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https://www.readbyqxmd.com/read/28045812/miniplate-with-a-bendable-c-tube-head-allows-the-clinician-to-alter-biomechanical-advantage-in-extremely-complicated-anatomic-structure
#1
Kyung Won Seo, Nur Serife Iskenderoglu, Eui Hwan Hwang, Kyu-Rhim Chung, Seong-Hun Kim
BACKGROUNDS: This article reports C-tube miniplates as a practical temporary anchorage device choice to treat open bite patients with maxillary sinus pneumatization. METHODS: The C-tube components are titanium anchor plates and monocortical screws that are basically similar to any other miniplate systems, but it has the unique characteristic of the tube head to be malleable. The manipulation of the head part is easy due to the composition of pure titanium. The I-shaped C-tube with 3 holes and T-shaped C-tube miniplates were placed above the apices of maxillary molars as an absolute anchorage system to intrude the posterior maxilla...
December 30, 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28045320/extrusion-of-severely-impacted-mandibular-first-molar-using-partial-orthodontics-and-temporary-anchorage-miniscrews
#2
R Rodriguez Y Baena, M S Lupi, G Ceriana, M F Sfondrini, A Scribante
BACKGROUND: This study reports a case in which a severely impacted lower first molar was recovered with a combined orthodontic therapy and minimally invasive oral surgery with special focus to patient's aesthetic demands. CASE REPORT: A 12-year- old female patient was complaining delayed eruption of mandibular right first molar. Radiographic exam showed a severe tooth impaction with a close relationship between tooth roots and mandibular nerve. As the patient refused full arches orthodontic treatment, a partial orthodontic approach was projected...
December 2016: European Journal of Paediatric Dentistry: Official Journal of European Academy of Paediatric Dentistry
https://www.readbyqxmd.com/read/28043746/can-a-surgery-first-orthognathic-approach-reduce-the-total-treatment-time
#3
W S Jeong, J W Choi, D Y Kim, J Y Lee, S M Kwon
Although pre-surgical orthodontic treatment has been accepted as a necessary process for stable orthognathic correction in the traditional orthognathic approach, recent advances in the application of miniscrews and in the pre-surgical simulation of orthodontic management using dental models have shown that it is possible to perform a surgery-first orthognathic approach without pre-surgical orthodontic treatment. This prospective study investigated the surgical outcomes of patients with diagnosed skeletal class III dentofacial deformities who underwent orthognathic surgery between December 2007 and December 2014...
December 30, 2016: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28024761/displacement-and-stress-distribution-by-different-bone-borne-palatal-expanders-with-facemask-a-3-dimensional-finite-element-analysis
#4
Jae Hyun Park, Mohamed Bayome, James J Zahrowski, Yoon-Ah Kook
INTRODUCTION: The purpose of this study was to analyze displacement and stress distribution in the maxilla during maxillary expansion followed by protraction using bone-borne and conventional tooth-borne palatal expanders and a facemask via 3-dimensional finite element analysis. METHODS: A finite element model of an adolescent skull was created, and 4 different types of appliances were integrated into it: facemask (type A); facemask with paramedian bone-borne expander (type B), facemask with palatal-slope bone-borne expander (type C), and facemask with conventional expander (type D)...
January 2017: American Journal of Orthodontics and Dentofacial Orthopedics
https://www.readbyqxmd.com/read/27980339/no-confidence-that-success-rates-of-self-drilling-and-self-tapping-insertion-techniques-of-orthodontic-mini-implants-are-similar
#5
Reint Meursinge Reynders, Giorgio Cacciatore
Data sourcesMedline, Cochrane Central Register of Controlled Trials (CENTRAL), Embase, China National Knowledge Infrastructure (CNKI) and SIGLE.Study selectionRandomised controlled trials(RCTs), clinical controlled trials (CCTs) and cohort studies that assessed the success/failure rates of self-drilling and self-tapping mini-screws for orthodontic anchorage were considered.Data extraction and synthesisData was abstracted and assessed for quality by two reviewers independently. The Newcastle-Ottawa scale (NOS) was used to evaluate the methodological quality...
December 2016: Evidence-based Dentistry
https://www.readbyqxmd.com/read/27980330/patient-and-miniscrew-implant-factors-influence-the-success-of-orthodontic-miniscrew-implants
#6
Kelvin I Afrashtehfar
Data sourcesMedline via PubMed, Scopus and Web of Science databases were searched from January 2003 to March 2015 limited to human studies published in English. Manual searches for the relevant reference lists and a grey literature search via Google Scholar were also conducted.Study selectionProspective and retrospective studies about the stability of miniscrew implants (MIs) used for orthodontic anchorage into the posterior buccal region were considered. Two review authors independently assessed titles and abstracts, and evaluated full manuscripts for the meta-analysis...
