Smartphones to the rescue
Ten years ago I wrote an editorial entitled “Enhance learning with an audience response system” (Am J Orthod Dentofacial Orthop 2003;124:607). The Pacific Coast Society of Orthodontists (PCSO) had just…
Orthodontics
Oral epithelial cell reaction after exposure to Invisalign plastic material
Introduction Invisalign plastic aligners (Align Technology, Santa Clara, Calif) are used to correct malocclusions. The aligners wrap around the teeth and are in contact with gingival epithelium during treatment. The…
Space closure in the maxillary posterior area through the maxillary sinus
A common dilemma in adult orthodontic treatment is deciding how best to treat missing posterior teeth. One treatment option is to orthodontically close the space. But closure can be difficult,…
Accuracy and reproducibility of dental replica models reconstructed by different rapid prototyping techniques
Introduction Rapid prototyping is a fast-developing technique that might play a significant role in the eventual replacement of plaster dental models. The aim of this study was to investigate the…
Adult patient with hemifacial microsomia treated with combined orthodontics and distraction osteogenesis
Distraction osteogenesis is an alternative treatment option for patients with facial asymmetry and mandibular hypoplasia. New bone is formed between bone segment surfaces that are gradually separated by incremental traction….
Dentofacial effects of skeletal anchored treatment modalities for the correction of maxillary retrognathia
Introduction The aim of this clinical study was to investigate the skeletal, dentoalveolar, and soft-tissue effects of 2 skeletal anchorage rationales for Class III treatment compared with an untreated Class…
Tongue squamous cell carcinoma in young nonsmoking and nondrinking patients: 3 clinical cases of orthodontic interest
Oral squamous cell carcinoma traditionally affects older men who smoke and drink. A change in this profile has been reported because of an increased incidence in young nonsmoking and nondrinking…
Thirty-two-year follow-up study of Herbst therapy: A biometric dental cast analysis
Introduction The aim of this study was to analyze the very long-term effects of Herbst treatment on tooth position and occlusion. Subjects Fourteen patients from a sample of 22 with Class…
Nonextraction treatment with temporary skeletal anchorage devices to correct a Class II Division 2 malocclusion with excessive gingival display
The patient was a 22-year-old Japanese woman who complained of a gummy smile. She had several other orthodontic problems, including crowding of the maxillary anterior teeth, retroclination of the maxillary…
Introduction to observational studies: Part 1
As has been highlighted in previous articles of this column, randomized controlled trials (RCTs) command the highest level in the hierarchy of evidence among clinical studies. However, in some situations,…
