Effects of thread shape on the pullout strength of miniscrews
Introduction The aim of this study was to determine the effects of variations in thread shape on the axial pullout strength of orthodontic miniscrews. Methods A total of 35 miniscrews,…
Mandibular dimensions of subjects with asymmetric skeletal Class III malocclusion and normal occlusion compared with cone-beam computed tomography
Introduction The purpose of this study was to use cone-beam computed tomography to compare mandibular dimensions in subjects with asymmetric skeletal Class III malocclusion and those with normal occlusion. Methods…
Residents’ journal review
Statistical modeling of lip movement Popat H, Zhurov AI, Toma AM, Richmond S, Marshall D, Rosin PL. Statistical modelling of lip movement in the clinical context. Orthod Craniofac Res 2012;15:92-102…
When less might be more
Your treatment of Susan, your daughter’s 13-year-old classmate, finished beautifully. You had predicted the 2 mm diastemata that remains distal to the undersized maxillary lateral incisors, so the family was…
You might miss something obvious
One of my best referring general dentists once asked me to evaluate his 34-year-old receptionist. She did not have a complicated malocclusion, just a few malaligned teeth and a slightly…
Author’s response
Thank you for your letter and your interest in our article. The first question raised, regarding the amount of crowding present before treatment, might not add a significant value to…
Question about relapse of corrected deepbites
I would like to congratulate Dr Derek Pollard et al for their article in the April 2012 issue (Pollard D, Akyalcin S, Wiltshire WA, Rody WJ Jr. Relapse of orthodontically corrected…
Online only abstract
Unilateral maxillary molar distalization with zygoma-gear appliance Dogan Kilkis, Mehmet Bayram, Mevlut Celikoglu, and Metin Nur. Am J Orthod Dentofacial Orthop 2012;142:e1-e7 The aim of this study was to present…
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…
