Atypical extraction of maxillary central incisors
This case report describes a Class I crowded malocclusion with an ankylosed maxillary central incisor that was in infraocclusion and labially displaced. The patient had wide maxillary teeth, and the…
Orthodontics
Facial profile preferences: Differences in the perception of children with and without orthodontic history
Introduction Improved facial esthetics can be fully achievable only if facial preferences of the treated group are known. We hypothesized that facial profile perception and preferences could be influenced by…
Meeting announcements
AAO Annual Sessions May 13-17, 2011 Chicago, Ill May 4-8, 2012 Honolulu, Hawaii May 3-7, 2013 Philadelphia, Pa American Dental Association Annual Session October 9-12, 2010 Orlando, Fla www.ada.org American…
In-vivo von Mises strains during Invisalign treatment
Introduction The Invisalign (Align Technology, Santa Clara, Calif) force delivery system has not been investigated. Since forces are related to the strains developed on the aligner surface, the behavior of…
Palatal expansion in a patient with solitary median maxillary central incisor syndrome
The objective of this article was to report a clinical case of a patient with solitary median maxillary central incisor syndrome. He was treated with rapid maxillary expansion and evaluated…
Effect of JPEG2000 compression on landmark identification of lateral cephalometric digital radiographs
Introduction As digital imaging improves and digital cephalometric radiography becomes more prevalent, the need for digital storage space and transmission speed will increase. Compression of the image files is 1…
Effect of mechanical properties of fillers on the grindability of composite resin adhesives
Introduction The purpose of this study was to investigate the effect of filler properties on the grindability of composite resin adhesives. Methods Six composite resin products were selected: Transbond XT…
Influence of cigarette smoke condensate on cariogenic and candidal biofilm formation on orthodontic materials
Introduction An experimental analysis was made to quantify the adherence rates and the biofilm formation capacity of Streptococcus mutans ATCC25175 and Candida albicans SC5314 on orthodontic material surfaces in the…
Long-term stability of anterior open-bite treatment by intrusion of maxillary posterior teeth
Introduction Anterior open bite results from the combined influences of skeletal, dental, functional, and habitual factors. The long-term stability of anterior open bite corrected with absolute anchorage has not been…
Loss of surface enamel after bracket debonding: An in-vivo and ex-vivo evaluation
Introduction The objective of this study was to evaluate the surface enamel after bracket debonding and residual resin removal. Methods Thirty patients (female, 20; male, 10; mean age, 18.4 years)…
Combined aging effects of strain and thermocycling on unload deflection modes of nickel-titanium closed-coil springs: An in-vitro comparative study
Material and methods Ninety NiTi-based closed-coil springs were used, 30 of each of the following types: (1) Nitinol (code 146-150, 3M Unitek, Monrovia, Calif), (2) Ni-Ti (code 222-5612, Ormco, Glendora, Calif),…
Cone-beam computerized tomography evaluation of the maxillary dentoskeletal complex after rapid palatal expansion
Introduction Rapid palatal expansion (RPE) is routinely used to correct transverse deficiencies in the maxilla, but its effects on the dentoalveolus are uncertain. The purpose of this study was to…
Influence of decontamination procedures on shear forces after contamination with blood or saliva
Introduction Despite rapid development in adhesive technology, contamination of bonding surfaces remains a major problem. The aims of this study were to evaluate the influence of contamination on bond strength…
News, comments, and service announcements
ABO names new director During the 110th Annual Session of the American Association of Orthodontists (AAO) in Washington DC, the American Board of Orthodontics (ABO) welcomed Dr Chun-Hsi Chung of…
Handbook of orthodontics
Reviewed by Alex Jacobson The introductory chapters (1 and 2) of this book discuss and describe in considerable detail the various facets of occlusion and malocclusion, and the postnatal development…
Evaluation of computer-aided learning in orthodontics
Introduction Studies of computer-aided learning (CAL) in orthodontics have documented both objective and subjective outcomes; however, to date, no studies have attempted to correlate these 2 outcome measures. Methods The…
Getting cold feet
A patient goes to an orthodontist. She is unhappy with the treatment and decides to sue the orthodontist. She still needs the orthodontic treatment continued, so she goes to another…
Editor’s Comment and Q&A
Introduction Anterior open bite results from the combined influences of skeletal, dental, functional, and habitual factors. The long-term stability of anterior open bite corrected with absolute anchorage has not been…
Treatment effects of the light-force chincup
Introduction The objective of this study was to evaluate the effectiveness of the light-force chincup appliance in correcting the skeletal and dentoalveolar components of Class III malocclusion compared with an…
Editor’s Comment and Q&A
Introduction The objective of this study was to evaluate the surface enamel after bracket debonding and residual resin removal. Methods Thirty patients (female, 20; male, 10; mean age, 18.4 years)…
