Severe complication of a bonded mandibular lingual retainer
Bonding a flexible spiral wire retainer to the lingual surfaces of all 6 anterior mandibular teeth is a commonly used type of retention. Complications are rare but can be serious…
Three-dimensional evaluation of changes in lip position from before to after orthodontic appliance removal
Introduction Our objectives were to develop a reproducible method of superimposing 3-dimensional images for measuring soft-tissue changes over time and to use this method to document changes in lip position…
Correlation of the arch forms of male and female subjects with those of preformed rectangular nickel-titanium archwires
Introduction This investigation was carried out to correlate the normal arch forms of male and female subjects derived mathematically by the beta function with commercially available preformed rectangular nickel-titanium archwires….
Tooth separation: A risk-free procedure?
This article reports the case of a 12-year-old patient with tooth extrusion, pain, gingival bleeding, and localized periodontitis near the maxillary second premolar. Despite probing and radiographic examination, it was…
Impaction of both maxillary central incisors and a canine
This case report describes the treatment of a 14-year-old adolescent patient who had 2 impacted maxillary central incisors with distoangular root dilacerations. He also had an impacted maxillary left canine,…
Angle Class III malocclusion treated with mandibular first molar extractions
A Class III malocclusion associated with dental asymmetry is a complex diagnostic and treatment problem in orthodontics. The goals of maintaining or improving the facial profile and achieving good function…
Orthodontic-restorative treatment as an option for biologic replacement of a maxillary central incisor: 5-year follow-up
The maxillary central incisor is the tooth most often affected by trauma, especially in the age range of 7 to 10 years, when high-impact sports are prevalent. The options for…
Archwire vibration and stick-slip behavior at the bracket-archwire interface
Introduction It is unknown whether or not intraoral vibrations affect stick-slip behavior at orthodontic bracket-archwire interfaces. In this study, we evaluated bracket-archwire stick-slip behavior as a function of ligation method…
Dental light curing and its effects on color perception
Introduction Light curing has become increasingly popular for orthodontic bonding, partly as a result of improvements in light-curing unit technology and higher light intensities. The aim of this study was…
Cone-beam computed tomography transverse analysis. Part I: Normative data
Introduction The application of cone-beam computed tomography (CBCT) in orthodontics ushered in a new era in 3-dimensional analysis that promises to provide more comprehensive understanding of craniofacial skeletal anatomy. That…
Association analysis of clinical aspects and vitamin D receptor gene polymorphism with external apical root resorption in orthodontic patients
Introduction Vitamin D is responsible for the regulation of certain genes at the transcription level, via interaction with the vitamin D receptor, and influences host immune responses and aspects of…
Three-dimensional interpretation of intercanine width change in children: A 9-year longitudinal study
Introduction The immutability of intercanine width has long been the subject of discussion. The aims of this study were to describe the longitudinal intercanine width changes of children from 6…
Contemporary Orthodontics, 5th ed
Dr William Proffit’s Contemporary Orthodontics , coauthored with Drs Henry Fields and David Sarver, has been used by most dental and graduate students as the standard orthodontic textbook. Since its…
In the beginning
In the beginning . . . The opening words of this month’s column are also the first words of the Old Testament. It is in the beginning that stories start….
Cluster-randomized controlled trials: Part 2
In the previous article, we discussed the clustering effects when data in clusters such as several teeth nested within patient clusters are correlated. We also introduced the intracluster correlation coefficient…
Management of the American Heart Association’s guidelines for orthodontic treatment of patients at risk for infective endocarditis
Introduction For over 50 years, the American Heart Association has made recommendations for the prevention of infective endocarditis. The first guidelines were published in 1955; since then, they have been…
Histomorphometric study of the periodontal ligament in the initial period of orthodontic movement in Wistar rats with induced allergic asthma
Introduction Asthma is a common systemic disease occurring in infancy and adolescence, time periods that could encompass orthodontic treatment. Asthma is an inflammatory disease; therefore, it might interfere with orthodontic…
Dental models made with an intraoral scanner: A validation study
Introduction Our objectives were to determine the validity and reproducibility of measurements on stereolithographic models and 3-dimensional digital dental models made with an intraoral scanner. Methods Ten dry human skulls…
Long-term stability of alveolar bone grafts in cleft palate patients
Introduction Many authors have examined the surgical bone treatment of cleft palate patients, but no study has emphasized the role of orthodontic therapy. The aims of this study were to…
Residents’ journal review
Presurgical nasoalveolar molding in cleft patients Suri S, Disthaporn S, Atenafu EG, Fisher DM. Presurgical presentation of columellar features, nostril anatomy, and alveolar alignment in bilateral cleft lip and palate…
