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    7897 results match your criteria American Journal of Orthodontics and Dentofacial Orthopedics [Journal]

    1 OF 158

    Reliability of different radiographic methods for the localization of displaced maxillary canines.
    Am J Orthod Dentofacial Orthop 2018 Feb;153(2):308-314
    Department of Oral and Maxillofacial Radiology, School of Dentistry, National and Kapodistrian University of Athens, Athens, Greece.
    Introduction: The purpose of this study was to evaluate the reliability of the radiographic images of the main conventional x-ray techniques compared with the information from cone-beam computed tomography (CBCT).

    Methods: Twenty patients with unilateral or bilateral impaction of the maxillary canines had radiographic examinations by means of periapical x-rays, occlusal x-rays, panoramic x-rays, and CBCT scans. Three experienced orthodontists examined all x-rays from each patient and evaluated the radiographic images of the impacted canines. Read More

    Accuracy of bracket positions with a CAD/CAM indirect bonding system in posterior teeth with different cusp heights.
    Am J Orthod Dentofacial Orthop 2018 Feb;153(2):298-307
    Department of Orthodontics, Ewha Womans University, Seoul, Korea. Electronic address:
    Introduction: Our objective was to evaluate the effect of cusp height of posterior teeth (first premolar, second premolar, first molar) on the accuracy of the computer-aided design and computer-aided manufacturing (CAD-CAM) indirect bonding system.

    Material: Five kinds of maxillary arch models, without attrition, were divided into 2 groups: control group (with 0.5 mm of grinding) and experimental group (with the addition of 0. Read More

    Bone-anchored maxillary protraction in a patient with complete cleft lip and palate: A case report.
    Am J Orthod Dentofacial Orthop 2018 Feb;153(2):290-297
    Department of Orthodontics, School of Dentistry, University of North Carolina, Chapel Hill, NC.
    Sagittal maxillary deficiency is frequently observed in patients with operated unilateral complete cleft of the lip and palate. Treatment for moderate to severe Class III malocclusion usually relies on LeFort I surgery for maxillary advancement after the end of growth. This case report describes bone-anchored maxillary protraction in a 10-year-old white boy with unilateral complete cleft of the lip and palate. Read More

    Interdisciplinary treatment of a patient with multiple missing teeth and periodontitis.
    Am J Orthod Dentofacial Orthop 2018 Feb;153(2):278-289
    Department of Orthodontics, National Health Insurance Service Ilsan Hospital, Goyang, Republic of Korea. Electronic address:
    A 49-year-old woman with several missing and periodontically compromised teeth was referred to the orthodontic department of National Health Insurance Service Ilsan Hospital by the periodontic department for interdisciplinary treatment. Multiple posterior teeth had been extracted 10 days earlier. Her chief complaint was crowding of the anterior teeth, and she wanted to improve both esthetics and function. Read More

    Role of cone-beam computed tomography with a large field of view in Goldenhar syndrome.
    Am J Orthod Dentofacial Orthop 2018 Feb;153(2):269-277
    Department of Experimental and Clinical Biomedical Sciences, Radiodiagnostic Unit number 2, University of Florence, Azienda Ospedaliero, Universitaria Careggi, Florence, Italy.
    Introduction: Goldenhar syndrome is a rare disease with hemifacial microsomia and craniofacial disorders originating from the first and second branchial arches, such as ocular, auricular, and vertebral anomalies. The complexity and variety of the ways in which the disease presents itself usually need several examinations. In this study, we aimed to evaluate both craniofacial and vertebral skeletal anomalies and asymmetries between the nonaffected and affected sides in patients with Goldenhar syndrome by using cone-beam computed tomography. Read More

    Skeletal and dentoalveolar effects of hybrid rapid palatal expansion and facemask treatment in growing skeletal Class III patients.
    Am J Orthod Dentofacial Orthop 2018 Feb;153(2):262-268
    Postgraduate School of Orthodontics, University of Ferrara, Ferrara, Italy. Electronic address:
    Introduction: The purpose of this study was to describe the skeletal and dentoalveolar changes in a group of growing skeletal Class III patients treated with hybrid rapid palatal expansion and facemask.

