The null hypothesis
The null hypothesis is the proposition that implies no effect or no relationship between phenomena. It is a hypothesis that the researcher tries to disprove, reject, or nullify, whereas the…
Authors’ response
We would like to thank Dr Papageorgiou for his interest in our article. We are grateful for the opportunity to offer a few clarifications. While conducting and reporting this meta-analysis,…
Meta-analysis 101
I read with interest the article “Prevalence of peg-shaped maxillary permanent lateral incisors: A meta-analysis” (Hua F, He H, Ngan P, Bouzid W. Am J Orthod Dentofacial Orthop 2013;144:97-109); although…
Vincent G. Kokich, 1944-2013
Vincent G. Kokich, Editor-in-Chief of the AJO-DO , died on July 24, 2013, at his home in Gig Harbor, Washington. His death was sudden and unexpected, and a great loss…
Evaluation of buccal bone coverage in the anterior region by cone-beam computed tomography
Introduction The purpose of this study was to compare the sensitivity of diagnoses of buccal bone coverage in anterior teeth between axial and sagittal reconstructions using cone-beam computed tomography. Methods…
Reproducibility of bracket positioning in the indirect bonding technique
Introduction Current studies have compared indirect bonding with direct placement of orthodontic brackets; many of these have shown that indirect bonding is generally a more accurate technique. However, the reproducibility…
In memory of Vincent G. Kokich Editor-in-Chief, 2011-2013
When many words have already been written to describe the life of Vincent George Kokich (September 17, 1944-July 24, 2013), it seems unfair to rely upon one person to summarize…
Midpalatal s uture maturation: Classification method for individual assessment before rapid maxillary expansion
Introduction In this study, we present a novel classification method for individual assessment of midpalatal suture morphology. Methods Cone-beam computed tomography images from 140 subjects (ages, 5.6-58.4 years) were examined…
Three-dimensional analysis of maxillary changes associated with facemask and rapid maxillary expansion compared with bone anchored maxillary protraction
Introduction Our objectives in this study were to evaluate in 3 dimensions the growth and treatment effects on the midface and the maxillary dentition produced by facemask therapy in association…
Distal movement of the mandibular dentition with temporary skeletal anchorage devices to correct a Class III malocclusion
This case report describes the treatment of an 18-year-old man with a skeletal Class III pattern and a full-step Class III malocclusion. The orthodontic treatment included distal movement of the…
Analyzing longitudinal orthodontic data. Part 3: Multilevel nonlinear growth models
In Part 1 of this series of articles on growth-curve modeling, we demonstrated how to use multilevel curvilinear models to analyze longitudinal orthodontic growth data. In Part 2, we demonstrated…
Early orthodontic intervention followed by fixed appliance therapy in a patient with a severe Class III malocclusion and cleft lip and palate
This case report describes the treatment of a girl, age 11 years 10 months, with a cleft lip and palate and a postsurgical scar. The clinical examination showed a concave…
Orthognathic treatment with autotransplantation of a third molar
Autotransplantation is an option for tooth replacement when a suitable tooth is available and anatomic circumstances are favorable. This case report describes successful orthognathic treatment that was combined with autotransplantation…
Orthodontic soft-tissue parameters: A comparison of cone-beam computed tomography and the 3dMD imaging system
Introduction Orthodontists rely heavily on soft-tissue analysis to determine facial esthetics and treatment stability. The aim of this retrospective study was to determine the equivalence of soft-tissue measurements between the…
Long-term mandibular skeletal and dental effects of standard edgewise treatment
Introduction The purpose of this investigation was to examine the effect of Tweed edgewise treatment on the expression of mandibular growth in the horizontal direction through maintenance of vertical control….
Speaking for another
Our responsibility to obtain informed consent for another doctor’s treatment is the subject of Jing v Karpov , 2008 NY Slip Op 52107(U) [21 Misc 3d 1120(A)]. The facts show that…
Face symmetry assessment abilities: Clinical implications for diagnosing asymmetry
Introduction An accurate assessment of face symmetry is necessary for the development of a dentofacial diagnosis in orthodontics, and an understanding of individual differences in perception of face symmetry between…
Condylar and ramal vertical asymmetry in adolescent patients with cleft lip and palate evaluated with cone-beam computed tomography
Introduction The aims of this study were to evaluate condylar and ramal mandibular vertical asymmetry in a patient group affected by unilateral (UCLP) and bilateral (BCLP) cleft lip and palate,…
Is the presence of Simonart’s band in patients with complete unilateral cleft lip and palate associated with the prevalence of missing maxillary lateral incisors?
Introduction The aim of this study was to compare the prevalence of agenesis of the maxillary lateral incisors in the cleft area of patients with unilateral cleft lip and palate…
Comparison of soft-tissue profiles in Le Fort I osteotomy patients with Dolphin and Maxilim softwares
Introduction To correct dentofacial deformities, a combination of orthodontic treatment and orthognathic surgery is needed. Prediction software packages are beneficial in treatment planning and achieving improved outcomes, but before using…
