• jaws
  • 2. Material and Method Salzmann in 1950 was the first to classify the underlying skeletal structure, and he stated that Skeletal Class I: Purely dental with the bones of the face and jaws being in harmony with one another and with the rest of the head. (stomaeduj.com)
  • Malocclusions may be coupled with skeletal disharmony of the face, where the relations between the upper and lower jaws are not appropriate. (wikipedia.org)
  • early 1900s
  • Intrusion, in orthodontic history, was initially defined as problematic in early 1900s and was known to cause periodontal effects such as root resorption and recession. (wikipedia.org)
  • molars
  • Class III: Mesiocclusion (prognathism, Anterior crossbite, negative overjet, underbite) In this case the upper molars are placed not in the mesiobuccal groove but posteriorly to it. (wikipedia.org)
  • This involves prevention of any eruption of posterior molars because their eruption would lead to mandible moving downwards and backwards which would cause worsening of a Class II malocclusion and increase in the lower facial height. (wikipedia.org)
  • The most favorable morphologic factors for serial extraction include class 1 malocclusion, a favorable morphogenetic pattern - one that does not change, a flush terminal plane or a mesial step relationship of the primary second molars, minimum overjet and minimum overbite. (wikipedia.org)
  • Orthodontic headgear will usually consist of three major components: Facebow: first, the facebow (or J-Hooks) is fitted with a metal arch onto headgear tubes attached to the rear upper and lower molars. (wikipedia.org)
  • elastic
  • The elastic wear can be worn from 12 to 23 hours a day, either during the night or throughout the day depending on the requirements for each malocclusion. (wikipedia.org)
  • temporomandibular
  • Unilateral crossbites can present with following features in a child Lower midline deviation to the crossbite side Class 2 Subdivision relationships Temporomandibular disorders A child with posterior crossbite should be treated immediately if the child shifts his mandible on closing which is often seen in a unilateral crossbite as mentioned above. (wikipedia.org)
  • tooth movement
  • Fixed orthodontic appliances aid tooth movement, and are used when a 3-D movement of the tooth is required in the mouth and multiple tooth movement is necessary. (wikipedia.org)
  • Orthodontic force-induced osteogenic differentiation and bone formation at tension sites play a critical role in orthodontic tooth movement. (readbyqxmd.com)
  • In the current study, we investigated the involvement of the GSK-3β/β-catenin signaling pathway, which is critical for bone formation during tooth movement. (readbyqxmd.com)
  • We established a rat tooth movement model to test the hypothesis that orthodontic force may stimulate bone formation at the tension site of the moved tooth and promote the rate of tooth movement via regulation of the GSK-3β/β-catenin signaling pathway. (readbyqxmd.com)
  • anchorage
  • The purpose of this retrospective study is to investigate the dentoalveolar and skeletal effects of two distalizing protocols featuring different anchorage systems used in patients with class II malocclusion: the MGBM system (skeletal anchorage) and Pendulum (intraoral anchorage). (springeropen.com)
  • Extraoral anchorage can be divided into 3 different types. (wikipedia.org)
  • dentofacial
  • Also known as dentofacial orthopaedic appliances, these appliances utilize the muscle action of the patient and responses of nervous system to produce orthodontic or orthopaedic forces. (wikipedia.org)
  • classification
  • Introduction: The orthodontic dental classification used datedes for more than 100 years. (stomaeduj.com)
  • Material and method: The main orthodontic classification systems for skeletal and dental relationship were reviewed. (stomaeduj.com)
  • Keywords: orthodontic malocclusion, skeletal classification, dental classification. (stomaeduj.com)
  • Thus, numerous attempts have been made to modify the Angle system or to replace it completely with a more efficient one, but Angle's classification continues to prevail mainly because of its simplicity and clarity. (wikipedia.org)
  • Alternative systems have been suggested by, among others, Simon (1930, the first three-dimensional classification system), Jacob A. Salzmann (1950, with a classification system based on skeletal structures) and James L. Ackerman and William R. Proffit (1969). (wikipedia.org)
  • discrepancy
  • In addition, because the samples that were measured had perfect malocclusion, any samples after performing Bolton Analysis, will yield a high discrepancy compared to Bolton ratios. (wikipedia.org)
  • Contraction
  • The raphe median plane passes through these two points at right angles to the F-H plane), transverse: Contraction or Distraction1. (stomaeduj.com)
  • dental
  • Introduction In 1930 Simon was the first to relate the dental arches to the face and cranium in the three planes of space: Frankfurt horizontal plane (F-H plane), also called (E-EP). (stomaeduj.com)