Authors’ response
A clinically useful measurement must be reproducible. Drs McNamara, Baccetti, and Franchi claim that the CVM method has high reproducibility. They claim interoperator (between each other) agreement of 98.6% and…
Orthodontics
Reproducibility of the CVM method: A reply
We read with obvious interest an article published online in October 2009 about the reproducibility of the cervical vertebral maturation (CVM) method (Gabriel DB, Southard KA, Qian F, Marshall SD,…
Authors’ response
Thank you for this opportunity to reply to Dr Katz’s letter, published in the January issue (Katz MI. Appearances count when industry underwrites research. Am J Orthod Dentofacial Orthop 2010;137:3-4),…
AAO research award winners recognized
The Council on Scientific Affairs (COSA) recently announced its selection of the best basic science and clinical research studies submitted by US and Canadian postgraduate orthodontic programs. Plan to hear…
Biomechanics of self-ligating brackets
One of the hottest subjects in town is the difference between self-ligating and conventional brackets, especially from the biomechanical point of view. We applaud the group from Edmonton, Alberta, Canada,…
Cranial base superimposition for 3-dimensional evaluation of soft-tissue changes
Introduction The recent emphases on soft tissues as the limiting factor in treatment and on soft-tissue relationships in establishing the goals of treatment has made 3-dimensional (3D) analysis of soft…
Mixed unilateral transposition of a maxillary canine, central incisor, and lateral incisor
A girl, aged 7 years 11 months, came for treatment with the chief complaint of lack of eruption of her maxillary right central and lateral permanent incisors. The radiographic analysis…
Treatment of a horizontally impacted mandibular canine in a girl with a Class II Division 1 malocclusion
When a patient has an impacted tooth, the timing of orthodontic treatment, the type of surgical procedure to expose the tooth, the orthodontic mechanics, and the potential problems vary depending…
Multiple bilateral impactions in an adolescent girl
This article describes a patient whose permanent canines and premolars had not erupted at age 14 years, although their root formation was complete, with closed apices. Surgical and orthodontic treatment…
Four curious cases of cone-beam computed tomography
Cone-beam computed tomography (CBCT) has become popular, and its many inherent advantages are indisputable. Nevertheless, CBCT is prescribed cautiously because the radiation dosage is higher than that of conventional radiography….
Considerations in the use of cone-beam computed tomography for buccal bone measurements
Cone-beam computed tomography (CBCT) has become a popular modality in research, but it can be misused and misunderstood. Several image quality, bone biology, and statistical factors must be considered before…
Directory: AAO Officers and Organizations
American Association of Orthodontists Annual Session April 30-May 4, 2010, Washington, DC 401 N Lindbergh Blvd, St Louis, MO 63141 (314) 993-1700 President , Robert J. Bray, Somers Point, NJ…
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…
Accuracy and reliability of tooth and root lengths measured on cone-beam computed tomographs
Introduction In this study, we evaluated the accuracy and reliability of tooth-length and root-length measurements derived from cone-beam computed tomography (CBCT) volumetric data. Methods CBCT scans were made of 7…
Accuracy and reliability of cone-beam computed tomography for measuring alveolar bone height and detecting bony dehiscences and fenestrations
Introduction The purpose of this study was to evaluate the accuracy and reliability of cone-beam computed tomography (CBCT) in the diagnosis of naturally occurring fenestrations and bony dehiscences. In addition,…
Soft-tissue changes after maxillomandibular advancement surgery assessed with cone-beam computed tomography
Introduction The purpose of this study was to quantify anteroposterior and transverse facial soft-tissue changes with respect to underlying skeletal movements after maxillomandibular advancements by using cone-beam computed tomography. Methods…
Accuracy of mesiodistal root angulation projected by cone-beam computed tomographic panoramic-like images
Introduction In this study, we tested the accuracy of the cone-beam computed tomography panoramic (pan)-like image in the projection of mesiodistal tooth angulations. Methods A plastic typodont with 28 teeth…
Oropharyngeal airway changes after rapid palatal expansion evaluated with cone-beam computed tomography
Introduction The aims of this retrospective study were to use cone-beam computed tomography (CBCT) to assess changes in the volume of the oropharynx in growing patients with maxillary constriction treated…
