Lingual arch space maintainer
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Transcript of Lingual arch space maintainer
Lingual Arch Space Maintainer
Presented by : Rahaf Najjar
Definition:Fixed, passive, non functional space
maintaining appliance.Bilateral mandibular appliance.
Used to control:1.Antero-posterior tooth movement 2.Arch perimeter distortion
Indications:Bilateral loss of single / multiple 1ry lower
molars, after eruption of lower incisors.
Minor movement of anterior teeth
Maintenance of leeway space
Contraindications:Before the eruption of permanent lower
incisors.
Disadvantages Advantages1) doesn't prevent extrusion
of opposing teeth.2) High chance of appliance
distortion by tongue force.3) Can promote decay in pts
with bad OH.
1) Allow eruption of permeant without interference.
2) Not easily displaced.3) Easy to maintain good OH.4) Can be modified and used
as space regaining appliance.
5) Patients comfort.
Parts of the Appliance:2 bands in permeant 1st molars/ rarely in
2nd deciduous molars (E’s).Stainless steel wire.The wire is soldered to the bands.
Fabrication:Bands are adapted to the molars.
A pick up alginate impression is taken.
prefabricated wire placed or soldered to the band or can be custom made in lab
Wire should contact cingulum of mandibular incisors slightly above gingival papillae .
Should lie on gingival third of primary molar
Should rest at middle third of banded molar
Modifications:Auxiliary springs
incorporated to bring about minor individual tooth movement
Looped lingual arch
3D® Lingual Arch:This appliance allows for a set-up of a more
positive anchorage for a variety of treatment functions. The Lingual Arch plugs into the lingual tube and is available in eight sizes.
The Pedo Partial Appliance:Fabricated with a lingual arch soldered to bands
and pedo teeth in acrylic. Each tooth is reinforced to prevent breakage.
References: Paul S. Casamassimo DDS MS . Pediatric Dentistry: Infancy
through Adolescence, 5th edition https://www.rmortho.com/products/3d-lingual-arch/ Angus C. Cameron BDS. Handbook of Pediatric Dentistry,
4th edition Jeffrey A. Dean DDS MSD. McDonald and Avery Dentistry
for the Child and Adolescent, 9th Edition