Space Maintainer Selection Calculator
Select the appropriate space maintainer type based on lost tooth location, child age, arch, and eruption timeline per AAPD guidelines.
Inputs
Results
Recommended maintainer type
1
Urgency level2
Expected wear duration (months)11
Follow-up interval (months)6
Estimated cost ($)$250
Space loss rate (mm/month)0.7
Space lost in 6 months without maintainer (mm)4.2
How to Use This Calculator
- Enter the child's age in months and select the Tooth lost (1 = primary 1st molar, 2 = primary 2nd molar, 3 = primary canine, 4 = primary incisor).
- Select the Arch (1 = maxillary, 2 = mandibular) and whether the loss is Bilateral (0 = unilateral, 1 = bilateral).
- Enter Months until successor eruption (estimate from radiograph) and whether the abutment tooth Needs a crown (0/1).
- Review the Recommended maintainer type: Band and Loop, Crown and Loop, Distal Shoe (for pre-eruptive 2nd molar), Lingual Holding Arch, Nance, TPA, or None needed.
- Note the Wear duration (months), Follow-up interval, Estimated cost, and Space lost in 6 months without a maintainer (mm) to support clinical decision-making.
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