4,741 results match your criteria Angle Orthodontist[Journal]


Association between malocclusion in the mixed dentition with breastfeeding and past nonnutritive sucking habits in school-age children.

Angle Orthod 2022 Jun 27. Epub 2022 Jun 27.

Objectives: To evaluate the association between malocclusion characteristics in the mixed dentition stage, breastfeeding, and past nonnutritive sucking habits in school-age children.

Materials And Methods: A total of 547 school children in the mixed dentition, in the age range between 7 and 13 years, were evaluated by means of questionnaire and clinical examination. Binomial and multinomial logistic regression models were used to evaluate the associations between breastfeeding and finger and pacifier sucking habits, the malocclusion characteristics of posterior crossbite, and excessive or deficient overjet and overbite. Read More

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Letter to the Editor.

Angle Orthod 2022 Jul;92(4):573

Department of Orthodontics, University at Buffalo School of Dental Medicine, Buffalo, New York.

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Response to the Letter.

Angle Orthod 2022 Jul;92(4):574

Private Practice, Ankara, Turkey.

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

Angle Orthod 2022 Jun 20. Epub 2022 Jun 20.

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. Read More

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Cytotoxicity assessment of different clear aligner systems: An in vitro study.

Angle Orthod 2022 Jun 7. Epub 2022 Jun 7.

Objectives: To evaluate and compare the cytotoxicity of multiple clear aligner systems (Invisalign, Eon, SureSmile, and Clarity).

Materials And Methods: A cytotoxicity assessment was carried out by immersing three sets of aligners from the included four systems in normal saline for 1 month at 37°C. The solutions were then diluted to three different concentrations (5%, 10%, and 20% volume/volume). Read More

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Correlation between malocclusion and history of bullying in vulnerable adolescents.

Angle Orthod 2022 Jun 7. Epub 2022 Jun 7.

Objectives: To assess the correlation between malocclusion and a history of bullying.

Materials And Methods: A cross-sectional study of 494 adolescents aged 12 to 15 years was conducted. The National School Health Survey questionnaire (PeNSE 1 and 2) was used to determine history of bullying by identifying the victim and the abuser. Read More

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Automated landmark identification on cone-beam computed tomography: Accuracy and reliability.

Angle Orthod 2022 Jun 2. Epub 2022 Jun 2.

Objectives: To evaluate the accuracy and reliability of a fully automated landmark identification (ALI) system as a tool for automatic landmark location compared with human judges.

Materials And Methods: A total of 100 cone-beam computed tomography (CBCT) images were collected. After the calibration procedure, two human judges identified 53 landmarks in the x, y, and z coordinate planes on CBCTs using Checkpoint Software (Stratovan Corporation, Davis, Calif). Read More

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Stability of fiducial cephalometric landmarks of growing Class II malocclusion patients: a three-dimensional retrospective study.

Angle Orthod 2022 Jun 2. Epub 2022 Jun 2.

Objectives: To evaluate three-dimensionally (3D) the stability of Nasion (Na), Sella (S), Basion (Ba), Porion (Po), and Orbitale (Or) in different age groups of growing Class II malocclusion patients and, additionally, to assess rotational changes of the S-Na and Ba-Na lines and the Frankfurt Horizontal Plane (FHP).

Materials And Methods: Cone-beam computed tomography studies of 67 Class II division 1 malocclusion patients, acquired at baseline (T0) and 1 year later (T1), were retrospectively assessed. Anterior cranial fossa was used for volumetric superimposition. Read More

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Precision and accuracy assessment of single and multicamera three-dimensional photogrammetry compared with direct anthropometry.

Angle Orthod 2022 May 27. Epub 2022 May 27.

Objectives: To assess the precision and accuracy of single-camera photogrammetry (SCP) and multicamera photogrammetry (MCP) compared with direct anthropometry (DA).

Materials And Methods: A total of 30 participants were recruited, and 17 soft tissue landmarks were identified and used to complete a total of 16 measurements. Using SCP and MCP, two three-dimensional (3D) images were acquired from each participant. Read More

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Influence of genotype and perioral musculature on maxillary and mandibular development.