    Methods: Twenty-eight growing patients with skeletal Class III malocclusion were treated using a rapid maxillary expander with hybrid anchorage according to the ALT-Ramec protocol (SKAR III; E.P. Read More

    Relationship between matrilin-1 gene polymorphisms and mandibular retrognathism.
    Am J Orthod Dentofacial Orthop 2018 Feb;153(2):255-261.e1
    Department of Orthodontics and Dentofacial Orthopaedics, Sri Ramachandra University, Porur, Chennai, India. Electronic address:
    Introduction: Mandibular retrognathism is a type of malocclusion that refers to an abnormal posterior position of the mandible as a result of a developmental abnormality. From the literature, it is evident that the mandibular growth pattern is determined by the intramembranous ossification of the mandibular body and endochondral ossification of the condyle. Matrilin-1 is a cartilage extracellular matrix protein, and matrilin-1 gene (MATN1) polymorphisms have been found to be involved in dental malocclusions of humans. Read More

    Monomer release from orthodontic retentions: An in vitro study.
    Am J Orthod Dentofacial Orthop 2018 Feb;153(2):248-254
    Faculty of Dentistry Nantes, France; Service d'Odontologie, Nantes, France. Electronic address:
    Introduction: The adhesives used to bond orthodontic retentions are low-loaded composite resins with a resinous matrix containing bisphenol A diglycidyl ether dimethacrylate synthesized from bisphenol A (BPA), fluidizers such as triethylene glycol dimethacrylate (TEGDMA) and hydrophilic polymers such as hydroxyethylmethacrylate. BPA disrupts the endocrine balance, and TEGDMA has high risks for human health: eg, allergies and cytotoxicity. The aim of this study was to evaluate in vitro the release of monomers from orthodontic bonded retentions. Read More

    A novel approach for treatment of skeletal Class II malocclusion: Miniplates-based skeletal anchorage.
    Am J Orthod Dentofacial Orthop 2018 Feb;153(2):239-247
    Department of Orthodontics, Faculty of Dentistry, Damascus University, Damascus, Syria.
    Introduction: The objective of this study was to evaluate the effect of a new approach-bimaxillary miniplates-based skeletal anchorage-in the treatment of skeletal Class II malocclusion compared with untreated subjects.

    Methods: The study (miniplates) group comprised 28 patients (14 boys, 14 girls) with skeletal Class II malocclusion due to mandibular retrusion, with a mean age of 11.83 years. Read More

    Clinical effectiveness of 2 orthodontic retainer wires on mandibular arch retention.
    Am J Orthod Dentofacial Orthop 2018 Feb;153(2):232-238
    Department of Orthodontics, Faculty of Dentistry, Ondokuz Mayıs University, Samsun, Turkey. Electronic address:
    Introduction: The aim of this study was to evaluate and compare the clinical success of 2 lingual retainer wires.

    Methods: The 120 patients included in the study were divided into 2 groups randomly. In group 1, 0. Read More

    Long-term changes in oral health-related quality of life of standard, cleft, and surgery patients after orthodontic treatment: A longitudinal study.
    Am J Orthod Dentofacial Orthop 2018 Feb;153(2):224-231
    Discipline of Orthodontics, Department of Oral Sciences, Sir John Walsh Research Institute, Faculty of Dentistry, University of Otago, Dunedin, New Zealand.
    Introduction: The aim of this study was to assess long-term changes and describe the trajectories of oral health-related quality of life (OHRQoL) in a cohort of cleft, surgery, and standard patients who received orthodontic treatment.

    Methods: Standard (n = 16), cleft (n = 19), and orthognathic surgery (n = 22) patients completed the short-form of the Oral Health Impact Profile (OHIP-14) before treatment, immediately posttreatment, and approximately 5 years posttreatment.

    Results: An overall reduction in OHIP-14 scores (improvement in OHRQoL) occurred after orthodontic treatment; however, this was only significant for the surgery and standard groups (P <0. Read More

    No association between types of unilateral mandibular condylar abnormalities and facial asymmetry in orthopedic-treated patients with juvenile idiopathic arthritis.
    Am J Orthod Dentofacial Orthop 2018 Feb;153(2):214-223
    Section of Orthodontics, Aarhus University, Aarhus, Denmark; Department of Oral and Maxillofacial Surgery, Aarhus University Hospital, Aarhus, Denmark.
    Introduction: Dentofacial asymmetries are often observed in patients with juvenile idiopathic arthritis (JIA) and temporomandibular joint (TMJ) involvements. The aim of this split-face study was to associate types of radiologic TMJ abnormalities with the degree of dentofacial asymmetry in patients with unilateral TMJ involvements assessed with cone-beam computed tomography.

