American Journal of Orthodontics and Dentofacial Orthopedics

Intraoral distalizers associated with skeletal anchorage provide the major benefit of promoting molar distalization with minimum anchorage loss and patient cooperation. This case report presents the treatment of a 17-year-old female with Class II Division 2 malocclusion, maxillary dentoalveolar protrusion, mild mandibular retrusion, increased overjet, deepbite, and lip incompetence. The treatment plan involved initial maxillary molar distalization with a customized version of the skeletally anchored dual force distalizer (DFD).

This split-mouth randomized clinical trial aimed to compare the enamel surface roughness (SR) and color alteration after bracket debonding and polishing using 2 systems.

With more dentists performing orthodontics, identifying and managing patients at risk or affected by orthodontically-induced external root resorption (OIERR) is paramount.

For the treatment of low-angle mandibular prognathism, rotational mandibular setback surgery is usually performed with Le Fort I maxillary osteotomy to rotate the maxillomandibular complex simultaneously. However, this maxillary surgery can be replaced with the orthodontic intrusion of maxillary posterior teeth. Single-jaw rotational mandibular setback surgery can be done with a surgery-first approach by planning orthodontic rotation of the maxillary occlusal plane with the simulation of the postsurgical forward mandibular rotation.

The purpose of this research was to compare dentoskeletal changes produced by Herbst and Xbow appliances in late mixed/early permanent dentition patients with Class II Division 1 malocclusion to an untreated control group.

The objective of this research was to analyze the effect of orthodontic treatment with maxillary permanent first molar extraction on the occlusal stress distribution and displacement in the human skull.

Delayed tooth eruption is often seen in patients with palatally displaced canines (PDC), but there is controversy over whether tooth formation is also delayed. This study attempts to elucidate the answer by addressing methodological shortcomings in previous studies.

This study aimed to evaluate the influence of age, sex, and facial growth patterns on the maturation stage of midpalatal sutures.

The center of resistance (CRes) is regarded as the fundamental reference point for predictable tooth movement. Accurate estimation can greatly enhance the efficiency of orthodontic tooth movement. Only a handful of studies have evaluated the CRes of a maxillary first molar; however, most had a low sample size (in single digits), used idealized models, or involved 2-dimensional analysis. The objectives of this study were to: (1) determine the 3-dimensional (3D) location of the CRes of maxillary first molars, (2) evaluate its variability in a large sample, and (3) investigate the effects of applying orthodontic load from 2 directions on the location of the CRes.

Thank you for taking an interest in our article and for your thoughtful comments. We agree with your thoughts regarding the shortcomings of our published method; the report was one of our initial attempts at using nasoalveolar molding aligners, and we have been making efforts to refine, simplify, and optimize our approach since then.

I have been a clinical instructor of orthodontics at New York University for over 30 years. Participating in this diverse and stimulating environment has been immensely satisfying. Among the many benefits of the graduate program is interacting with a broad universe of students, faculty, staff, and patients. Teaching in this environment has taught me as much as I have taught my students—lessons that aren't in any textbook and have nothing to do with clinical skills.

Thank you for reading and commenting on our article. The article you cite by Chate1 is a valuable article about the effect of using special disinfectants on reducing biofilm in the waterline of dental units. In our article, if we meant flushing without disinfectant, we would use the phrase “flushing without disinfectant,” as Chate1 did in his Conclusions. This sentence is written under the “disinfection and sterilization” section, and flushing without disinfectants was not mentioned. According to the new Centers for Disease Control and Prevention guidelines, flushing alone cannot be relied on as the only way to improve the unit's water quality.

You truly enjoy the Tuesdays you devote to teaching at a local university. Despite the numerous continuing education courses you've completed, your experience as a part-time educator has enriched your knowledge more than you could ever imagine. As you've often said to your residents, their interaction with you gives you much more than you bring to them. And the best residents are those who are insatiable when it comes to knowing why, when, and how. But you notice an increasing trend over the years you've been teaching.

This cross-sectional study aimed to analyze the precision and trueness of dental models produced using 2 rapid prototyping 3-dimensional printers.

