Coloured photograph and typodont showing a functional appliance
This is a Clark’s twin block
Be careful with labial bow as it can retrocline upper incisors, the acrylic baseplate may need reducing by the orthodontist
Blocks usually 6-7mm in height at 70-d
1 of 7
d
Colour photograph of a set of typodont wearing a functional appliance
Acrylic capping on lower incisors to stop proclination
Possibly modified Clark’s twin block
Be careful with labial bow as it can retrocline upper incisors, the acrylic baseplate may ne
2 of 7
f
Coloured photograph demonstrating a patient wearing a reverse Clark's twin block
This is a two‐piece functional appliance.
It works in roughly the same way as a Clark’s twin block as used in a class II case; however, a slightly different rule applies.
The
3 of 7
f
HERBST
DESCRIPTION
Developed in 1905 by a German orthodontist called Dr Emil Herbst.
The best advantage of this appliance is that it is non‐compliance dependent: because it is fixed to the
teeth, even better tolerated as it is less bulky than the twin b
4 of 7
f
Frankel appliance
Rolf Frankel developed the Frankel appliance in the 1950s
The Frankel is the only completely tissue‐borne appliance, meaning it is only retained in the mouth by the soft tissues.
There are three types of functional regulator:
FR1 to trea
5 of 7
f
Frankel appliance
Rolf Frankel developed the Frankel appliance in the 1950s
The Frankel is the only completely tissue‐borne appliance, meaning it is only retained in the mouth by the soft tissues.
There are three types of functional regulator:
FR1 to trea
6 of 7
f
Coloured photograph showing study models with a fixed rapid maxillary expansion appliance with bands on the 6s and 4s
This is used to expand the maxilla with a hyrax screw and breaks midline maxillary suture in young patients when it has not fused yet
Can
7 of 7
Other cards in this set
Card 2
Front
d
Back
Colour photograph of a set of typodont wearing a functional appliance
Acrylic capping on lower incisors to stop proclination
Possibly modified Clark’s twin block
Be careful with labial bow as it can retrocline upper incisors, the acrylic baseplate may ne
Comments
No comments have yet been made