T-Functional Dental Orthodontic Appliances Medical stainless steel

APPLIANCE FOR MOUTH BREATHING

VESTIBULAR SCREENS

It is a simple FA that takes form of a curved shield of acrylic placed in labial vestibule

Vestibular screens can be used either to apply forces of the circumoral musculature or to relieve force from teeth

These can used for correction of mouth breathing

HOTZ MODIFICATION

The vestibular screen can be modified using a ring projecting outwards which is used for exercise </li></ul>

Frankel functional regulator Devpd by Rolf Frankel

Also called oral gymnastic appliance

It has two main treatment effects

1. It serves as a template against which the cranio facial muscle function

2. The appliance removes muscle forces in labial and buccal areas that restricts skeletal growth thereby providing an environment which enables skeletal growth

MODE OF ACTION

The following are effects of frankel appliance

Increase in saggital and transverse intra oral space

Increase in vertical space where appliance is kept free from posterior teeth

Mandibular protraction

Muscle function adaptation the pads and shield massage the blood vessels increase circulation

Shields loosen up the tight muscles and improve muscle tone

Frankels exercises or oral gymnastics

1. lips closed at all times

2. swallowing speaking etc becomes exercise while using the appliance

Types of frankel appliance

FR 1 : Class 1, class2 division 1 malocclusion

FR2 :Class2 division 1&2

FR3 :class3

FR4 :Open bite and bimaxillary protrusion

FR5 :They are functional regulator which incorporate head gear indicated in long face patients having a high mandibular plane angle and vertical maxillary excess

ACTIVATORS

Activators induces musculo skeletal adaptation by introducing a new pattern of mandibular closure

The appliance loosely fits in the mouth the pt has to move the mandible forward to engage the appliance this result in stretching of elevator muscles of mastication which starts contracting thereby setting up a myotactic reflex

This generates kinetic energy that cause

Prevention of further forward growth of the maxillary dento alveolar process

Movt of maxillary dento alveolar process distally

Reciprocal forward force on the mandible force is generated while sleeping and swallowing

NDICATIONS

CLASS2 division 1&2

Class 3 malocclusion

Class 1 open bite

Class1 deep bite

Before major fixed appliance therapy

For post treatment retention

Children with lack of vertical height

CONTRAINDICATIONS

Not used in class 1 with crowding by disharmony between tooth size and jaw size

In children with excess lower facial height

n children whose lower incisors are severely procumbent

In children with nasal stenosis

POST DELIVERY INSTRUCTION

Teach the patient to wear and remove the appliance in front of mirror

Should be worn 2-3 hours daily initially

When not in use keep in water

Any pain ,soreness etc report to the clinic

If no pain also report the clinic after 2 wks

Pt advised to maintain lip seal by conscious effort

Time charts should be given to record duration of wearing the appliance