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https://www.readbyqxmd.com/read/28328995/effectiveness-of-interceptive-treatment-of-class-iii-malocclusions-with-skeletal-anchorage-a-systematic-review-and-meta-analysis
#1
Jorge Rodríguez de Guzmán-Barrera, Carla Sáez Martínez, Montserrat Boronat-Catalá, Jose María Montiel-Company, Vanessa Paredes-Gallardo, José Luís Gandía-Franco, José Manuel Almerich-Silla, Carlos Bellot-Arcís
Recently, new strategies for treating class III malocclusions have appeared. Skeletal anchorage appears to reduce the dentoalveolar effects while maximising the orthopaedic effect in growing patients. The purpose of this systematic review and meta-analysis is to examine the effectiveness of bone anchorage devices for interceptive treatment of skeletal class III malocclusions. Searches were made in the Pubmed, Embase, Scopus and Cochrane databases, as well as in a grey literature database, and were complemented by hand-searching...
2017: PloS One
https://www.readbyqxmd.com/read/28280726/developing-customized-dental-miniscrew-surgical-template-from-thermoplastic-polymer-material-using-image-superimposition-cad-system-and-3d-printing
#2
Yu-Tzu Wang, Jian-Hong Yu, Lun-Jou Lo, Pin-Hsin Hsu, CHun-Li Lin
This study integrates cone-beam computed tomography (CBCT)/laser scan image superposition, computer-aided design (CAD), and 3D printing (3DP) to develop a technology for producing customized dental (orthodontic) miniscrew surgical templates using polymer material. Maxillary bone solid models with the bone and teeth reconstructed using CBCT images and teeth and mucosa outer profile acquired using laser scanning were superimposed to allow miniscrew visual insertion planning and permit surgical template fabrication...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28257734/safe-zones-for-miniscrews-in-maxillary-dentition-distalization-assessed-with-cone-beam-computed-tomography
#3
Haibo Liu, Xiaoxue Wu, Lei Yang, Yin Ding
INTRODUCTION: The purpose of this study was to assess the anatomic structure of the buccal alveolar bone in the infrazygomatic crest region with cone-beam computed tomography to locate safe zones for miniscrews in maxillary dentition distalization. METHODS: The buccal alveolar bone was analyzed in 3 regions of 60 patients: between the maxillary second premolar and first molar (U5-U6), between the mesiodistal roots of the first molar (U6), and between the maxillary first and second molars (U6-U7)...
March 2017: American Journal of Orthodontics and Dentofacial Orthopedics
https://www.readbyqxmd.com/read/28257728/effectiveness-of-orthodontic-miniscrew-implants-in-anchorage-reinforcement-during-en-masse-retraction-a-systematic-review-and-meta-analysis
#4
REVIEW
Joanna Antoszewska-Smith, Michał Sarul, Jan Łyczek, Tomasz Konopka, Beata Kawala
INTRODUCTION: The aim of this systematic review was to compare the effectiveness of orthodontic miniscrew implants-temporary intraoral skeletal anchorage devices (TISADs)-in anchorage reinforcement during en-masse retraction in relation to conventional methods of anchorage. METHODS: A search of PubMed, Embase, Cochrane Central Register of Controlled Trials, and Web of Science was performed. The keywords were orthodontic, mini-implants, miniscrews, miniplates, and temporary anchorage device...
March 2017: American Journal of Orthodontics and Dentofacial Orthopedics
https://www.readbyqxmd.com/read/28245438/an-upper-molar-distalizer-with-palatal-miniscrew-anchorage
#5
Ayman El Nigoumi
No abstract text is available yet for this article.
December 2016: Journal of Clinical Orthodontics: JCO
https://www.readbyqxmd.com/read/28243866/measuring-3d-orthodontic-actions-to-guide-clinical-treatments-involving-coil-springs-and-miniscrews
#6
Margherita Mencattelli, Elisa Donati, Pasqua Spinelli, Massimo Cultrone, Cesare Luzi, Daniele Cantarella, Cesare Stefanini
The understanding of the phenomena at the base of tooth movement, due to orthodontic therapy, is an ambitious topic especially with regard to the "optimal forces" able to move teeth without causing irreversible tissue damages. To this aim, a measuring platform for detecting 3D orthodontic actions has been developed. It consists of customized load cells and dedicated acquisition electronics. The force sensors are able to detect, simultaneously and independently of each other, the six orthodontic components which a tooth is affected by...
March 2017: Biomedical Microdevices
https://www.readbyqxmd.com/read/28127540/total-intrusion-and-distalization-of-the-maxillary-arch-to-improve-smile-esthetics
#7
Eui Seon Baek, Soonshin Hwang, Kyung-Ho Kim, Chooryung J Chung
This case report illustrates the successful treatment of a patient with skeletal Class II malocclusion and an unesthetic smile involving excessive gingival display and large buccal corridors. By applying dual buccal interradicular miniscrews, total intrusion of the maxillary dentition along with distalization was induced to improve both the occlusion and smile esthetics. In addition to the conventional cephalometric superimposition, three-dimensional superimposition was performed and evaluated to validate the treatment outcome...
January 2017: Korean Journal of Orthodontics
https://www.readbyqxmd.com/read/28114243/facial-growth-patterns-and-insertion-sites-of-miniscrew-implants
#8
Fariborz Amini, Minoo Alipanahi, Vahid Rakhshan, Shahriar Shahab, Anooshe Niktash
INTRODUCTION: We aimed to evaluate the associations between the craniofacial growth pattern with interradicular distances (IRDs), cortical widths (CWs), and jaw heights (JHs). Also, we mapped safe zones for miniscrew implantation. METHODS: Cone-beam computerized tomography data pertaining to 60 Class-I patients were divided into 3 growth groups: normal, horizontal, and vertical. IRDs and CWs were measured for bimaxillary canines to second molars, on buccal and lingual sides, at 3 transverse planes (1, 3, and 5 mm apically to the alveolar crest)...
February 2017: Implant Dentistry
https://www.readbyqxmd.com/read/28107130/the-use-of-miniscrews-in-orthodontics-a-review-of-selected-clinical-applications
#9
Eliakim Mizrahi
This paper provides a brief review of the history and development of mini screws and presents its structural features, with particular reference to the screw sizes relevant to clinical orthodontics, site selection and the different placement techniques. It covers the clinical applications of miniscrews, incorporating the principle of direct and indirect anchorage as well as the use of intraoral auxiliaries for distal movement of molars. The role of palatal miniscrews for retraction of anterior teeth, and when used in combination with buccal miniscrews for intrusion of buccal teeth is also covered along with the possible causes of miniscrew failure...
November 1, 2016: Primary Dental Journal
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
#10
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
#11
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
#12
Woo Shik Jeong, Jong Woo Choi, Do Yeon Kim, Jang Yeol Lee, Soon Man 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...
April 2017: 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
#13
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
#14
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
#15
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
#16
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
#17
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
#18
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
#19
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
#20
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
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