Principles of orthodontic therapy
The age for orthodontic therapy
Dentition till eruption of premolars
After eruption of premolars
Eruption of canines and second molars
Principles of orthodontic appliances
Regulating orthodontic appliance (functional)
Making use of growth – removable appliance
that enables the growth to the correct position
of jaw.
Diaphragma
Space maintainer
Activator – with active elements
Prevention in orthodontic
• Natural food admission (nursing)
• Removing of bad habits (sucking of thumb,
put the tongue between frontal teeth atc.)
• Mouth breathing
Principles of orthodontic appliances
• Active orthodontic appliaences
- active forces on the teeth
Removable (plates)
Fixed (brackets, rings, arch)
Movement of teeth - bodily
Orthodontic extraction
• In there is no place for the correct position of
teeth
Prophylactic extractions
Therapeutic extractions
Orthodontic surgery
• Osteotomy
• Ostectomy