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American Journal of Orthodontics and Dentofacial Orthopedics

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https://www.readbyqxmd.com/read/29957328/correlation-between-midline-deviation-and-condylar-position-in-patients-with-class-ii-malocclusion-a-cone-beam-computed-tomography-evaluation
#1
Gina Delia Roque-Torres, Priscila Dias Peyneau, Eliana Dantas da Costa, Frab Noberto Bóscolo, Solange Maria de Almeida, Luciano Wagner Ribeiro
INTRODUCTION: Midline deviation of the mandible and maxilla can affect craniofacial growth and occlusion and cause consequences to the temporomandibular joint. The aim of this study was to evaluate the lateral displacement of the skeletal and dental midlines in relation to the condyle head position in Class II patients with cone-beam computed tomography. METHODS: We used 82 cone-beam computed tomography images. The lateral displacement of the skeletal and dental midlines considering the 3-dimensional reference plane was analyzed with points in the maxillary and mandibular central incisors, anterior nasal spine, and menton...
July 2018: American Journal of Orthodontics and Dentofacial Orthopedics
https://www.readbyqxmd.com/read/29957327/three-dimensional-evaluation-of-craniofacial-characteristics-related-to-mandibular-asymmetries-in-skeletal-class-i-patients
#2
Guilherme Thiesen, Maria Perpétua Mota Freitas, Eustáquio A Araújo, Bruno Frazão Gribel, Ki Beom Kim
INTRODUCTION: Our objective was to analyze the characteristics that affect skeletal Class I adults with mandibular asymmetries using cone-beam computerized tomography. METHODS: The sample included cone-beam computerized tomography images of 120 subjects. Asymmetry was determined by the deviation of gnathion from the midsagittal plane and classified as relative symmetry, moderate asymmetry, or severe asymmetry. Maxillary and mandibular measurements were made, and the differences between the contralateral side and the deviated side were evaluated, as well as the differences between the categories of asymmetry...
July 2018: American Journal of Orthodontics and Dentofacial Orthopedics
https://www.readbyqxmd.com/read/29957326/lingual-mandibular-osteonecrosis-vs-dental-impression-a-challenging-diagnosis
#3
LETTER
Paulo Henrique C Souza, Liziane C Donaduzzi, Lara K Guimarães, Orlando Motohiro Tanaka
No abstract text is available yet for this article.
July 2018: American Journal of Orthodontics and Dentofacial Orthopedics
https://www.readbyqxmd.com/read/29957325/impact-of-altered-gingival-characteristics-on-smile-esthetics-laypersons-perspectives-by-q-sort-methodology
#4
Panchali Batra, Anika Daing, Imam Azam, Ragini Miglani, Ashu Bhardwaj
INTRODUCTION: Smile esthetics includes the white esthetics related to the teeth and the pink esthetics related to the mucosa. Many surveys have been conducted to evaluate laypersons' perceptions to altered dental characteristics, but few have focused on the soft tissue factors. This study was designed to determine the perceptions of laypeople to variations in soft tissue esthetics during smile. METHODS: An ideal smile photograph was intentionally altered to produce variations in gingival inflammation, pigmentation, contour, position of free gingival margins (with and without recession), zeniths, and interdental papilla...
July 2018: American Journal of Orthodontics and Dentofacial Orthopedics
https://www.readbyqxmd.com/read/29957324/what-we-have-to-offer
#5
LETTER
Gerald W Spencer
No abstract text is available yet for this article.
July 2018: American Journal of Orthodontics and Dentofacial Orthopedics
https://www.readbyqxmd.com/read/29957323/childhood-body-mass-index-is-associated-with-early-dental-development-and-eruption-in-a-longitudinal-sample-from-the-iowa-facial-growth-study
#6
Christina L Nicholas, Kevan Kadavy, Nathan E Holton, Teresa Marshall, Andrew Richter, Thomas Southard
INTRODUCTION: Children with high body mass index (BMI) values have been demonstrated to have precocious dental development. Research has largely focused on cross-sectional data sets, leaving an incomplete understanding of the longitudinal relationship between BMI and dental maturation. METHODS: We used a pure longitudinal growth series to examine the relationship between dental development and childhood BMI. Periapical radiographs from 77 children from the Iowa Growth Study were used to estimate dental development for those with high BMI values...
