SVED Bite Plane:
It is a modification of anterior bite plane, where the acrylic base is extended on to the incised 1/3 of the labial surface of upper anterior teeth to prevent their Proclination. It also helps to reinforce the anchorage.
Lower inclined bite plane or Catalans appliance:-
Catalans appliance was first introduced by Catalan more than 150 years ago. This appliance is of great value in correcting of cross bite of young patients, whose permanent molars have not erupted yet & the deciduous molars are also lost due to extractions. In such a situation when anchorage for removal orthodontic appliance is not available from any source.
- Catalans appliance is a Myofunctional appliance.
- It is a modification of the anterior bite plane.
- This is used on lower anterior teeth for the correction of developing cross bite.
- This appliance makes use of functional muscle force & guides the erupting tooth into normal position.
Indication of Catalans appliance:-
- Where anterior cross bite is developing with a good degree of over bite & there is sufficient space for erupting teeth.
Contraindication of Catalans appliance:-
- Cross bite due to true mandibular prognathism.
- Lack of over bite.
Types of inclined plane:-
- Cementation type
- Incisal capping with Adams clasp on 6/6
- Incisal capping with Lingual plate
- Incisal capping with Adams clasp on 6/6 and labial bow
Posterior bite plane:-
It is the extension of acrylic base plate over the occlusal surfaces of the posterior teeth.
Use of Posterior bite planes:-
- Posterior bite plane is used to get occluded clearance of tooth movement during correcting of anterior cross bite.
- It is formed by extending base plate so thickness should be just enough to clear the occlusion.
- For diagnosis of occlusal prematurity.
- Cases with TMJ pain dysfunction.
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