December 2016: Evidence-based Dentistry
https://www.readbyqxmd.com/read/27938655/-a-perspective-on-the-use-of-bone-anchorage-as-opposed-to-other-types-of-anchorage-techniques
#7
Michel Le Gall, Émilie Chevalier, Christophe Bachet, Cyril Dameron, Damienne Dorison-Bachet, Camille Philip-Alliez
INTRODUCTION: To convert our objectives into the desired treatment results, we need to control our mechanics and thus the anchorage used by avoiding any unwanted movements. It now seems unthinkable, at the dawn of the 21(st) century, to ignore the useful contribution of orthodontic screw-borne anchorage. Nevertheless, we are entitled to raise a number of legitimate questions. Do these forms of anchorage offer an alternative to all types of mechanics? Will they permit us to manage clinical situations which are beyond the scope of a more classical approach? Can they enhance the quality of our treatments? MATERIALS AND METHODS: Each of the authors describes clinical situations using screw-borne anchorage and compares with a conventional approach in order to make a non-exhaustive analysis of the mechanics applied, in their own office, and then highlights the most effective technique...
December 2016: L' Orthodontie Française
https://www.readbyqxmd.com/read/27925236/stresses-and-strains-analysis-using-different-palatal-expander-appliances-in-upper-jaw-and-midpalatal-suture
#8
Larissa Carvalho Trojan, Libardo Andrés González-Torres, Ana Claudia Moreira Melo, Estevam Barbosa de Las Casas
Rapid maxillary expansion (RME) is the technique of increasing the transverse dimension of the upper jaw using lateral forces applied by palatal expander. Usually, this palatal appliance is anchored on posterior teeth. The purposes of this computer simulation study were to analyze the stress and strain distribution generated in the maxilla, mainly in midpalatal suture (MPS), during RME by tooth-borne and bone-borne expanders and to study the correlation between mechanical strain and Wolff's Law. The analysis was performed with finite element models developed based on Cone Beam computed tomography (CT)...
December 7, 2016: Artificial Organs
https://www.readbyqxmd.com/read/27915135/primary-stability-and-viscoelastic-displacement-of-mini-implant-system-under-loading
#9
Jim Lee, Yong-Hoon Jeong, Joseph Pittman, Toru Deguchi, William M Johnston, Henry W Fields, Do-Gyoon Kim
BACKGROUND: The objectives of the current study were to examine the effects of mini-implant diameters on 1) primary stability before bone properties are changed by active peri-implant bone remodeling and 2) the time-dependent displacement of mini-implant systems in bone under a functional radial loading and their associations with bone mineral density. METHODS: Twenty one, 8mm length mini-implants (7 each for 1.4mm, 1.6mm, and 2mm diameters) were placed in mandibular sections of human cadavers (4 males and 3 females, average 69...
November 24, 2016: Clinical Biomechanics
https://www.readbyqxmd.com/read/27894544/effect-of-longitudinal-flutes-on-miniscrew-implant-stability-and-3-dimensional-bone-formation
#10
Peter An V Truong, Phillip M Campbell, Elias D Kontogiorgos, Reginald W Taylor, Hee-Moon Kyung, Peter H Buschang
INTRODUCTION: The purpose of this study was to evaluate the effects of longitudinal flutes on miniscrew implant (MSI) stability and bone healing. METHODS: Using 11 skeletally mature New Zealand white rabbits, we placed 31 longitudinally fluted and 31 nonfluted, 3-mm-long MSIs in standardized positions in their calvaria and immediately loaded them with 100 g using nickel-titanium coil springs. Insertion torque values were obtained for each MSI placed; removal torque values were obtained for 28 MSIs that had been in place for 6 weeks and 20 MSIs that had been in place for 2 weeks...
December 2016: American Journal of Orthodontics and Dentofacial Orthopedics
https://www.readbyqxmd.com/read/27894525/canine-lateral-incisor-transposition-controlling-root-resorption-with-a-bone-anchored-t-loop-retraction
#11
Yu Lin Hsu, Chris H Chang, W Eugene Roberts
A 12-year-old girl presented with a Class II Division 1 malocclusion, complicated by a complete transposition of the maxillary left canine into the position normally occupied by the left lateral incisor. Dental and medical histories were noncontributory. Brackets were bonded on all maxillary teeth, from first molar to first molar, except for the left lateral incisor. Because the lateral incisor was not engaged on the archwire, the tooth was free to physiologically move out of the path of canine root movement...
December 2016: American Journal of Orthodontics and Dentofacial Orthopedics
https://www.readbyqxmd.com/read/27888653/simultaneous-intrusion-and-distalization-using-miniscrews-in-the-maxillary-tuberosity
#12
Vincente Javier Sada Garralda
No abstract text is available yet for this article.
October 2016: Journal of Clinical Orthodontics: JCO
https://www.readbyqxmd.com/read/27809217/management-of-a-subgingivally-fractured-tooth-with-miniscrew-anchored-extrusion
#13
Ahmed Hashim, Ahmed Shaz, Nandish Shetty, Akhter Husain
No abstract text is available yet for this article.