July 2018: American Journal of Orthodontics and Dentofacial Orthopedics
https://www.readbyqxmd.com/read/29957322/sleep-disordered-breathing-in-children-seeking-orthodontic-care
#7
Ashok K Rohra, Catherine A Demko, Mark G Hans, Carol Rosen, Juan Martin Palomo
INTRODUCTION: Our objective was to evaluate the prevalence of high-risk factors for sleep disordered breathing (SDB) in an orthodontic population of children. SDB is a spectrum of breathing disorders ranging from primary snoring to obstructive sleep apnea. METHODS: The sample included 303 healthy children between the ages of 9 and 17. High risk of SDB was assessed using the Pediatric Sleep Questionnaire, a validated instrument that consists of 22 questions, and high risk is defined as positive answers to 33% or more of the questions answered...
July 2018: American Journal of Orthodontics and Dentofacial Orthopedics
https://www.readbyqxmd.com/read/29957321/the-sky-is-not-the-limit
#8
LETTER
Michael C Frazier
No abstract text is available yet for this article.
July 2018: American Journal of Orthodontics and Dentofacial Orthopedics
https://www.readbyqxmd.com/read/29957320/retrospective-evaluation-of-treatment-time-and-efficiency-of-a-predictable-cantilever-system-for-orthodontic-extrusion-of-impacted-maxillary-canines
#9
Maciej Iancu Potrubacz, Claudio Chimenti, Laura Marchione, Michele Tepedino
INTRODUCTION: Orthodontic extrusion of impacted maxillary canines requires careful biomechanical planning and the use of physiologic force. The aim of this study was to evaluate the time needed for orthodontic extrusion of impactions of different severities, using a device that can predictably apply forces under 0.6 N. METHODS: Twenty-two patients who were consecutively treated were selected retrospectively, and a total of 30 impacted canines were studied. Indexes of impaction were used to measure severity on pretreatment panoramic radiographs...
July 2018: American Journal of Orthodontics and Dentofacial Orthopedics
https://www.readbyqxmd.com/read/29957319/the-way-it-really-is
#10
LETTER
Justin Hughes
No abstract text is available yet for this article.
July 2018: American Journal of Orthodontics and Dentofacial Orthopedics
https://www.readbyqxmd.com/read/29957318/accuracy-of-clear-aligners-a-retrospective-study-of-patients-who-needed-refinement
#11
Orfeas Charalampakis, Anna Iliadi, Hiroshi Ueno, Donald R Oliver, Ki Beom Kim
INTRODUCTION: The purpose of this study was to determine the accuracy of specific tooth movements with Invisalign (Align Technology, Santa Clara, Calif). METHODS: The study sample included 20 Class I adult patients treated with Invisalign; they completed their first series of aligners and had to have a "refinement" series. Initial and predicted models were obtained from the initial ClinCheck (Align Technology). The starting point of the refinement ClinCheck was used to create the achieved models...
July 2018: American Journal of Orthodontics and Dentofacial Orthopedics
https://www.readbyqxmd.com/read/29957317/thoughts-about-the-way-it-was-%C3%A2
#12
LETTER
O H Rigsbee
No abstract text is available yet for this article.
July 2018: American Journal of Orthodontics and Dentofacial Orthopedics
https://www.readbyqxmd.com/read/29957316/scoping-review-of-systematic-review-abstracts-about-temporomandibular-disorders-comparison-of-search-years-2004-and-2017
#13
REVIEW
Donald J Rinchuse, Charles S Greene
INTRODUCTION: The purposes of this study were to determine how many systematic reviews and meta-analyses relating to temporomandibular disorders (TMDs) had been published as of 2017 compared with those published as of 2004 and then to summarize the findings, based on an analysis of the abstracts from those studies. METHODS: A PubMed search was initiated on May 1, 2017. There were 2 separate searches. The first search was for the topic, "temporomandibular disorders...
July 2018: American Journal of Orthodontics and Dentofacial Orthopedics
https://www.readbyqxmd.com/read/29957315/time-for-change
#14
LETTER
James Vaden
No abstract text is available yet for this article.
