hours a day) and budget. This tool surfaces the signals; an in-person exam confirms candidacy.
The Formula
Lean Toward Invisalign = Mild to Moderate Case + Strong Compliance + Cosmetic Priority
Severe crowding, skeletal bite correction, or low compliance shift the lean toward traditional braces; very young children or mixed dentition often lean toward braces or a consult.
Worked Example
A 32-year-old with mild crowding, no extractions expected, a clear timeline of about 12 months, confident about wearing aligners daily.
- Goal: mild crowding, scores toward Invisalign
- Complexity: no extractions expected, scores toward Invisalign
- Lifestyle: confident wearing aligners 20 to 22 hours daily, scores toward Invisalign
- Age and timeline: adult, 12 month preference, scores toward Invisalign
📌 The verdict leans clearly toward Invisalign with an estimated 12 to 18 month timeline. A consult confirms with an actual scan.
Why This Matters
Avoid the wrong starting commitment
Beginning aligner treatment for a case that needs braces wastes 6 to 12 months and several thousand dollars before the redirect. A quick candidacy check up front prevents that.
Compliance is the silent variable
Aligner cases stall when wear time slips below 20 hours per day. Honest self-rating on lifestyle is the highest-leverage signal in this assessment.
Retention is part of the treatment
Teeth tend to shift back toward their original position after active alignment ends. A bonded or removable retainer worn as directed is not optional; skipping retention wastes the investment in the active phase.
Common Mistakes
❌ Choosing based on aesthetics alone
Clear aligners look better day to day, but a case that genuinely needs fixed brackets ends up taking longer and costing more if started on aligners.
❌ Underestimating compliance requirements
Aligners only work when worn. Patients who eat or snack frequently throughout the day and rarely put aligners back in stall their own treatment.
❌ Skipping refinement trays to finish faster
Many Invisalign cases require 1-3 rounds of refinement trays after the initial set to close small remaining gaps. Ending treatment early to save time often leaves the bite incomplete and increases relapse risk.
Industry Benchmarks
| Category | Good | Average | Poor |
|---|---|---|---|
| Treatment time for mild cases | 12-18 months | 15-20 months | 24+ months due to compliance |
| Compliance threshold | 22 hours wear daily | 20-22 hours | Under 20 hours |
| Cost range (US) | $4,000-6,000 | $5,000-7,000 | $7,000+ with refinements |
Source: American Association of Orthodontists Patient Census 2025
Benchmark data sourced from American Association of Orthodontists Patient Census 2025.