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American Journal of Orthodontics and Dentofacial Orthopedics

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https://www.readbyqxmd.com/read/28024792/effects-of-local-platelet-rich-plasma-injection-on-the-rate-of-orthodontic-tooth-movement-in-a-rat-model-a-histomorphometric-study
#1
Ayşegül Güleç, Banu Çakırer Bakkalbaşı, Alev Cumbul, Ünal Uslu, Burçin Alev, Ayşen Yarat
INTRODUCTION: The aims of this study were to determine the effects of different concentrations of platelet-rich plasma (PRP) on alveolar bone density and orthodontic tooth movement. METHODS: Seventy-six rats were divided into 2 groups: a moderate concentration PRP injection group (n = 38) and a high concentration PRP injection group (n = 38). In each group, 5 time points were studied: 3, 7, 14, 21, and 60 days. Before orthodontic mesialization of the maxillary first molars, moderate and high concentrations of PRP were injected on the right sides of the molar buccal sulcus, and the left sides served as the controls...
January 2017: American Journal of Orthodontics and Dentofacial Orthopedics
https://www.readbyqxmd.com/read/28024791/author-s-response
#2
LETTER
Rolf G Behrents
No abstract text is available yet for this article.
January 2017: American Journal of Orthodontics and Dentofacial Orthopedics
https://www.readbyqxmd.com/read/28024790/the-paradox-of-1-phase-vs-2-phase-orthodontic-treatment
#3
LETTER
Leonard J Carapezza
No abstract text is available yet for this article.
January 2017: American Journal of Orthodontics and Dentofacial Orthopedics
https://www.readbyqxmd.com/read/28024789/quantitative-evaluation-of-maxillary-alveolar-cortical-bone-thickness-and-density-using-computed-tomography-imaging
#4
Henry Ohiomoba, Andrew Sonis, Alfa Yansane, Bernard Friedland
INTRODUCTION: Primary stability is essential to the success of orthodontic mini-implants (OMIs) and heavily depends on the mechanical retention between OMIs and their supporting bone. Alveolar cortical bone commonly serves as the supporting bone for OMIs during treatment. The purposes of this study were to characterize alveolar cortical bone thickness and density in the maxilla and to explore patient factors that may significantly affect these bone properties. METHODS: Sixty medical computed tomography scans of the maxilla were analyzed from a selected sample of patients seen at the Radiology Department of Boston Children's Hospital...
January 2017: American Journal of Orthodontics and Dentofacial Orthopedics
https://www.readbyqxmd.com/read/28024788/authors-response
#5
LETTER
Ahmed M El-Timamy, Fouad A El-Sharaby, Faten H Eid, Yehya A Mostafa
No abstract text is available yet for this article.
January 2017: American Journal of Orthodontics and Dentofacial Orthopedics
https://www.readbyqxmd.com/read/28024787/cone-beam-computed-tomographic-evaluation-of-the-long-term-effects-of-orthodontic-retainers-on-marginal-bone-levels
#6
Anna Westerlund, Charitini Oikimoui, Maria Ransjö, Annika Ekestubbe, Andrea Bresin, Henrik Lund
INTRODUCTION: Fixed retainers are widely used after orthodontic treatment, sometimes for extended periods, despite insufficient knowledge of their possible long-term adverse effects on the periodontium. The aim of this study was to evaluate whether bonded orthodontic retainers have an adverse long-term effect on the marginal bone levels of the mandibular front teeth. METHODS: The study included 62 consecutive patients in 3 groups: (1) patients who underwent orthodontic treatment and wore a fixed retainer for 10 years, (2) patients who underwent orthodontic treatment but did not have a fixed retainer, and (3) untreated controls...
January 2017: American Journal of Orthodontics and Dentofacial Orthopedics
https://www.readbyqxmd.com/read/28024786/ethical-considerations-of-3-dimensional-imaging
#7
LETTER
Gokhan Serhat Duran, Furkan Dindaroğlu
No abstract text is available yet for this article.
