Effects of playing a wind instrument on the occlusion
Introduction There is a popular belief among some musicians that playing a wind instrument regularly can affect the position of the teeth. The aim of this study was to investigate…
Residents’ journal review
Long-term changes in untreated dental arches Tsiopas N, Nilner M, Bondemark L, Bjerklin K. A 40 years follow-up of dental arch dimensions and incisor irregularity in adults. Eur J Orthod…
More than a contract
One of your patients is a college professor who has lost multiple teeth. The original treatment plan calls for uprighting the posterior quadrants followed by restorative rehabilitation with both conventional…
The best continuing education
How much time and money do you invest in continuing education annually to keep abreast of developments in orthodontics? In what venues do you find the most productive continuing educational…
Author’s response
I thank Dr Bai for his interest in our article, but I want to express a few concerns regarding his assertions. As reported on page 121, the article focused specifically…
Mystery of apical root resorption
In a July 2011 article, Bonetti et al reported on the treatment of an unerupted maxillary permanent canine. Canines play vital roles in both dentofacial esthetics and function. Canine impaction can…
Online only abstract
Physical properties of root cementum: Part 23. Effects of 2 or 3 weekly reactivated continuous or intermittent orthodontic forces on root resorption and tooth movement: A microcomputed tomography study Banu…
Are we victims of aggressive marketing?
The thought-provoking column by Dr Peter Greco in the November issue of the AJO-DO couldn’t have been better timed! It had us trying to reflect on the few decennia…
Radiographic study of delayed tooth development in patients with dental agenesis
Introduction The aims of this study were to compare the radiographic development of permanent teeth in a group of children affected by dental agenesis with an unaffected control group and…
Three-dimensional finite element analysis of strength, stability, and stress distribution in orthodontic anchorage: A conical, self-drilling miniscrew implant system
Introduction The aims of this study were to analyze the stress distribution and displacement patterns that develop in an orthodontic miniscrew implant and its surrounding osseous structures for 2 implant…
A practical and effective method to increase the capacity of screws used for palatal disjunction
In clinical situations involving accentuated atresia in the maxillary arch, palatal disjunction is called for. This treatment often requires an appliance change to achieve the desired movement. The aim of…
Long-term stability of conservative orthodontic treatment in a patient with rheumatoid arthritis and severe condylar resorption
Rheumatoid arthritis is a chronic inflammatory condition that can result in progressive destruction of the articular surfaces of the joints, including the temporomandibular joint. The purpose of this article is…
Efficacy of low-intensity laser therapy in reducing treatment time and orthodontic pain: A clinical investigation
Introduction The long duration of orthodontic treatment is a major concern for patients. A noninvasive method of accelerating tooth movement in a physiologic manner is needed. The aim of this…
Interactive distance learning for orthodontic residents: Utilization and acceptability
Introduction Sharing resources through distance education has been proposed as 1 way to deal with a lack of full-time faculty in orthodontic residency programs. To keep distance education for orthodontic…
Orthodontic treatment for a patient with a unilateral cleft lip and palate and congenitally missing maxillary lateral incisors and left second premolar
Treatment of a patient with a cleft lip and palate can be challenging. A woman, aged 26 years 8 months, was referred for orthodontic evaluation of her anterior crossbite. She…
Improvement of nasal airway ventilation after rapid maxillary expansion evaluated with computational fluid dynamics
Introduction Rapid maxillary expansion is known to improve nasal airway ventilation. However, it is difficult to precisely evaluate this improvement with conventional methods. The purpose of this longitudinal study was…
Stress and displacement between maxillary protraction with miniplates placed at the infrazygomatic crest and the lateral nasal wall: A 3-dimensional finite element analysis
Introduction The purpose of this study was to compare the pattern and amount of stress and displacement between maxillary protraction with miniplates placed at the infrazygomatic crest and the lateral…
Effects of thread depth, taper shape, and taper length on the mechanical properties of mini-implants
Introduction The primary stability of a mini-implant is critical, since most orthodontic mini-implant failures occur at an early stage. As orthodontic mini-implants have restrictions in diameter and length, an optimal…
Blinding or masking
“Masking” (or “blinding”) refers to the steps taken to ensure that all persons involved in a trial are unaware of the type of treatment that each participant receives. In general,…
What to say given what was said
A reader from Connecticut wrote with the following questions. A parent calls last minute to reschedule their child’s after school appointment, demands to be seen at the same time on…
