Expansion Screw Appliance || Setting an Expansion Screw in a Orthodontic || Expansion Screw..

Hi,
I m Nughman Haider
Dental technician
Work at government hospital
And 2nd time jobs on dental laboratory
I will try to easy method of lab procedures share with friends.


.............

#Expansion#Screw#Orthodontic#

................

What is the function of Expansion Screw?

Expansion screws The expansion screw is a very small metallic appliance which may be designed to move a single tooth or a group of teeth or the skeletal bases as required. This screw as a source of force together with the acrylic segment of the plate effect the teeth and the alveolar process.

How do you active Expansion Screw?

So I'm putting the key in the little hole there and one quarter turn is where you put it there and you move it there that's one quarter turn and you do that too to both screws.

What is the pitch of Expansion Screw?

Removable appliances

The labial bow should be passive. When expansion occurs the bow becomes activated. • The majority of the expansion appliances have a pitch of 1 mm. A full turn is achieved with four turns of the key.

Please subscribe my channel
Please comment for suggestions
Thank you