Fixed Appliances
“What are fixed appliances in orthodontics and why do they matter?”
Write short note on parts of fied appliances.
Or
Write short note on components of fied appliances.
Or
Write short note on components of fied orthodontic appliances.
Or
Write short note on various active and passive components of fixed orthodontic appliances.
Answer.
Passive Components
Bands
“Early warning signs of issues with fixed appliance usage”
These are the thin strips of stainless steel which are adapted to the contour of tooth to which other orthodontic attachments are welded or soldered. Examples are:
- Buccal tubes: They hold the arch wires and inner bow of facebow attachment.
- Lingual sheath: They receive and attach the lingual arch wire.
- Molar hooks, lingual buttons and cleats: They engage elastic bands and modules.
“Understanding the role of fixed appliances in orthodontic treatment”
Bands are mainly used for the posterior teeth.
Classification of Bands
- Based on Tooth Used
“Importance of studying fixed appliances for better orthodontic outcomes”
- Based on Fabrication
- Preformed: They are readymade in assorted sizes
- Custom made: They are made specially as per the requirement of patient. They are contoured by orthodontists using special pliers.
Brackets
- Force needed for the orthodontic tooth movement is transmitted from active components via brackets.
- Brackets have one or more slots that accept the wire.
“Common challenges in using fixed appliances effectively”
“Steps to explain different types of fixed appliances in orthodontics”
Lingual Attachments
- Fixed on the lingual aspect of teeth.
- Used for engaging elastics, e.g. lingual buttons, lingual deals eyelets, ball end hook.
Lock Pins
- Used to secure arch wire to brackets with vertical slots such as ribbon arch brackets.
- Usually made of brass.
- Various types of lock pins are stage I, stage II, stage III and T pins.
“Role of brackets and archwires in fixed appliance systems”
Ligature Wire
- Used to secure the archwire to the brackets.
- Made of soft stainless steel.
- Usually required for edgewise types of brackets.
Modules
- Modules are used to fix arch wire to bracket slot.
- Modules are the elastomeric rings that are used in the pre-adjusted edgewise technique.
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