We believe that a causal relationship exists between proliferative stimulus and increased periodontal ligament (PDL) space.

Wolf v Rothstein, No. 26859 (Ohio Ct. App. Second Dist., August 19, 2016) presented an all too common scenario. The defendant, an employee of a surgical group, performed surgery on the plaintiff that did not end well. The plaintiff filed suit claiming negligence and lack of informed consent on the part of the surgeon; and negligence in overseeing the defendant surgeon by the surgical group that employed him. This article will only deal with the issue of the plaintiff’s motion to the court to be allowed to present evidence of a number of other malpractice suits that the defendant had been the subject of as well a number of proceedings by the state medical board concerning the defendant’s past practice history.

Thank you for reading and evaluating our article.

The understanding of how orthodontic movement of the teeth can assist other dental specialties and benefit the patients should be a major concern of orthodontic clinicians and researchers, hence the prominent role of the articles published by the American Journal of Orthodontics and Dentofacial Orthopedics over more than 100 years. The critical analysis of these papers contributes to the improvement of scientific evidence associated with the American Journal of Orthodontics and Dentofacial Orthopedics content.

I read with interest the article by Malekshoar et al (Malekshoar M, Malekshoar M, Javanshir B. Challenges, limitations, and solutions for orthodontists during the coronavirus pandemic: a review. Am J Orthod Dentofacial Orthop 2021;159:e59-e71).

An article in the November 2020 issue of the American Journal of Orthodontics and Dentofacial Orthopedics by Khlef et al1 evaluated the efficacies of traditional corticotomy and flapless corticotomy in accelerating en-masse retraction. The authors assessed skeletal, dental, and soft-tissue variables, and the external apical root resorption of the maxillary anterior teeth.

We read with interest the article by Dr Rany Bous et al (Bous RM, Kochenour N, Valiathan M. A novel method for fabricating nasoalveolar molding appliances for infants with cleft lip and palate using 3-dimensional workflow and clear aligners. Am J Orthod Dentofacial Orthop 2020;158:452-8) dealing with the novel approach of using nasoalveolar molding (NAM) custom aligners for infants with cleft lip and palate (CLP), which was published in addition to several other articles recently published on the topic.

The purpose of this study was to compare the efficacy of Invisalign's (Align Technology, Santa Clara, Calif) optimized and conventional attachments on rotational and extrusive tooth movements.

A 28-year-old woman desired orthodontic retreatment for lip protrusion and excessive gingival display in both the anterior and posterior areas on full smiling. She had previously undergone an extraction orthodontic treatment for correction of open bite. She was diagnosed with skeletal Class Ⅱ hyperdivergence. To mimic LeFort Ⅰ maxillary impaction surgery, posterosuperior movement of the maxillary whole dentition was planned, and bodily distalization of both the maxillary and the mandibular whole dentitions to improve lip protrusion.

This study aimed to evaluate the craniofacial effects of microimplant assisted rapid palatal expansion (MARPE) on bone-anchored maxillary protraction (BAMP) through a finite element analysis.

The objective of this study was to evaluate short and long-term results of the application of the alternate rapid maxillary expansion/constriction (Alt-RAMEC) technique in patients with skeletal Class III malocclusion.

Extreme patterns of vertical facial divergence are of great importance to clinicians because of their association with dental malocclusion and functional problems of the orofacial complex. Understanding the growth patterns associated with vertical facial divergence is critical for clinicians to provide optimal treatment. This study evaluates and compares growth patterns from childhood to adulthood among 3 classifications of vertical facial divergence using longitudinal, lateral cephalograms from the Craniofacial Growth Consortium Study.

The objective of this study was to evaluate whether the success or failure of miniscrew-assisted rapid palatal expansion (MARPE) in patients with advanced bone maturation could be related to factors such as midpalatal suture density (MPSD), midpalatal maturation stage (MPSM), midpalatal bone thickness (MBTh), palatal length (PL), expander screw position (ESP), and patient's age.

