Three-dimensional assessment of virtual clear aligner attachment removal: A prospective clinical study.

Introduction: In digital dentistry, virtual attachment removal (VAR) optimizes clear aligner therapy by enhancing efficiency for refinements and enabling prefabricated retainer production through the removal of attachments from a digital scan before the clinical removal of clear aligner attachments. This prospective clinical study aimed to evaluate the accuracy of VAR in the maxillary arch.

Methods: A total of 110 teeth were analyzed from a sample of 54 maxillary scans from 25 subjects.

International investigation on temporary anchorage device use: A survey of orthodontists.

Background: This study investigates characteristics of temporary anchorage devices (TADs) use by surveying a sample of international orthodontists. Furthermore, the survey investigates the stability, insertion technique, and failure rate of TADs and professionals' experience in residency, and it also attempts to establish guidelines for its use in everyday practice.

Methods: A 19-question survey was sent to orthodontists worldwide asking opinion-based, case-specific, and placement technique questions regarding TADs.

Smart Flexible 3D Sensor for Monitoring Orthodontics Forces: Prototype Design and Proof of Principle Experiment.

There is a critical need for an accurate device for orthodontists to know the magnitude of forces exerted on the tooth by the orthodontic brackets. Here, we propose a new orthodontic force measurement principle to detect the deformation of the elastic semi-sphere sensor. Specifically, we aimed to detail technical issues and the feasibility of the sensor performance attached to the inner surface of the orthodontic aligner or on the tooth surface.

Generational perspectives of orthodontists in the U.S. and Canada: A survey study.

Introduction: The objectives of this study were to identify differences between generations of orthodontists in the United States and to evaluate the perspective of each generation on widely debated topics in orthodontics.

Methods: A 22-item Institutional Review Board-approved survey was randomly distributed to orthodontists in the United States and Canada. Participants were asked questions about the use of technology, the future of clear aligner therapy, orthodontic education, student debt, marketing, and corporate orthodontics, among other topics.

Class II Division 2 Subdivision Malocclusion in an Adult Patient treated with the Forsus Fatigue-resistant Device placed Unilaterally.

Treatment of Class II subdivision malocclusion is challenging, and orthodontists frequently struggle to determine the choice of treatment. Several treatment modalities have been proposed for correcting these types of malocclusion. Thus, the aim of this case report is to present dentoalveolar and facial outcomes achieved using an unilateral Forsus fatigue-resistant device combined with fixed appliances in an adult female patient presenting with Class II subdivision malocclusion.

U.S. and Canadian Orthodontic Faculty Professional Satisfaction: A Survey Study.

The aims of this study were to evaluate U.S. and Canadian orthodontic faculty members' degree of job satisfaction and to assess the relationship between job satisfaction and factors such as full-time/part-time status, tenure status, age, and teaching training.

Perceptions of chin asymmetries among dental professionals and laypersons.

Introduction: Previous studies have looked at a variety of dental and facial asymmetries and compared their detection by dental professionals with those of laypersons. However, few studies have analyzed the diagnosis and perception of chin asymmetries. In this study, we assessed whether dental professionals can recognize and diagnose facial asymmetries of the chin better than laypeople.

Immunohistochemical expression of TLR-4 in temporomandibular joint dysfunction.

Toll-like receptor 4 (TLR-4) is a transmembrane protein involved in the innate immune system and has been implicated in the pathogenesis of temporomandibular joint dysfunction (TMD). The purpose of this study was to histologically examine the level of expression of TLR-4 relative to severity of TMD. Thirty-one human TMJ disc samples were immunostained for TLR-4 and evaluated for intensity of stain.

Nonsurgical correction of a severe anterior open bite with mandibular molar intrusion using mini-implants and the multiloop edgewise archwire technique.

This article reports the case of a 24-year-old man with a large anterior open bite, mild mandibular crowding, increased overjet, no passive lip sealing, and Angle Class I malocclusion. The treatment results were achieved by mandibular molar intrusion using 1.8 × 8.

Tooth loss and craniofacial factors associated with changes in mandibular condylar morphology.

