lingual holding arch space maintainer
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Transcript of lingual holding arch space maintainer
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Lingual Holding Arch Space Maintainer
• Presented by:
Jigyasha Timsina
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Contents
• Introduction • Indication and contraindication• Advantages and disadvantages• Fabrication • Modification • Patient Instruction
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• Space maintaining appliance
• Bilateral ,Non functional ,Passive mandibular arch appliance
• Fixed type of space maintainer
• Controls 1.Antero-posterior tooth movement 2.Arch perimeter distortion
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CONTRAINDICATION
Before the eruption
of mandibular incisors
INDICATIONS
Bilateral loss of posterior teeth
Minor movement of anterior teeth
Maintenance of leeway space
Space regaining
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Advantage
Many modifications
are possible
Can also be used to regain space
Disadvantage
Construction is difficult
Chances of distortion
of appliance by tongue pressure
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• Consists of :
1.round stainless steel or precious alloy
wire (0.32 to 0.40 inches in diameter)
2.molar bands -most commonly on
permanent first molar rarely second
deciduous molar
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•
Wire soldered or welded to the band
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Fabrication
Bands are adapted to the most posterior tooth remaining on the arch
A pick up alginate impression is taken.
pre fabricated wire placed or soldered to the band or can be custom made in lab
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• 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
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Wire should have 3-4 mm
contact with the band to provide long solder joint
Konstantinos et al suggested giving 2 omega bands in canine region.
Original design consisted of 2 inch adjustment loops so as to allow for adjustment of length
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• Passivation
achieved by heating the wire to dull brownish appearance
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MODIFICATIONS
• Auxiliary springs incorporated to bring about minor individual tooth movement
• Looped lingual archwire
• Ellis loop lingual archwires
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Instruction to the patients
• Brush teeth at least 2 times daily. • Use a water pick or floss to remove food
caught underneath the appliance. • Contact if bands come loose or anything
breaks or wire gets bent.• Warm salt water rinses for sores. • 'Rescue' wax for bands until cheeks get
used to new appliance
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References
• Textbook of Pediatric Dentistry
-Nikhil Marwah
• Text book of Pedodontics
-Shova Tandon
• Internet sources
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