Theme notesGrowth & space
Theme notesGrowth & space
Growth, eruption & space
Timing is part of the treatment. Diagnose the developmental problem, explain whether intervention now helps, and plan review through growth.
Tooth shorthand in these pathways: D means a primary first molar, E a primary second molar, and 6 a first permanent molar. These are not the Universal tooth letters used in the case library.
Remember
Stage → space → shift → sequence.
Key points
Assess dentition stage, eruption, occlusion, habits, function, and targeted records.
Developing dentition (PDF opens in a new tab)Early diagnosis does not automatically require early treatment; consider self-correction, progression, cooperation, and expected benefit.
Developing dentition (PDF opens in a new tab)Answer aloud
Does early loss of a primary molar automatically require a space maintainer?
No. Consider tooth/site, elapsed time, successor development, available space, occlusion, hygiene, cooperation, and follow-up.
Developing dentition (PDF opens in a new tab)Which clinical findings change the treatment plan for a crossbite?
Distinguish dental, functional, and skeletal causes. A functional shift may favor early correction; skeletal or asymmetric patterns need broader planning/referral.
Developing dentition (PDF opens in a new tab)Compare space maintainers by lost tooth
Scroll across to view all columns
| Tooth lost | Typical appliance | Review point |
|---|---|---|
| Primary incisor | Fixed Groper appliance or a removable partial denture | Replace for esthetics or speech, not space; check the successor first |
| First primary molar (D), one side | Band and loop on the E; crown and loop if the E needs a crown anyway | Remove once the first premolar erupts |
| Second primary molar (E), first permanent molar erupted | Band and loop from the 6 to the D | Remove once the second premolar erupts; lower bilateral losses switch to a lingual holding arch |
| E lost before the 6 erupts | Distal shoe on the D | Avoid with IE-prophylaxis cardiac conditions or impaired healing/host defense; unsuitable with poor hygiene/cooperation, inadequate abutments, or absent 6; convert to a noninvasive maintainer once the 6 erupts |
| Both sides, lower arch | Bilateral bands and loops before incisors erupt; lingual holding arch after | Lingual arch holds leeway space once permanent incisors have erupted |
| Both sides, upper arch | Nance appliance, or a transpalatal arch if one side’s anchorage is intact | Nance buttons can irritate or embed in palatal tissue; a transpalatal arch anchors molars less strongly |
Every appliance needs an indication first, then surveillance of cement, fit, hygiene, and eruption. A distal shoe penetrates tissue; after the first permanent molar erupts, replace it with a noninvasive appliance chosen for the remaining dentition (not necessarily a band and loop). The tooth-by-tooth table gives conventional examples, not automatic AAPD assignments.
Developing dentition (PDF opens in a new tab)Quick decisions
Does early diagnosis of an orthodontic problem automatically require early treatment?
does not automatically mean early treatment
Decision pathways
Sources
- Management of the Developing Dentition and Occlusion in Pediatric Dentistry, Latest revision 2024