Oral Screen And Mixed Dentition Appliance
“What is an oral screen in orthodontics?”
Modifications of Oral Screen
- Oral screen with breathing holes
- Breathing holes are placed on labial aspect of oral screen.
- Button with a string attached to it is given on lingual aspect of oral screen.
- Patient is told to do exercise by pulling string through the breathing hole.
- Oral screen in open bite
- An acrylic projection is attached to oral screen so that tongue remains away from dentition due to the acrylic projection.
“Types of oral screens used in orthodontics”
- Hotz modifications
- Oral screen is fabricated with a metal ring which is projected between upper and lower lips.
- Rehak modification
- Oral screen is fabricated with a nipple which usually projects outwards.
- Nipple is retained by the lips. So that the natural sucking movements enhances the effects of oral screen.
“Mixed dentition appliances for habit correction”
- Double oral screen
- In this oral screen is modified in such a way that there is an additional screen attached to it lingually by two 0.9 mm thick wires that run through the bite in lateral incisor area.
- Used in treatment of tongue thrusting.
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