Lingual holding arch (space maintainer)researched

Quick facts

Field	Value
ID	OA-0159
Type	space_maintainer
Category	space_maintenance
Status	researched

Overview

OA-0159 is a space maintainer variant of the lingual holding arch. The lower lingual holding arch is a 0.036″ SS wire soldered to lower molar bands that prevents mesial molar drift after premature primary tooth loss. For comprehensive research including mechanism, leeway space preservation, fabrication variants (standard, drop, expansion, omega loops, 3D), and CFL product range, see:

→ Lingual holding arch Lingual holding arch

Common variants & modifications

• Standard LHA: straight 0.036" wire, bilateral soldered to molar

bands; no additional features

• LHA with Nance button: Nance acrylic button added for additional

upper anterior anchorage

• LHA with spurs/stops: small acrylic or wire stops added to

prevent mesial molar drift in specific tooth spaces

• LHA with tongue spur: spur element added for combined space

maintenance + habit deterrence

• Active LHA (spring-loaded): active version with coil springs to

uprighting or tip molars while maintaining arch

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Sources

• [Lingual Arch Variants in Space Maintenance —

AAPD](https://www.aapd.org/research/oral-health-policies--recommendations/)

• [Modified Lingual Arches for Space Management —

JCO](https://www.jco-online.com)

• [Lower Lingual Holding Arch — Rocky Mountain

Orthodontics](https://www.rmortho.com)

Research log

• 2026-06-10 — cross-referenced to OA-0310.