September 2016: Journal of Clinical Orthodontics: JCO
https://www.readbyqxmd.com/read/27783770/risk-factors-associated-with-the-failure-of-miniscrews-a-ten-year-cross-sectional-study
#14
Ana Cláudia Moreira Melo, Augusto Ricardo Andrighetto, Suélen Darab Hirt, Ana Luiza Melo Bongiolo, Siddhartha Uhrigshardt Silva, Marcos André Duarte da Silva
The aims of this study were to identify (1) patient-related factors (sex, age, craniofacial pattern and smoking habit), (2) miniscrews implants (MSI)-related factors (length and diameter) and (3) location-related factors [bone (maxilla or mandible) and area (buccal, lingual and alveolar ridge)] that may be associated with MSI loss of stability. A total of 1356 MSI were installed in 570 patients (423 females and 147 males) with mean age of 42.7 during a 10-year period and were clinically evaluated once a month until the end of the proposed movement...
October 24, 2016: Brazilian Oral Research
https://www.readbyqxmd.com/read/27768390/unpredictability-of-soft-tissue-changes-after-camouflage-treatment-of-class-ii-division-1-malocclusion-with-maximum-anterior-retraction-using-miniscrews
#15
Kayoung Kim, Sung-Hwan Choi, Eun-Hee Choi, Yoon-Jeong Choi, Chung-Ju Hwang, Jung-Yul Cha
OBJECTIVE: To compare soft and hard tissue responses based on the degree of maxillary incisor retraction using maximum anchorage in patients with Class II Division 1 malocclusion. MATERIALS AND METHODS: This retrospective study sample was divided into moderate retraction (<8.0 mm; n = 28) and maximum retraction (≥8.0 mm; n = 29) groups based on the amount of maxillary incisor retraction after extraction of the maxillary and mandibular first premolars for camouflage treatment...
September 19, 2016: Angle Orthodontist
https://www.readbyqxmd.com/read/27721829/corrigendum-to-a-study-of-success-rate-of-miniscrew-implants-as-temporary-anchorage-devices-in-singapore
#16
Yi Lin Song, Mimi Yow, Ming Tak Chew, Kelvin Weng Chiong Foong, Hung Chew Wong
[This corrects the article DOI: 10.1155/2015/294670.].
2016: International Journal of Dentistry
https://www.readbyqxmd.com/read/27710951/correction-of-unilateral-complete-buccal-crossbite-with-miniscrew-anchorage
#17
Shin-Huei Wang, Yi-Hung Shih, Johnny J L Liaw
No abstract text is available yet for this article.
August 2016: Journal of Clinical Orthodontics: JCO
https://www.readbyqxmd.com/read/27710949/rapid-maxillary-expansion-and-upper-molar-distalization-with-a-miniscrew-supported-hybrid-appliance
#18
Jan Hourfar, Charles J Ruff, Benedict Wilmes, Bjorn Ludwig, Georgios Kanavakis
No abstract text is available yet for this article.
August 2016: Journal of Clinical Orthodontics: JCO
https://www.readbyqxmd.com/read/27692426/adult-skeletal-class-ii-high-angle-case-treated-with-a-fully-customized-lingual-bracket-appliance
#19
Toru Inami, Yuko Nakano, Ken Miyazawa, Masako Tabuchi, Shigemi Goto
To achieve optimum occlusal and facial results in a patient with high-angle maxillary protrusion, it is important to move Point A back with retraction of the anterior teeth and prevent clockwise rotation of the mandible through good vertical control. A woman, aged 42 years 5 months, with a protrusive profile sought lingual orthodontic treatment. She had a skeletal Class II high-angle pattern with maxillary protrusion and mandibular retrusion. The extraction of the 4 first premolars was indicated to correct the problems...
October 2016: American Journal of Orthodontics and Dentofacial Orthopedics
https://www.readbyqxmd.com/read/27692423/determination-of-soft-tissue-thickness-at-orthodontic-miniscrew-placement-sites-using-ultrasonography-for-customizing-screw-selection
#20
Renu Parmar, Vijay Reddy, Satheesh Kumar Reddy, Deepti Reddy
INTRODUCTION: A wide variety of factors affect the success of orthodontic miniscrews in clinical situations, including thickness of the soft tissues. Our objectives were to assess area-related and sex-related differences in the soft tissue thicknesses of the buccal attached gingiva of the maxilla and the mandible, and the palatal masticatory mucosa at common orthodontic miniscrew placement sites, and to prescribe a guideline for miniscrew selection for a predictable clinical outcome. METHODS: The sample consisted of 32 randomly selected adults in the age group of 20 to 25 years...
October 2016: American Journal of Orthodontics and Dentofacial Orthopedics
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