Survival analysis, part 1: Introduction
When time to an event (eg, how long until an event occurs?) is the main outcome of interest in a trial, the relevant data are often called survival data. The…
Orthognathic surgery: Principles, planning and practice
Orthognathic surgery: principles, planning and practice is a comprehensive, informative source for anyone treating a multiple-discipline patient. The authors comprehensively reviewed the history of orthognathic surgery, citing past contributors in…
Assessment of upper airway size after orthopedic treatment for maxillary protrusion or mandibular retrusion
Introduction The aim of this retrospective study was to find out whether different Class II treatments would affect the airway sizes of patients having maxillary protrusion or mandibular retrusion. Methods…
A simple and accurate craniofacial midsagittal plane definition
Introduction In this article, we aimed to establish an ideal definition for the craniofacial midsagittal plane (MSP) by first finding an optimal “plane of best fit” and then deriving a…
Immunity from what?
The court started its opinion by stating the following. This case presents a matter of first impression: whether the civil and criminal immunity applicable to physicians… under Virginia Code Sec….
Genome-wide association study for mandibular prognathism using microsatellite and pooled DNA method
Introduction The purpose of this study was to extend an association study from chromosome 1 to the whole genome (genome-wide association study) to find susceptibility loci of mandibular prognathism. Methods…
Root resorptions associated with canine retraction treatment
Introduction The hypothesis of this study was that multiple factors are dominant in causing external apical root resorption (EARR). The objective of this investigation was to better understand the clinical…
Influence of cortical bone thickness on miniscrew microcrack formation
Introduction The aim of this in-vitro study was to investigate the influence of cortical bone thickness on the amount of surface microdamage produced after insertion of orthodontic miniscrews (OM) in…
Three-dimensional assessment of soft tissue changes associated with bone-anchored maxillary protraction protocols
Introduction The aim of this study was to assess the 3-dimensional soft tissue changes in growing Class III patients with maxillary deficiency associated with 2 bone-anchored maxillary protraction protocols in…
Bone-anchored maxillary protraction therapy in patients with unilateral complete cleft lip and palate: 3-dimensional assessment of maxillary effects
Introduction The aim of this study was to 3-dimensionally assess the treatment outcomes of bone-anchored maxillary protraction (BAMP) in patients with unilateral cleft lip and palate. Methods The cleft group…
Quantitative analysis of enamel on debonded orthodontic brackets
Introduction Iatrogenic damage to the tooth surface in the form of enamel tearouts can occur during removal of fixed orthodontic appliances. The aim of this study was to assess debonded…
Prevalence of extraction space reopening in different orthodontic treatment protocols
Introduction In this study, we aimed to compare the amount and frequency of extraction space reopening after 2- and 4-premolar extraction treatments in Class II and 4-premolar extractions in Class…
The proof is in the pudding
You’ve almost lost count of all those educational loans you have accumulated since your college days. All well worth it, you concede, since you’ve finally accomplished your ultimate goal to…
Residents’ journal review
Gingival esthetics and oral health-related quality of life Stelzle F, Rohde M, Oetter N, Krug K, Riemann M, Adler W, et al. Gingival esthetics and oral health-related quality of life in…
Atomic force microscopy analysis of enamel nanotopography after interproximal reduction
In the April 2017 issue of the AJO-DO , Meredith et al evaluated enamel topography after interproximal reduction under atomic force microscopy (AFM). As discussed in many previous studies, AFM uses…
Midpalatal suture density ratio as a predictor of skeletal response to rapid maxillary expansion
We read with great interest the article in the February issue of the AJO-DO entitled “Midpalatal suture density ratio: a novel predictor of skeletal response to rapid maxillary expansion.” The…
Mandibular molar mesialization
We read the study “Apical root resorption due to mandibular first molar mesialization: a split-mouth study” by Winkler et al in the April 2017 issue of the AJO-DO . Mandibular molar…
An orthodontic registry: Producing evidence from existing resources
Highlights • An aggregated sample of orthodontic records could be used to improve care. • It would help clinicians to understand and assess their own performance. • It could facilitate…
Will similar force magnitude cause differential tooth movement?
We read with great interest the article on force degradation from elastomeric chains in the April 2017 issue (Evans KS, Wood CM, Moffitt AH, Colgan JA, Holman JK, Marshall SD, et al….
