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…