    Methods: Forty-seven JIA patients and 19 nonarthritic control subjects were included in the study. Read More

    Physical properties of root cementum: Part 26. Effects of micro-osteoperforations on orthodontic root resorption: A microcomputed tomography study.
    Am J Orthod Dentofacial Orthop 2018 Feb;153(2):204-213
    Discipline of Orthodontics, Faculty of Dentistry, University of Sydney, Sydney Dental Hospital, Sydney Local Health District, Surry Hills, New South Wales, Australia.
    Introduction: Studies have demonstrated the potential efficacy of micro-osteoperforations in accelerating tooth movement by amplifying the expression of inflammatory markers. The aim of this investigation was to examine the effects of micro-osteoperforations on orthodontic root resorption with microcomputed tomography.

    Methods: This prospective controlled clinical trial involved 20 subjects requiring extraction of the maxillary first premolars as part of their orthodontic treatment. Read More

    Predictable method to deliver physiologic force for extrusion of palatally impacted maxillary canines.
    Am J Orthod Dentofacial Orthop 2018 Feb;153(2):195-203
    Private practice, L'Aquila, Italy.
    Introduction: Orthodontic treatment of palatally impacted maxillary canines raises many difficulties; to minimize complications, careful planning of orthodontic extrusion and the use of physiologic force are crucial. The aim of this study was to quantitatively evaluate a simple and reproducible system for orthodontic extrusion of impacted canines that can provide the correct amount of force.

    Methods: Ten specimens were constructed, consisting of a cantilever made with a 0. Read More

    Identification and appraisal of outcome measures used to evaluate hypodontia care: A systematic review.
    Am J Orthod Dentofacial Orthop 2018 Feb;153(2):184-194.e18
    Department of Orthodontics, University of Birmingham, Birmingham, United Kingdom.
    Introduction: Identification and appraisal of the outcome measures that have been used to evaluate hypodontia treatment and deliver services are essential for improving care. A lack of alignment between outcomes and patient values can limit the scope for patient-centered care. Our objectives were to identify and appraise the outcomes selected to evaluate hypodontia care. Read More

    Which orthodontic appliance is best for oral hygiene? A randomized clinical trial.
    Am J Orthod Dentofacial Orthop 2018 Feb;153(2):175-183
    Division of Orthodontics, Department of Craniofacial Sciences, University of Connecticut Health, Farmington, Conn. Electronic address:
    Introduction: Clear aligners and to a lesser extent self-ligated brackets are considered to facilitate better oral hygiene than traditional fixed orthodontic appliances. This 3-arm parallel-group prospective randomized clinical trial compared the long-term and short-term effects of clear aligners, self-ligated brackets, and conventional (elastomeric-ligated) brackets on patients' oral hygiene during active orthodontic treatment.

    Methods: Seventy-one participants (41 boys, 30 girls; mean age, 15. Read More

    Time-dependent behavior of porcine periodontal ligament: A combined experimental, numeric in-vitro study.
    Am J Orthod Dentofacial Orthop 2018 Jan;153(1):97-107
    Oral Technology, School of Dentistry, University of Bonn, Bonn, Germany.
    Introduction: The aim of this study was to analyze the time-dependent in-vitro behavior of the periodontal ligament (PDL) by determining the material parameters using specimens of porcine jawbone. Time-dependent material parameters to be determined were expected to complement the results from earlier biomechanical studies.

    Methods: Five mandibular deciduous porcine premolars were analyzed in a combined experimental-numeric study. Read More

    Psychological well-being, dental esthetics, and psychosocial impacts in adolescent orthodontic patients: A prospective longitudinal study.
    Am J Orthod Dentofacial Orthop 2018 Jan;153(1):87-96.e2
    Department of Orthodontics, Stomatological Hospital of Chongqing Medical University; Chongqing Key Laboratory of Oral Disease and Biomedical Sciences; Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China. Electronic address:
    Introduction: We examined the role of adolescent orthodontic patients' psychological well-being attributes (self-esteem, general body image, and positive and negative affects) and the clinical indicators of dental esthetics (orthodontists' ratings on the Index of Orthodontic Treatment Need-Aesthetic Component [IOTN-AC]), and their changes from pretreatment to posttreatment as predictors of the psychosocial impact of dental esthetics.

