Removable Orthodontic Appliance

Removable Orthodontic Appliance

Advantages of removable orthodontic appliance

• Removable nature of appliance make it possible for the patient to maintain good oral hygiene during treatment

• take less chair side time for orthodontics , as they are fibricated in labrotary

• Damaged appliances can be removed by patients .

• Apparently simple to fabricate, use and adjust. Hence require

minimal chair time

• Less orthodontic scars compared to fixed appliances such as

decalcification, caries under molar bands and white spots around
bonded brackets and gingivitis.


• Cost-effective

• Efficient to use for certain type of tooth movements

• Removable appliances are the appliances of choice in
the first stage of the correction of a posterior crossbite

• They are used commonly during mixed dentition for

treatment of a variety of interceptive procedures. If one
considers the factors of risk and the relationship between
work volume and effect, removable appliances deserve
preference.










Disadvantages
• Not effective with uncooperative patient

• Only treat the minor cases of malocclusion

• Only capable of tipping tooth movement

• Limited control over tooth movement

• Only certain types of malocclusion can be corrected.

• Tooth movement in three dimensions is not possible.

• May hinder with speech and eating

• Appliances may be lost or broken

• Residual monomer of acrylic resin may cause allergy and/or
irritation.

indications

• Incisor inclinition
• To treat arch individually
• Narrow arches
• Unilateral cross bite
• Single malpositioned teeth
• Bite correction
• Bad habits


indications
Incisor inclinition

Incisor proclinition

indications
Incisor inclinition

Incisor retroclination

indications

To treat arch individually

indications

Narrow arches

indications

Unilateral cross bite

indications

Single malpositioned teeth

indications

Bite correction

indications

• Tongue thrust

Contra-indications

Sever skeletal discrepancy

Contra-indications

Upper and lower arches correlation treatment

Contra-indications

Sever rotation

Contra-indications

Bodily tooth movement

Contra-indications

Vertical discrepancy

Contra-indications

Sever crowding

Contra-indications

Very dens bone

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