This study aimed to analyze adults with mandibular characteristics of skeletal Class II malocclusion with chin deviation.

The use of fixed retainers at the end of a course of orthodontic treatment has become standard practice. The main complication that can occur with fixed retainers is the detachment of the wire from one or more teeth. A less common complication is unwanted tooth movement. This article presents a patient with extreme tooth movement associated with a mandibular fixed retainer. Ten years after orthodontic treatment, a 26-year-old male sought treatment for post-orthodontic movement of the mandibular anterior 6 teeth.

The aim of this prospective study was to assess the 3-dimensional skeletal and dental effects induced by a new maxillary protraction approach using customized miniplates for anchorage compared with a control group of traditional tooth-borne maxillary protraction.

In recent years, artificial intelligence (AI) has been applied in various ways in medicine and dentistry. Advancements in AI technology show promising results in the practice of orthodontics. This scoping review aimed to investigate the effectiveness of AI-based models employed in orthodontic landmark detection, diagnosis, and treatment planning.

Uprighting mesially tipped molars is often a necessary step before implant placement. However, the orthodontic treatment can be lengthy and discourage patients from choosing implant prostheses. Periodontally accelerated osteogenic orthodontics is reported to facilitate molar movements. This study aimed to evaluate the biomechanical effects of various corticotomy and osteotomy approaches on the uprighting of a mesially tipped mandibular second molar in a 3-dimensional finite element analysis model.

This research aimed to measure the bone depth and thickness of different insertion paths for safe placement of infrazygomatic crest miniscrews between the first (U6) and second maxillary molars (U7) by 3-dimensional (3D) reconstruction and to explore their clinical significance.

The purpose of this study was to compare the metabolism of Streptococcus mutans biofilms after 1-7 days of growth on different orthodontic adhesives.

The objective of this research was to study the factors associated with the alveolar bone depth mesial to the mandibular third molars (M8) after the mandibular second (M7) and third molars were protracted into the space of the mandibular first molars (M6), which were newly extracted for orthodontic treatment or extracted more than 1 year before treatment.

The objective of this study was to evaluate the differences in preference between orthodontists and laypeople, judging soft tissue digital alterations of a Class II Division 1 profile of a female patient with mandibular retrognathia, produced by simulated camouflage and mandibular advancement therapy.

This study aimed to simulate the different positions of the hyrax appliance expander screw and evaluate tooth displacement and the stress distribution standard on the periodontal ligament using the finite element method.

Orthodontic treatment can help improve facial attractiveness through the modification of factors affecting the soft tissue profile. The objectives of this study were to determine the impact of different maxillary incisal inclinations and lower anterior facial heights (at rest and with a smile) on the facial attractiveness of an Asian woman, as perceived by different panels of raters using visual analog scale (VAS) scores.

Long-term follow-up and management of orthodontic bonded retainers require a strong collaboration between orthodontists and general dental practitioners (GDPs). This study aimed to evaluate if Eastern French GDPs were aware of bonded retainers’ complications and side effects and if they were willing to take part in their long-term follow-up.

The purpose of this research was to assess the diagnostic accuracy of sella turcica bridging on lateral cephalograms when compared with true sella turcica bridging determined via cone-beam computed tomography (CBCT).

This study aimed to identify the tooth movement patterns relative to various force angulations (FAs) when distalizing the total maxillary dentition.

The present study aimed to investigate the occurrence of micronuclei and the degenerative nuclear alterations indicative of apoptosis and necrosis in the exfoliated buccal and palatal mucosa cells of children and adolescents using orthodontic appliances made of self-curing acrylic resins.

The goal of this research was to experimentally evaluate the surface morphology and adhesion capacity of Streptococcus mutans (U159) on brackets with thin films of titanium nitride (TN) and of titanium nitride doped with calcium phosphate (TNCP).

This study aimed to investigate the incidence and recovery of neurosensory deficit (NSD) after LeFort I osteotomy over 12 months and identify any association between age, gender, and extent of surgical movement on recovery. Furthermore, the study explored the relationship between objective and subjective outcome measures.