July 2018: American Journal of Orthodontics and Dentofacial Orthopedics
https://www.readbyqxmd.com/read/29957314/comparative-assessment-of-treatment-efficacy-and-adverse-effects-during-nonextraction-orthodontic-treatment-of-class-i-malocclusion-patients-with-direct-and-indirect-bonding-a-parallel-randomized-clinical-trial
#15
Kübra Yıldırım, Banu Saglam-Aydinatay
INTRODUCTION: The objective of this 2-arm parallel trial was to compare the effects of direct and indirect bonding techniques on the orthodontic treatment process and outcomes. METHODS: Thirty patients were randomly assigned to undergo bonding of brackets indirectly (group A, n = 15) or directly (group B, n = 15). Eligibility criteria included permanent dentition with bilateral Angle Class I molar and canine relationships, no previous orthodontic treatment, no skeletal discrepancy, and mild or moderate crowding...
July 2018: American Journal of Orthodontics and Dentofacial Orthopedics
https://www.readbyqxmd.com/read/29957313/clinical-considerations-and-potential-liability-associated-with-the-use-of-ionizing-radiation-in-orthodontics
#16
Ahmad Abdelkarim, Laurance Jerrold
Ionizing radiation is a known carcinogen. Its damaging effects can be deterministic or stochastic. Deterministic effects occur only after radiation exposure thresholds are reached, but stochastic effects are random, and there is no known threshold below which harmful effects will not occur. Therefore, the use of ionizing radiation in orthodontic treatment should bring a benefit to the patient that outweighs the risks. No legally binding statutes, rules, or regulations provide explicit radiographic prescription protocols for orthodontic practice...
July 2018: American Journal of Orthodontics and Dentofacial Orthopedics
https://www.readbyqxmd.com/read/29957312/hybrid-approach-for-automatic-cephalometric-landmark-annotation-on-cone-beam-computed-tomography-volumes
#17
Jesús Montúfar, Marcelo Romero, Rogelio J Scougall-Vilchis
INTRODUCTION: Cone-beam computed tomography (CBCT) is commonly used for 3-dimensional (3D) evaluation and treatment planning of patients in orthodontics, where precision and reproducibility of landmark annotation are required. Manual landmarking is a time- and effort-consuming task regardless of the practitioner's experience. We introduce a hybrid algorithm for automatic cephalometric landmark annotation on CBCT volumes. METHODS: This algorithm is based on a 2-dimensional holistic search using active shape models in coronal and sagittal related projections followed by a 3D knowledge-based searching algorithm on subvolumes for local landmark adjustment...
July 2018: American Journal of Orthodontics and Dentofacial Orthopedics
https://www.readbyqxmd.com/read/29957311/no-prejudices-please
#18
EDITORIAL
Peter M Greco
No abstract text is available yet for this article.
July 2018: American Journal of Orthodontics and Dentofacial Orthopedics
https://www.readbyqxmd.com/read/29957310/conventional-surgical-orthodontic-approach-with-double-jaw-surgery-for-a-patient-with-a-skeletal-class-iii-malocclusion-stability-of-results-10-years-posttreatment
#19
Susana Maria Deon Rizzatto, Luciane Macedo de Menezes, João Julio da Cunha Filho, Susiane Allgayer
This case report presents the treatment of a young man with a skeletal Class III malocclusion. He was treated with a conventional surgical-orthodontic approach in which 2 jaw surgeries were performed. The esthetic facial profile, pleasant smile, appropriate occlusion, and overall good treatment outcome remained stable 10 years after active orthodontic treatment.
July 2018: American Journal of Orthodontics and Dentofacial Orthopedics
https://www.readbyqxmd.com/read/29957309/effects-of-lactoferrin-on-bone-resorption-of-midpalatal-suture-during-rapid-expansion-in-rats
#20
Ye Cheng, Jianfeng Sun, Zeyuan Zhou, Jie Pan, Shujuan Zou, Jianwei Chen
INTRODUCTION: The aim of this study was to investigate the effect of lactoferrin (LF) on bone resorption of rats' midpalatal sutures during rapid palatal expansion. METHODS: Sixty male 5-week-old Wistar rats were randomly divided into 3 groups: expansion only (EO), expansion plus LF (E + LF), and sham device (control). RESULTS: Microcomputed tomography showed that the bone volume/tissue volume ratio and the relative bone mineral density of the suture bone were significantly increased in the E + LF group compared with the EO group...
July 2018: American Journal of Orthodontics and Dentofacial Orthopedics
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