Question 153 · LDEK · Fixed appliances
Which appliances are used to widen the palatal suture in the permanent dentition?
- A. Biedermann appliance, Haas appliance, Isaacson appliance, Derichsweiler appliance according to Karłowska.
- B. Haas appliance, Derichsweiler appliance, Nance appliance, Headgear.
- C. Haas appliance, Herbst appliance, Nance appliance, Delaire mask.
- D. Biedermann appliance, Herbst appliance, Jones-Jig, Delaire mask.
- E. Derichsweiler appliance according to Karłowska, Haas appliance, Herbst appliance, Lip-Bumper.
Hint
All four appliances in the right set are fixed screw or spring expanders anchored on bands.
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