    Methods: In this prospective longitudinal study, 1090 adolescent orthodontic patients seeking treatment at the Stomatological Hospital of Chongqing Medical University in China (mean age, 14.25 years; SD, 2. Read More

    Effect of nonextraction and extraction orthodontic treatments on smile esthetics for different malocclusions.
    Am J Orthod Dentofacial Orthop 2018 Jan;153(1):81-86
    School of Dentistry, College of Oral Medicine, Taipei Medical University; Orthodontic Division, Department of Dentistry, Taipei Medical University Hospital, Taipei, Taiwan.
    Introduction: Smile esthetics is a critical factor for evaluating orthodontic treatment outcomes. In this study, we evaluated the differences in esthetic perceptions and smile variables between extraction and nonextraction treatments for different malocclusions.

    Methods: Ninety participants were divided into 3 groups according to their pretreatment overjet (group I, 0-4 mm; group II, >4 mm; group III, <0 mm), with 15 extraction participants and 15 nonextraction participants in each group. Read More

    Assessment of the rate of premolar extraction space closure in the maxillary arch with the AcceleDent Aura appliance vs no appliance in adolescents: A single-blind randomized clinical trial.
    Am J Orthod Dentofacial Orthop 2018 Jan;153(1):8-14
    Department of Orthodontics and Dentofacial Orthopedics, School of Dental Medicine/Medical Faculty, University of Bern, Bern, Switzerland; private practice, Corfu, Greece.
    Introduction: The purpose of this 2-arm parallel trial was to assess the effect of the AcceleDent Aura appliance (OrthoAccel Technologies, Houston, Tex) on the rate of maxillary premolar extraction space closure in adolescent patients.

    Methods: Forty Class II adolescents treated with full fixed appliances and maxillary premolar extractions participated in this randomized clinical trial. They were recruited in a private practice and treated by 1 clinician. Read More

    Plane-to-plane analysis of mandibular misalignment in patients with facial asymmetry.
    Am J Orthod Dentofacial Orthop 2018 Jan;153(1):70-80
    Department of Surgery, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan.
    Introduction: Little is known regarding how the mandible rotates in facial asymmetry. The purpose of this study was to study mandibular misalignment with a new plane-to-plane analysis method in patients with facial asymmetry.

    Methods: Optimal symmetry planes (OSPs) were generated by computing the greatest count of paired voxels on opposing sides of the computerized tomography image of the structure. Read More

    Highly cited orthodontic articles from 2000 to 2015.
    Am J Orthod Dentofacial Orthop 2018 Jan;153(1):61-69
    Private practice, Geneva, Switzerland.
    Introduction: Identification of highly cited articles based on the h-index and its properties is important for the evaluation of the past, present, and future of any research discipline. In this study, we aimed to identify the h-classic articles in orthodontics.

    Methods: One search on the Web of Science identified all articles from 2000 to 2015 in the 89 journals indexed by the 2015 InCites Journal Citation Reports in the scientific area "dentistry, oral surgery, and medicine. Read More

    Stability of secondarily inserted orthodontic miniscrews after failure of the primary insertion for maxillary anchorage: Maxillary buccal area vs midpalatal suture area.
    Am J Orthod Dentofacial Orthop 2018 Jan;153(1):54-60
    Department of Orthodontic Science, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan.
    Introduction: Few studies have examined the secondary insertion of orthodontic miniscrews after failure of the first insertion. We investigated both the primary and secondary success rates of miniscrews used for maxillary anchorage and compared the stability of the maxillary buccal area (MB) and the midpalatal suture area (MP).

    Methods: In total, 387 miniscrews were primarily inserted into the MB (between the second premolar and first molar); of these, 81 (20. Read More

    Pharyngeal airway evaluation after isolated mandibular setback surgery using cone-beam computed tomography.
    Am J Orthod Dentofacial Orthop 2018 Jan;153(1):46-53
    Department of Orthodontics, Saint Louis University, St Louis, Mo. Electronic address:
    Introduction: In this study, we investigated volumetric and dimensional changes to the pharyngeal airway space after isolated mandibular setback surgery for patients with Class III skeletal dysplasia.

    Methods: Records of 28 patients who had undergone combined orthodontic and mandibular setback surgery were obtained. The sample comprised 17 men and 11 women. Read More

    Craniofacial morphology in women with Class I occlusion and severe maxillary anterior crowding.
    Am J Orthod Dentofacial Orthop 2018 Jan;153(1):36-45
    Department of Orthodontics, School of Life Dentistry at Tokyo, Nippon Dental University, Tokyo, Japan. Electronic address:
    Introduction: Our objective was to investigate craniofacial morphology in women with Class I occlusion and maxillary anterior crowding (MxAC) with bilateral palatal displacement of the lateral incisors and facial displacement of the canines.

