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Orthodontic technology is a specialty of dental technology that is concerned with the design and fabrication of dental appliances for the treatment of malocclusions, which may be a result of tooth irregularity, disproportionate jaw relationships, or both. There are three main types of orthodontic appliances: active, passive and functional.
Tissue supported expanders allow the forces to be applied directly to the tissues of palatal mucosa instead of teeth. The most common type of tissue-borne expander is known as the Haas Appliance. This appliance was popularized by Andrew Haas in 1961. This appliance involves bands placed on maxillary first premolar and first molars on each side.
The fixed functional appliances have to be bonded to the teeth by an orthodontist. A removable functional appliance does not need to be bonded on the teeth and can be removed by the patient. A removable appliance is usually used by patients who have high degree of compliance with their orthodontic treatment.
It is a general rule to expand the maxilla to a point where the lingual cusp of maxillary molar teeth touch the buccal cusp of mandibular molar teeth. Studies done decades ago by Krebs [14] (1964), Stockfisch [15] (1969) and Linder Aronson [16] (1979) showed that about one-third to one-half of the expansion was lost before the expansion was ...
Skeletal and dental outcomes were similar between the two appliances, but girls showed better treatment responses than boys. [45] The Herbst appliance seen in Figure 28 offers better compliance than the Twin Block but comes at a higher cost due to its construction and the need for additional repair visits. [45] Herbst appliance was also ...
In this instance the headgear is attached to the molars, via molar headgear bands and tubes, and helps to draw the molars backwards in the mouth, opening up space for the front teeth to be moved back using braces and bands. Multiple appliances and accessories are typically used along with the headgear, such as: power chains, coil springs, twin ...
Braces can be either cosmetic or structural. Dental braces are often used in conjunction with other orthodontic appliances to help widen the palate or jaws and to otherwise assist in shaping the teeth and jaws. Braces are an orthodontic device. They are to make the teeth straight, and to correct problems in a person's bite.
Frankel appliance or Frankel Functional Regulator is an orthodontic functional appliance which was developed by Rolf Fränkel in 1950s for treatment to patients of all ages (more so for adults In Orthotropics). This appliance primarily focused on the modulation of neuromuscular activity in order to produce changes in jaw and teeth.
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