Angle Orthod 2022 May 24. Epub 2022 May 24.

Objectives: To determine whether there is an association between skeletal jaw position and perioral musculature, and if genotypes can predict skeletal growth.

Materials And Methods: A prospective study on 42 patients over 1 year was performed. The study included 22 females and 20 males with and average age of 28. Read More

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Anatomical limitations and factors influencing molar distalization.

Angle Orthod 2022 May 23. Epub 2022 May 23.

Objectives: To analyze the anatomical limitations and characteristics of maxillary and mandibular retromolar regions affecting molar distalization using cone-beam computed tomography (CBCT).

Materials And Methods: A total of 120 qualifying patients were classified into equal groups of skeletal Class II and Class III and stratified by vertical growth pattern, age, sex, and third molar presence. The available distance along the axis of distalization and cortical bone thickness (CBT) were measured in the maxillary and mandibular retromolar regions of Class II and Class III patients, respectively. Read More

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Corrosion of orthodontic brackets: qualitative and quantitative surface analysis.

Angle Orthod 2022 May 23. Epub 2022 May 23.

Objectives: To determine and compare surface characteristics and presence of corrosion in new and used brackets with optical light microscopy (OLM) and scanning electron microscopy (SEM), and with elemental chemical analysis with energy-dispersive X-ray spectroscopy (EDS).

Materials And Methods: OLM and SEM were used to analyze 24 new and 24 used conventional premolar brackets. EDS analysis was performed in six used brackets and four new brackets with corrosion-suspected spots. Read More

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Letter to the Editor.

Angle Orthod 2022 05;92(3):426

Division of Orthodontics and Dentofacial Orthopedics.

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Root resorption in relation to a modified piezocision technique.

Angle Orthod 2022 05;92(3):347-352

Objectives: To evaluate root resorption of lower incisors and canines quantitatively in a group of patients who underwent orthodontic treatment with piezocision and/or a collagen reinforcement technique with a fully resorbable three-dimensional (3D) collagen xenograft matrix compared with a control group.

Materials And Methods: The study sample of this secondary analysis consisted of 32 periodontally healthy patients with angle Class I malocclusion or mild Class II or III malocclusion and moderate irregularity index scores who underwent orthodontic treatment and had before (T0) and after treatment (T1) cone-beam computed tomography scans. Root resorption of lower incisors and canines was assessed quantitatively in the following four groups: the control group received orthodontic treatment without piezocision, experimental group 1 received orthodontic treatment with piezocision, experimental group 2 received orthodontic treatment with piezocision and a 3D collagen matrix, and experimental group 3 received orthodontic treatment with a 3D collagen matrix. Read More

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Comparing patient-centered outcomes and efficiency of space closure between nickel-titanium closed-coil springs and elastomeric power chains during orthodontic treatment.

Angle Orthod 2022 Jul;92(4):471-477

Objectives: To compare patient-reported pain, discomfort, and difficulty in maintaining proper brushing between nickel-titanium closed-coil springs (CS) and elastomeric power chains (PC) when used for space closure. The secondary aims were to compare plaque control and efficiency of space closure between these two force delivery systems.

Materials And Methods: A total of 48 patients who required extractions of upper first premolars and distal movement of upper canines had the CS randomly allocated to either the right or left side. Read More

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Effect of low-level laser therapy on the time needed for leveling and alignment of mandibular anterior crowding.

Angle Orthod 2022 Jul;92(4):478-486

Objectives: To assess the effect of low-level laser therapy (LLLT) on overall leveling and alignment time of mandibular anterior crowding and associated pain after initial archwire placement.

Materials And Methods: Thirty-two females (18-25 years) with mandibular anterior crowding were randomly allocated into laser and control groups. Eligibility criteria included Angle Class I molar relationship and Little's irregularity index (LII) from 4 to 10 mm. Read More

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A comparative assessment of the amount and rate of orthodontic space closure toward a healed vs recent lower premolar extraction site.

