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Myofunctional Appliance
“A functional appliance harnesses natural forces which it transmits to the teeth and alveolar bone in a pre-determined direction”. (White, Gardiner, Leighton)
BITE PLANES
These are extensions of acrylic base frame work
To CORRECT DEEP BITE
Upper Anterior Inclined Plane
ORAL SCREEN
- Hotz modification
- Screen with breathing holes
- Double oral screen
- Rehak’s modification
LIP BUMPER
Also called as Lip plumber
Maxillary lip bumper is also known as Denholtz appliance
LIP BUMPER IS USED FOR
- Correct the hyperactive mentalis
- Correct the minor crowding in lower anteriors
- Distalization of lower molars
- Anchorage augmentation
ACTIVATOR
SYNONYMS:
- Biomechanic working retainer
- Andersen appliance
- Nocturnal airway patency appliance.
- Norwegian appliance.
- monobloc
- bite jumping appliance
- kingsley—jumping the bite/ anterior inclined plane
- Holtz- vorbissplate
- Pierre robin—monobloc
- Viggo andersen—biomechanical working retainer/activator
- Haupal– norwegian appliance
- WUNDERER MODIFICATION-----CLASS III MALOCCLUSION
- PROPULSOR---MONOBLOC + ORAL SCREEN
BIONATOR
The bionator is a functional appliance introduced by “Balter's” in 1956.Tongue is the center of the reflex activity in the oral cavity.
The function and posture of the lips and cheeks are guided by two wire constructions,
- the palatal bar
- Labial bow with buccal extensions.
FRANKEL FUNCTIONAL REGULATOR
Classification of FR
THE TWIN BLOCK
The Twin Block is an effective removable appliance for correcting antero-posterior discrepancies in the late mixed or early permanent dentition
FIXED FUNCTIONAL APPLIANCES:
- The correction of Class II malocclusions by use of headgear, elastics, or removable functional appliances often fail to attract patient cooperation to a very significant extent.
- Fixed functional appliances minimize the need for such co-operation and attempt to maximize the predictability of results.
HERBST APPLIANCE
- The Herbst appliance is basically a fixed bite jumping device for the treatment of skeletal Class II malocclusions.
- The telescope mechanism (tube and plunger) is attached to "orthodontic bands, crowns, or splint
JASPER JUMPER
Interarch flexible force module allows patient greater freedom of mandibular movement than is possible with the original bite jumping mechanism of Herbst. Dr. James Jasper in 1987
The Eureka Spring
- Introduced by John De Vincenzo
- The main component of the Eureka spring is an open wound coil spring encased in plunger assembly
The churro jumper
- Introduced by Ridhardo Castanon, Mario S Valdes and Larry White.
- The Churro Jumper furnishes orthodontists with an effective and inexpensive alternative force system for the anteroposterior correction of class II and class III malocclusions.
MCQS
1. A patient is involved in chronic mouth breathing, the clinical examination of patient reveals
a) Convex profile, long faceb) Concave profile, long face
c) Convex profile, short face
d) Concave profile, short face
Answer – A
The type of malocclusion associated with mouth breathing is called long face syndrome or classical adenoid face and narrow ( Dolichocephalic and leptoprosopic) face short and flaccid lip constricted upper arch and anterior marginal gingivitis are the features
