The purpose of the study was to find evidence of how different types of food consistency affect chewing motions, especially the forward, downward and sidewise extents of motion of the lower jaw. Nineteen individuals with intact tooth sequence, aged from 20 to 37 years, were asked to chew three types of food of different consistency (banana, bread, carrot). The motions of the lower jaw were reco...

Speech production involves some of the most precise and finely timed patterns of human movement. Here, in the context of jaw movement in speech, we show that spatial precision in speech production is systematically associated with the regulation of impedance and in particular, with jaw stiffness--a measure of resistance to displacement. We estimated stiffness and also variability during movemen...

Orthodontic treatment comprises different phases with unique characteristics and challenges. The orthodontic "finishing" phase is recognized for the multitude of details necessary to achieve an excellent result. In some cases, the finishing phase is very difficult, requiring the production of complicated biomechanical forces to reach a satisfactory orthodontic solution. A high percentage of the...

OBJECTIVE To evaluate the anteroposterior short-term skeletal and dental effects on Class II malocclusion in growing patients following treatment with functional appliances (activators or twin block), extraoral traction, or combination appliances (appliances with both functional and extraoral traction components), based on published data. MATERIALS AND METHODS A literature search was carried ...

For patients whose orthodontic problems are so severe that neither growth modification nor camouflage offers a solution, surgery to realign the jaws or reposition dentoalveolar segments is the only possible treatment. Surgery is not a substitute for orthodontics in these patients. Instead, it must be properly coordinated with orthodontics and other dental treatments to achieve good overall resu...

OBJECTIVE To provide an estimate of growth in Class III malocclusion by means of the analysis of a large population of males and females. MATERIALS AND METHODS The examined sample consisted of pretreatment lateral cephalometric records of 949 (492 females and 457 males) untreated Class III patients of Caucasian ancestry. Cephalometric dentoskeletal measurements at subsequent age periods in Cl...

OBJECTIVES To seek the views of adolescents with malocclusion about how the appearance and arrangement of their teeth affects their everyday life and to incorporate these views into a new Malocclusion Impact Questionnaire (MIQ). METHODS Semi-structured interviews were undertaken with a purposive sample of 30 young people (10-16 years) referred for orthodontic treatment to two dental teaching ...

visalign* technique1—par­ ticularly attachment designs that improve three­dimensional con­ trol of tooth movement—have resulted in new treatment strate­ gies for patients who need orthog­ nathic surgery.2­5 The Invisalign ClinCheck* can be used for diag­ nosis, visualization of treatment results, and sharing of informa­ tion with the patient and dental colleagues throughout treatment. Boyd has ...