January 2017: American Journal of Orthodontics and Dentofacial Orthopedics
https://www.readbyqxmd.com/read/28024785/authors-response
#8
LETTER
Ahmed M El-Timamy, Fouad A El-Sharaby, Faten H Eid, Yehya A Mostafa
No abstract text is available yet for this article.
January 2017: American Journal of Orthodontics and Dentofacial Orthopedics
https://www.readbyqxmd.com/read/28024784/assessing-the-feasibility-of-yttria-stabilized-zirconia-in-novel-designs-as-mandibular-anterior-fixed-lingual-retention-after-orthodontic-treatment
#9
Matthew M Stout, Brian K Cook, Dwayne D Arola, Hanson Fong, Ariel J Raigrodski, Anne-Marie Bollen
INTRODUCTION: The purpose of this study is to explore the feasibility of yttria-stabilized zirconia (Y-TZP) in fixed lingual retention as an alternative to stainless steel. METHODS: Exploratory Y-TZP specimens were milled to establish design parameters. Next, the specimens were milled according to ASTM standard C1161-13 and subjected to 4-point flexural tests to determine material properties. Finite element analysis was used to evaluate 9 novel cross-sectional designs, which were compared with stainless steel wire...
January 2017: American Journal of Orthodontics and Dentofacial Orthopedics
https://www.readbyqxmd.com/read/28024783/three-dimensional-imaging-for-indirect-direct-bonding-could-expose-patients-to-unnecessary-radiation
#10
LETTER
Ahmad Abdelkarim
No abstract text is available yet for this article.
January 2017: American Journal of Orthodontics and Dentofacial Orthopedics
https://www.readbyqxmd.com/read/28024782/effect-of-piezocision-on-root-resorption-associated-with-orthodontic-force-a-microcomputed-tomography-study
#11
Braydon M Patterson, Oyku Dalci, Alexandra K Papadopoulou, Suman Madukuri, Jonathan Mahon, Peter Petocz, Axel Spahr, M Ali Darendeliler
INTRODUCTION: The purpose of this study was to investigate the effect of piezocision on orthodontically induced inflammatory root resorption. METHODS: Fourteen patients were included in this split-mouth study; 1 side was assigned to piezocision, and the other side served as the control. Vertical corticotomy cuts of 4 to 5 mm in length were performed on either side of each piezocision premolar, and 150-g buccal tipping forces were applied to the premolars. After 4 weeks, the maxillary first premolars were extracted and scanned with microcomputed tomography...
January 2017: American Journal of Orthodontics and Dentofacial Orthopedics
https://www.readbyqxmd.com/read/28024781/authors-response
#12
LETTER
Chuck Carlson, Jay Sung, Ryan W McComb, Andre Wilson Machado, Won Moon
No abstract text is available yet for this article.
January 2017: American Journal of Orthodontics and Dentofacial Orthopedics
https://www.readbyqxmd.com/read/28024780/what-are-the-limits-of-microimplant-assisted-palatal-expanders
#13
LETTER
Heinz Winsauer, Andre Walter, Maria Scherfler, Oliver Ploder
No abstract text is available yet for this article.
January 2017: American Journal of Orthodontics and Dentofacial Orthopedics
https://www.readbyqxmd.com/read/28024779/early-orthodontic-treatment-for-class-iii-malocclusion-a-systematic-review-and-meta-analysis
#14
REVIEW
See Choong Woon, Badri Thiruvenkatachari
INTRODUCTION: Class III malocclusion affects between 5% and 15% of our population. The 2 most common dilemmas surrounding Class III treatment are the timing of treatment and the type of appliance. A number of appliances have been used to correct a Class III skeletal discrepancy, but there is little evidence available on their effectiveness in the long term. Similarly, early treatment of Class III malocclusion has been practiced with increasing interest. However, there has been no solid evidence on the benefits in the long term...
January 2017: American Journal of Orthodontics and Dentofacial Orthopedics
https://www.readbyqxmd.com/read/28024778/matched-analysis-for-paired-binary-data-mcnemar-test
#15
EDITORIAL
Despina Koletsi, Nikolaos Pandis
No abstract text is available yet for this article.