    Methods: Thirty-three women with normal occlusion (mean age, 20.7 ± 2. Read More

    Craniofacial morphology of HIV-positive children and adolescents undergoing antiretroviral therapy: A pilot study.
    Am J Orthod Dentofacial Orthop 2018 Jan;153(1):26-35
    Special Care Dentistry Center, School of Dentistry, University of São Paulo, São Paulo, Brazil; Department of Stomatology, School of Dentistry, University of São Paulo, São Paulo, Brazil. Electronic address:
    Introduction: In this study, we aimed to analyze craniofacial morphology by assessing the skeletal cephalometric profiles of HIV-positive patients receiving antiretroviral therapy.

    Methods: For this study, 21 HIV-positive patients aged between 6 and 17 years (study group) were selected and compared with 21 normoreactive patients (control group), paired by sex and age. The patients were also divided into 3 age ranges (6-8, 9-12, and 13-17 years) considering the pubertal growth spurt as the central event. Read More

    American Association of Orthodontists Foundation Craniofacial Growth Legacy Collection in the orthodontic literature-use and trends: A systematic review.
    Am J Orthod Dentofacial Orthop 2018 Jan;153(1):15-25.e10
    Private Practice, Vernon Hills, Ill.
    Introduction: The American Association of Orthodontists Foundation (AAOF) Craniofacial Growth Legacy Collection is a digital repository of records from 9 craniofacial growth study collections in the United States and Canada. The purposes of this article were to describe the use of materials from the AAOF Craniofacial Growth Legacy Collection in the orthodontic literature in comparative and follow-up studies, and to analyze trends before and after the project's launch in 2009.

    Methods: An electronic search without date or language restriction was conducted in the following databases: PubMed, Embase, Evidence-Based Medicine Reviews, and CINAHL. Read More

    Precision and trueness of dental models manufactured with different 3-dimensional printing techniques.
    Am J Orthod Dentofacial Orthop 2018 Jan;153(1):144-153
    Department of Orthodontics, Institute of Cranio-Facial Deformity, College of Dentistry, Yonsei University, Seoul, Korea. Electronic address:
    Introduction: In this study, we assessed the precision and trueness of dental models printed with 3-dimensional (3D) printers via different printing techniques.

    Methods: Digital reference models were printed 5 times using stereolithography apparatus (SLA), digital light processing (DLP), fused filament fabrication (FFF), and the PolyJet technique. The 3D printed models were scanned and evaluated for tooth, arch, and occlusion measurements. Read More

    A patient with mandibular deviation and 3 mandibular incisors treated with asymmetrically bent improved superelastic nickel-titanium alloy wires.
    Am J Orthod Dentofacial Orthop 2018 Jan;153(1):131-143
    Department of Orthodontic Science, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan.
    Skeletal and dental discrepancies cause asymmetric malocclusions in orthodontic patients. It is difficult to achieve adequate functional occlusion and guidance in patients with congenital absence of a mandibular incisor due to the tooth-size discrepancy. Here, we describe the orthodontic treatment of a 22-year-old woman with an asymmetric Angle Class II malocclusion, mandibular deviation to the left, and 3 mandibular incisors. Read More

    Surgery first using skeletal anchorage with tandem mechanics for mandibular molar distalization.
    Am J Orthod Dentofacial Orthop 2018 Jan;153(1):118-130
    Private practice, Porto Alegre, Rio Grande Do Sul, Brazil; Department of Orthodontics, Associação Brasileira de Odontologia, Seção Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil. Electronic address:
    This case report describes the orthodontic retreatment a patient with a skeletal Class III malocclusion. The clinical examination showed a concave profile caused by a retruded maxilla and a prognathic mandible, an occlusal cant, and absence of all first premolars. A surgery-first approach was combined with skeletal anchorage implants in the maxillary arch and tandem mechanics. Read More

    Long-term changes of the anterior palatal alveolar bone after treatment with bialveolar protrusion, evaluated with computed tomography.
    Am J Orthod Dentofacial Orthop 2018 Jan;153(1):108-117
    Department of Orthodontics, School of Dentistry, Kyungpook National University, Daegu, Korea. Electronic address:
    This case report describes the treatment of a 31-year-old woman with a convex profile, protrusive maxilla, retrusive mandible, and gummy smile. Four premolars were extracted, and micro-implant anchorage was used to retract the anterior teeth. Lip protrusion and the gummy smile were improved, but the computed tomography images showed dehiscence on the palatal alveolar bone of the maxillary incisors. Read More

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