To investigate the association between tooth loss and craniofacial factors with changes in mandibular condylar morphology. A total of 123 patients participated in this cross-sectional study. The mandibular condylar morphology was evaluated using digital panoramic radiography.

Immunohistochemical analysis of IL-1 Receptor 1 in the discs of patients with temporomandibular joint dysfunction.

Objective Temporomandibular joint dysfunction (TMD) may affect a patient's quality of life, and one of the etiologies can be anterior disc displacement with reduction (ADDwR) and anterior disc displacement without reduction (ADDWoR). Interleukin 1 Receptor 1 (IL-1R1) is a membrane receptor that plays an important role on initiating immune and inflammatory response by binding the agonists ligands of IL-1 alpha and IL-1 beta. Therefore, the aim of this study was to evaluate, through immunohistochemical analysis, the association of IL-1R1 with TMD.

Expression of Interleukin-1 and temporomandibular disorder: Contemporary review of the literature.

Objective: Temporomandibular disorders (TMD) are a group of conditions affecting the temporomandibular joint (TMJ), leading to jaw dysfunction, joint and muscle pain, and a decrease in quality of life. A communication network of pro- and anti-inflammatory mediators called cytokines maintains the homeostasis of the TMJ. This review will focus on the Interleukin (IL) family of cytokines, which have been quantified in TMJ synovial fluids in a variety of studies.

Maxillary lateral incisor agenesis and its relationship to overall tooth size.

Statement Of Problem: Agenesis of the maxillary lateral incisor has been linked to differences in the size of the remaining teeth. Thus, the mesiodistal space required for definitive esthetic restoration in patients with missing maxillary lateral incisors may be reduced.

Purpose: The purpose of this study was to determine whether a tooth size discrepancy exists in orthodontic patients with agenesis of one or both maxillary lateral incisors.

Operative management of idiophatic myositis ossificans of lateral pterygoid muscle.

Introduction: Myositis ossificans (MO) is characterized as heterotopic bone formation within muscle. MO rarely occurs in the head and neck region. Excision of the heterotopic bone is the standard treatment.

Effect of occlusal vertical dimension on lip positions at smile.

Statement Of Problem: In complete mouth reconstructive dentistry, the occlusal vertical dimension may be increased to provide adequate restorative space or to improve esthetics. The effect of increasing the occlusal vertical dimension on the smile is not well understood.

Purpose: The purpose of this study was to evaluate the effect of increasing the occlusal vertical dimension on the dimensions of the smile.

Treatment and retreatment of a patient with a severe anterior open bite.

An 8-mm anterior and posterior open bite caused by a tongue rest posture habit was closed in a 25-year-old man by means of mandibular soldered tongue spurs and without orthognathic surgery. All maxillary and mandibular first molars were extracted, and the spaces were closed. Inappropriate retention protocol allowed for relapse in a 6-month period.

Dimensional changes of upper airway after rapid maxillary expansion: a prospective cone-beam computed tomography study.

Introduction: The aim of this prospective study was to use cone-beam computed tomography to assess the dimensional changes of the upper airway in orthodontic patients with maxillary constriction treated by rapid maxillary expansion.

Methods: Fourteen orthodontic patients (mean age, 12.9 years; range, 9.

Moving an incisor across the midline: a treatment alternative in an adolescent patient.

A 13-year-old sought treatment for a severely compromised maxillary left central incisor and an impacted fully developed left canine. Extraction of both teeth became necessary. As the key component of the revised comprehensive treatment plan, the right maxillary central incisor was moved into the position of the left central incisor.

Bonding with self-etching primers--pumice or pre-etch? An in vitro study.

The purpose of this study was to compare the shear bond strengths (SBSs) of orthodontic brackets bonded with self-etching primer (SEP) using different enamel surface preparations. A two-by-two factorial study design was used. Sixty human premolars were harvested, cleaned, and randomly assigned to four groups (n = 15 per group).

The incidence of maxillary sinus retention cysts in orthodontic patients.

Maxillary sinus retention cysts are occasionally found on dental radiographs. The objective of this study was to verify the frequency of maxillary sinus retention cysts in consecutive panoramic radiographs from 173 patients (77 males, 96 females) in an orthodontic office. The chi-square test was used for statistical analysis.