January 2017: American Journal of Orthodontics and Dentofacial Orthopedics
https://www.readbyqxmd.com/read/28024777/teleorthodontics
#16
EDITORIAL
Georgia Kotantoula, Miri Haisraeli-Shalish, Laurance Jerrold
No abstract text is available yet for this article.
January 2017: American Journal of Orthodontics and Dentofacial Orthopedics
https://www.readbyqxmd.com/read/28024776/comparison-of-reconstructed-rapid-prototyping-models-produced-by-3-dimensional-printing-and-conventional-stone-models-with-different-degrees-of-crowding
#17
Wan Nurazreena Wan Hassan, Yusnilawati Yusoff, Noor Azizi Mardi
INTRODUCTION: Rapid prototyping models can be reconstructed from stereolithographic digital study model data to produce hard-copy casts. In this study, we aimed to compare agreement and accuracy of measurements made with rapid prototyping and stone models for different degrees of crowding. METHODS: The Z Printer 450 (3D Systems, Rock Hill, SC) reprinted 10 sets of models for each category of crowding (mild, moderate, and severe) scanned using a structured-light scanner (Maestro 3D, AGE Solutions, Pisa, Italy)...
January 2017: American Journal of Orthodontics and Dentofacial Orthopedics
https://www.readbyqxmd.com/read/28024775/bone-resorption-under-chin-implants-the-orthodontist-s-role-in-its-diagnosis-and-management
#18
Mario Polo
Alloplastic chin implants have been a valuable treatment modality for the correction of microgenia. Their use has provided satisfactory esthetic results by improving facial balance. However, bone resorption under these implants can occur. Case reports of 4 patients with the incidental radiographic finding of the presence of chin implants are presented. All 4 subjects had lateral cephalograms and panoramic x-rays taken as part of their orthodontic evaluation. One had a normal mandibular symphyseal contour, and 3 had bone resorption under the implants...
January 2017: American Journal of Orthodontics and Dentofacial Orthopedics
https://www.readbyqxmd.com/read/28024774/three-dimensional-virtual-surgery-simulation-assisted-asymmetric-bilateral-mandibular-distraction-osteogenesis-for-a-patient-with-bilateral-condylar-fractures
#19
Myung-Jin Kim, Jihee Seo, Do-Keun Kim, Seung-Hak Baek
INTRODUCTION: Our objective was to report a patient treated with 3-dimensional virtual-surgery simulation-assisted asymmetric bilateral mandibular distraction osteogenesis. METHODS: A boy (age, 9.5 years) had mandibular hypoplasia and facial asymmetry, induced by bilateral condylar fractures at 4 years of age. The asymmetric bilateral mandibular distraction osteogenesis was planned to correct facial asymmetry and mandibular hypoplasia. The 3-dimensional virtual-surgery simulation results were 11 mm of horizontal distraction on the right side and 4...
January 2017: American Journal of Orthodontics and Dentofacial Orthopedics
https://www.readbyqxmd.com/read/28024773/comprehensive-treatment-approach-for-condylar-hyperplasia-and-mandibular-crowding-with-custom-lingual-braces-and-2-jaw-surgery
#20
Panagiotis G Kyteas, W Stuart McKenzie, Peter D Waite, Chung H Kau
We report on the successful treatment of a 32-year-old woman with condylar hyperplasia and severe mandibular crowding. In addition, her maxilla was canted to the right, her mandibular midline and chin point deviated to the left, and her maxillary canines were missing. The treatment plan included (1) aligning and leveling the teeth in both arches, (2) correcting overbite and overjet, (3) performing LeFort I osteotomy and bilateral split osteotomies, and (4) correcting the malocclusion postsurgically. The orthodontic treatment was performed with custom lingual braces and clear brackets, and virtual surgical planning techniques were used to plan the orthognathic surgery...
January 2017: American Journal of Orthodontics and Dentofacial Orthopedics
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