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Managing the Leeway Space in Mixed Dentition Using a Passive Lingual Arch: A Systematic Review.
Alberto De Stefani1,2, Giovanni Bruno1,3, Valentina Montanari1
1Department of Neuroscience, School of Dentistry, University of Padova, 35121 Padova, Italy.
Dentistry Journal
|March 26, 2025
Summary
The passive lingual arch effectively preserves lower arch length and manages leeway space during mixed to permanent dentition transition. This orthodontic device aids in correcting crowding and preventing impaction, proving beneficial in clinical practice.
Area of Science:
- Orthodontics
- Pediatric Dentistry
Background:
- Dental crowding and premature deciduous tooth loss are common during mixed to permanent dentition.
- Managing leeway space is crucial for maintaining arch length.
Purpose of the Study:
- To systematically review the effectiveness of passive lingual arches in preserving lower arch length.
- To analyze the impact of passive lingual arches on permanent tooth positions and leeway space management.
Main Methods:
- Systematic literature review of PubMed, Web of Science, Scopus, and Cochrane Library.
- Inclusion of seven studies meeting predefined selection criteria.
- PICO table compilation for data analysis.
Main Results:
- Passive lingual arches preserve lower arch length during mixed to permanent dentition transition.
- Observed effects include permanent molar disto-inclination and incisor proclination, indicating effectiveness.
- Some studies noted prevention of molar and incisor mesio-inclination and lingualization.
Conclusions:
- Passive lingual arches are advantageous for mild anterior crowding and maintaining space after premature molar loss.
- This orthodontic device helps prevent permanent premolar impaction.
- Effective clinical application requires accurate diagnosis and a clear treatment plan.
