Comparison between round multi-strand wire and rectangular wire bonded retainers: a randomized clinical trial.

Objective: The primary objective was to compare round multi-strand wire and Ortho-Flex-Tech™ rectangular wire retainers in terms of gingival health. The secondary objectives were to assess plaque/calculus accumulation, and to determine the effectiveness of these retainers in maintaining tooth alignment and their failure rate.

Material And Methods: This single-center study was a two-arm parallel randomized clinical trial and was conducted at the Orthodontic clinics in Dental Teaching Center/Jordan University of Science and Technology.

Upper airway dimensions and the skeletal parameters in orthodontic patients who developed moderate-severe COVID-19 symptoms during the pandemic.

Background: Large airway dimensions are associated with a rapid decline in the lung function and a higher risk of hospitalization. Therefore, the airway dimensions of healthy subjects who tested positive for coronavirus disease 2019 (COVID-19) may be associated with the severity of COVID-19 symptoms.

Objectives: The objectives of this study were to measure the upper airway dimensions and the craniofacial skeletal parameters in patients who tested positive for COVID-19, to compare the upper airway dimensions and the craniofacial skeletal parameters between patients who developed no/mild symptoms and those with moderate-severe COVID-19 symptoms, and to assess any association of the skeletal relationships (anteroposterior (AP) and vertical) and the upper airway dimensions with the severity of COVID-19 symptoms in adult subjects.

Effect of piezocision-assisted lower second molar protraction on periodontal tissues, alveolar bone height, and lower second molar root resorption.

Objectives: To assess the effect of piezocision on periodontal tissues and alveolar bone height and to detect lower second molar root resorption in piezocision-assisted mandibular second molar protraction compared to no-piezocision molar protraction.

Materials And Methods: Twenty-one subjects (four males, 17 females, aged 22.43 ± 2.

Comparison of second molar protraction using different timing for piezocision application: A randomized clinical trial.

Objective: To compare second molar protraction between early, late and no piezocision groups.

Material And Methods: Forty subjects with bilaterally extracted mandibular first molars were selected to participate in the study. Subjects were subdivided into two groups: piezocision and no piezocision.

Efficacy of lower arch leveling, lower incisors' root resorption, and pain associated with the correction of curve of Spee using different orthodontic archwires: a randomized clinical trial.

Objectives: To compare between 3 archwires (AWs) for leveling curve of Spee (COS) in terms of efficacy of reduction, external apical root resorption (EARR), pain experienced, and the lower arch dimensional changes during COS leveling.

Trial Design: Randomized clinical trial.

Setting: Jordan University of Science and Technology Postgraduate dental clinics.

Tooth size discrepancy in orthodontic patients with skeletal anterior open bite.

Objective: To find out if there is any relationship between tooth size discrepancy (TSD) and skeletal anterior open bite (AOB) and to assess the correlation between the amount of AOB and TSD.

Method: A total of 100 Class I subjects were included in this study (average age 15.21 ± 2.

Cranial base measurements in different anteroposterior skeletal relationships using Bjork-Jarabak analysis.

Objectives: To assess the linear and angular cranial base measurements (Bjork polygon) in different anteroposterior (AP) skeletal relationships using Bjork-Jarabak analysis.

Materials And Methods: Pretreatment lateral cephalograms of 288 (146 women, 142 men, mean ages 21.24 ± 2.

Effect of piezocision on mandibular second molar protraction.

Objectives: To assess the effects of piezocision on the rate of mandibular second molar protraction.

Materials And Methods: Thirty-one subjects (average age: 22.26 ± 5.

Pain experience during initial alignment with three types of nickel-titanium archwires: a prospective clinical trial.

Objective: To clinically evaluate the pain intensity during the week following initial placement of three different orthodontic aligning archwires.

Materials And Methods: A consecutive sample of 75 patients requiring upper and lower fixed orthodontic appliances were alternately allocated into three different archwires (0.014-inch superelastic NiTi, 0.

Comparison of personality traits, attitude toward orthodontic treatment, and pain perception and experience before and after orthodontic treatment.

Objective: To compare personality traits, attitude toward orthodontic treatment, and pain perception and experience before and after orthodontic treatment.

Materials And Methods: One hundred subjects (50 male and 50 female) were included in this study. The mean (SD) age was 17.

A clinical comparison of three aligning archwires in terms of alignment efficiency: A prospective clinical trial.

Objectives: To clinically evaluate the effectiveness of three orthodontic aligning archwires in relation to tooth alignment speed during the initial alignment stage of treatment.

Materials And Methods: A consecutive sample of 74 patients requiring lower only or upper and lower fixed orthodontic appliances were randomly allocated into three different archwires (0.014-inch superelastic nickel-titanium [NiTi], 0.

Mandibular symphysis morphology and dimensions in different anteroposterior jaw relationships.

Objective: To assess the morphology and dimensions of mandibular symphysis (MS) in different anteroposterior jaw relationships and to investigate whether craniofacial parameters have any correlation with its shape and/or dimensions.

Materials And Methods: Lateral cephalograms of subjects with Class I, Class II, and Class III skeletal relationships were traced. Several craniofacial and MS parameters were measured.

Effect of fixed orthodontic appliances bonded with different etching techniques on tooth color: a prospective clinical study.

Introduction: For most orthodontic patients, esthetic concerns are as important as functional demands. The purpose of this study was to assess the effect of self-etching primer and conventional acid etching on tooth color after orthodontic treatment.

Methods: A total of 34 patients were enrolled in a clinical trial and divided into 2 groups based on age: adolescents (≤17 years) and adults (>17 years).

The effect of different bracket base cleaning method on shear bond strength of rebonded brackets.

Aim: To assess the effect of different bracket base conditioning method on shear bond strength (SBS) of rebonded brackets.

Materials And Methods: Eighty brackets were bonded to freshly extracted premolar teeth using light cured composite adhesive. SBS was measured for 20 random samples as control group (G1).

Alveolar bone density changes around miniscrews: a prospective clinical study.

Introduction: Our objective was to assess the effects of miniscrews on interproximal alveolar bone density and adjacent gingival tissue health.

Methods: Forty-four titanium miniscrews were inserted between maxillary second premolars and first molars on both sides of the dentition in 22 consecutive patients (15 female, 7 male; ages, 14-24 years). A control area (between the maxillary first and second premolars) was also assessed.

Factors affecting demineralization during orthodontic treatment: a post-hoc analysis of RCT recruits.

Introduction: Our aim was to determine predictors for the presence and degree of demineralization during orthodontic treatment. This study was a post-hoc analysis of recruits for a randomized controlled trial. Two hundred thirty patients were included in this study and assessed for demineralization at debond by using quantitative light-induced fluorescence to determine their eligibility for a randomized controlled trial assessing the effectiveness of various toothpastes at reducing demineralization during retention.