Methods for managing 3-dimensional volumes
The introduction of 3-dimensional (3D) volumetric technology and the massive amount of information that can be obtained from it compels the introduction of new methods and new technology for orthodontic…
Three-dimensional analysis of maxillary protraction with intermaxillary elastics to miniplates
Introduction Early Class III treatment with reverse-pull headgear generally results in maxillary skeletal protraction but is frequently also accompanied by unfavorable dentoalveolar effects. An alternative treatment with intermaxillary elastics from…
Three-dimensional dental measurements: An alternative to plaster models
Introduction The aim of this study was to compare the accuracy of dental measurements taken with calipers on plaster dental casts and those from computed tomography scans of the dentition…
Cephalometric and electromyographic study of patients of East African ethnicity with and without anterior open bite
Introduction A review of the literature showed that there are disturbances of muscle activity and tongue function in patients with anterior open bite (AOB). However, most studies have had white…
Mandibular “tripod” advancement of a Class II Division 2 deepbite malocclusion
This case report describes the treatment of a 25-year-old woman with a Class II malocclusion, secondary to mandibular skeletal deficiency, and mild overclosure. Inferior surgical repositioning of the maxilla is…
Directory: AAO Officers and Organizations
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Effects of ultrasonic, electric, and manual toothbrushes on subgingival plaque composition in orthodontically banded molars
Introduction Orthodontic appliances hinder mechanical plaque control. In this study, we evaluated the effect of self-performed supragingival plaque removal with ultrasonic, electric, and manual toothbrushes on subgingival plaque composition in…
Meeting announcements
AAO Annual Sessions April 30-May 4, 2010 Washington, DC May 13-17, 2011 Chicago, Ill May 4-8, 2012 Honolulu, Hawaii April 26-30, 2013 New York, NY American Association of Orthodontists April…
In-vitro study of the cellular viability and nitric oxide production by J774 macrophages with ceramic, polycarbonate, and polyoxymethylene brackets
Introduction Studies show that ceramic brackets are chemically inert in the oral cavity, whereas polycarbonate and polyoxymethylene brackets can degrade, releasing bisphenol-A and formaldehyde, respectively. In addition to the traditional…
Morphologic quantification of the maxilla and the mandible with cone-beam computed tomography
Introduction The purpose of this pilot study was to use cone-beam computed tomography (CBCT) to determine the volumes of the maxilla and the mandible in subjects with skeletal Class I,…
Pulp vitality after rapid palatal expansion
Introduction Although it has been suggested that orthodontic treatment might lead to changes in the dental pulp, no clinical study has attempted to investigate the incidence of pulp necrosis after…
Mechanical properties of coated superelastic archwires in conventional and self-ligating orthodontic brackets
Introduction Coated archwires have been introduced to improve esthetics during orthodontic treatment. Our aim was to investigate the mechanical properties of coated superelastic archwires compared with conventional superelastic archwires with…
Proper mesiodistal angles for microimplant placement assessed with 3-dimensional computed tomography images
Introduction To provide information about placement sites and angulations of microimplants between tooth roots, we analyzed 3-dimensional computed tomography images from 25 patients. Methods The patients in the sample had…
Clinical and microbiological findings at sites treated with orthodontic fixed appliances in adolescents
Introduction Fixed orthodontic appliances can alter the subgingival microbiota. Our aim was to compare the subgingival microbiota and clinical parameters in adolescent subjects at sites of teeth treated with orthodontic…
Pretreatment characteristics associated with orthodontic treatment duration
Introduction Pretreatment characteristics can assist orthodontists in accurately estimating treatment duration. Methods This case-control study identified 400 patients, 9 to 18 years of age. Short treatment duration was 20 months…
Survival analysis of orthodontic mini-implants
Introduction Survival analysis is useful in clinical research because it focuses on comparing the survival distributions and the identification of risk factors. Our aim in this study was to investigate…
Apical root resorption in orthodontic patients with en-masse maxillary anterior retraction and intrusion with miniscrews
Introduction The purposes of this retrospective study were to investigate the apical root resorption of maxillary incisors in orthodontic patients with en-masse maxillary anterior retraction and intrusion with miniscrews and the factors…
Longitudinal changes in mandibular arch posterior space in adolescents with normal occlusion
Introduction The purpose of this study was to investigate the changes of available mandibular space in the posterior dental arch of teenagers from 13 to 18 years old. Methods Longitudinal…
Results of a survey-based study to identify common retention practices in the United States
Introduction The purpose of this descriptive study was to use a carefully constructed, pilot-tested survey instrument to identify the most common orthodontic retainers and retention protocols prescribed in the United…