Angle Orthod 2022 Jul;92(4):463-470

Objectives: To investigate and compare the amount and rate of space closure and tooth tipping during orthodontic space closure toward a recent vs healed first premolar extraction site.

Materials And Methods: The mandibular arches of 23 patients were included. Treatment plans included lower first premolar extractions. Read More

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Combined orthodontic and surgical open bite correction: Principles for success. Part 2.

Angle Orthod 2022 Jul;92(4):431-445

Objectives: To present a clinical description of the team's treatment techniques.

Materials And Methods: In Part 1, 30 patients underwent segmental maxillary orthodontics, multisegment Le Fort I, and bilateral sagittal osteotomies of the mandible. Part 1 reported excellent occlusal stability at a mean follow-up of 49. Read More

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Association between malocclusion and articulation of phonemes in early childhood.

Angle Orthod 2022 Jul;92(4):505-511

Objectives: To evaluate the relationship between dental malocclusion and speech to understand the etiology of speech sound disorders (SSD) in schoolchildren and to make a correct diagnosis and treatment plan.

Materials And Methods: Articulation and dental occlusion, oromyofunctional evaluation with orofacial praxis and musculature, resting tongue position, and swallowing pattern were analyzed in 290 schoolchildren between the ages of 4 and 7 years. Statistical tests were considered significant for P < . Read More

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Effects of compressive stress combined with mechanical vibration on osteoclastogenesis in RAW 264.7 cells.

Angle Orthod 2022 Jul;92(4):555-561

Objectives: To investigate the effects of compressive force and/or mechanical vibration on NFATc1, DCSTAMP, and CTSK (cathepsin K) gene expression and the number of tartrate-resistant acid phosphatase (TRAP)-positive multinucleated cells in RAW 264.7 cells, a murine osteoclastic-like cell line.

Materials And Methods: RAW 264. Read More

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Alveolar bone thickness and height changes following incisor retraction treatment with microimplants.

Angle Orthod 2022 Jul;92(4):497-504

Objectives: To evaluate alveolar bone remodeling following incisor retraction treatment with microimplants and to examine the relationship between crown/root distal movement and thickness/height changes of the alveolus.

Materials And Methods: A total of 24 patients (mean age, 19.29 ± 4. Read More

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Orthodontists' perceptions of and adaptations to nonspecialist and direct-to-consumer orthodontic service providers.

Angle Orthod 2022 Jul;92(4):446-462

Objectives: To evaluate orthodontists' perceived impacts on their practices as a result of general practitioners (GPs) and direct-to-consumer (DTC) orthodontic care providers and the adaptational changes implemented in the past 10 years.

Materials And Methods: An electronic survey was administered to 270 orthodontists in Canada and the United States to determine demographic background, perception of perceived impact, and specific changes implemented to improve practice competitiveness.

Results: More experienced orthodontists (P = . Read More

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Letter to the Editor.

Angle Orthod 2022 03;92(2):294

Department of Orthodontics and Dentofacial Orthopaedics. Maulana Azad Institute of Dental Sciences, Bahadur Shah Zafar Marg, New Delhi, India.

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Response to the Letter.

Angle Orthod 2022 03;92(2):295

Necmettin Erbakan University, Konya, Turkey.

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Letter to the Editor.

Angle Orthod 2022 03;92(2):296

Department of Orthodontics and Dentofacial Orthopaedics. Maulana Azad Institute of Dental Sciences, Bahadur Shah Zafar Marg, New Delhi, India.

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Response to the Letter.

Angle Orthod 2022 03;92(2):297-298

Necmettin Erbakan University, Konya, Turkey.

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Response to the Letter.

Angle Orthod 2022 03;92(2):302

Necmettin Erbakan University, Konya, Turkey.

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Letter to the Editor.

Angle Orthod 2022 03;92(2):299

Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.

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Response to the Letter.

Angle Orthod 2022 03;92(2):300

Necmettin Erbakan University, Konya, Turkey.

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