keyword
MENU ▼
Read by QxMD icon Read
search

orthodontic miniscrew

keyword
https://www.readbyqxmd.com/read/30080111/nonsurgical-orthodontic-treatment-of-a-hypodivergent-adult-patient-with-bilateral-posterior-scissors-bite-and-excessive-overjet
#1
Masahiro Nakamura, Noriaki Kawanabe, Rie Adachi, Takashi Yamashiro, Hiroshi Kamioka
This report illustrates successful nonsurgical orthodontic treatment of a hypodivergent adult patient with bilateral posterior scissors bite (Brodie bite) and excessive overjet. A 26-year-old woman primarily reported maxillary incisor protrusion. She was diagnosed with Class ll division 1 malocclusion with skeletal Class I, short face, low mandibular plane angle and bilateral posterior scissors bite. A lingual arch with anterior bite block and posterior miniscrews with preadjusted edgewise appliances were used to improve the bilateral scissors bite...
August 6, 2018: Angle Orthodontist
https://www.readbyqxmd.com/read/30066695/miniscrew-composition-transmucosal-profile-and-cortical-bone-thickness-a-three-dimensional-finite-element-analysis-of-stress-fields
#2
Joana Eg Yépez, Renata M Marangon, Armando Y Saga, Key F de Lima, Orlando M Tanaka
AIM: The aim of this study was to use the finite-element method (FEM) to analyze the stress fields generated in miniscrews (MSs) and surrounding bone on applying a force perpendicular to the MS according to variations in the cortical bone thickness and changes in the transmucosal profile length and MS composition. MATERIALS AND METHODS: Miniscrews with stainless steel (SS) and titanium alloy mechanical properties with a 1 to 2 mm transmucosal profile inserted in bone blocks with cortical bone of varying thickness (1 and 2 mm) were three-dimensionally modeled using computer-aided design (CAD) and examined using FEM...
July 1, 2018: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/30059839/failure-load-and-stress-analysis-of-orthodontic-miniscrews-with-different-transmucosal-collar-diameter
#3
Maria Francesca Sfondrini, Paola Gandini, Roberto Alcozer, Pekka K Vallittu, Andrea Scribante
Miniscrews have been introduced in orthodontics as temporary anchorage devices (TADs), in order to move the correct teeth and avoid other elements to slide toward a wrong direction. Moreover the ease of use of TADs encouraged clinicians to use miniscrews also for non-conventional purposes, as fixation in mandibular fracture, mini-implant supported temporary pontics, miniscrew-assisted rapid palatal expanders and distalizers. These applications develop higher forces, so TAD fracture can be an unwanted complication...
July 24, 2018: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/30014178/in-vitro-biocompatibility-of-orthodontic-miniscrews-with-human-gingival-fibroblast-and-saos-2-osteoblast-cultures
#4
Hannah Finke, Bernd Koos, Helge Fischer-Brandies, Martha Es-Souni
PURPOSE: Miniscrews are an important choice for orthodontic anchorage. Yet reports on failures do exist, and attempts have been made to elucidate the causes. Clinical outcomes may be compromised not only by the mechanical implications of miniscrew design and the location of anchorage but also by poor biocompatibility. Hence, this study deals with the surface roughness and elemental composition of miniscrews and how these properties may affect the in vitro biocompatibility of four commercially available miniscrews...
July 16, 2018: Journal of Orofacial Orthopedics, Fortschritte der Kieferorthopädie
https://www.readbyqxmd.com/read/29976856/reliability-of-orthodontic-miniscrews-bending-and-maximum-load-of-different-ti-6al-4v-titanium-and-stainless-steel-temporary-anchorage-devices-tads
#5
Andrea Scribante, Mona A Montasser, Eman Saad Radwan, Luisa Bernardinelli, Roberto Alcozer, Paola Gandini, Maria Francesca Sfondrini
Temporary anchorage devices (TADs) have been introduced into orthodontic clinical practice in order to allow tooth movements while avoiding strain on adjacent teeth. Miniscrews are available in the market with different diameters and materials. Accordingly, the purpose of the present report was to measure and compare the forces to bend and fracture different mini implants. Ti-6Al-4V titanium and stainless steel TADs of different manufacturers (Spider ScrewHDC; Mini Implants⁻Leone; Benefit⁻Orteam; Storm⁻Kristal) were evaluated...
July 5, 2018: Materials
https://www.readbyqxmd.com/read/29911067/molar-protraction-using-miniscrews-temporary-anchorage-device-with-simultaneous-correction-of-lateral-crossbite-an-orthodontic-case-report
#6
Kavitha Odathurai Marusamy, Saravanan Ramasamy, Othman Wali
Early loss of permanent teeth, congenitally missing lateral incisors or second premolars, extremely displaced or impacted canines, all result in a reduced upper dentition. That leads to the development of crossbite in the maxillary dentition. Partial denture prosthesis, dental implants, and space closure by fixed orthodontics are the various means of treating the edentulous spaces. Protraction of molars is time taking and challenging. Temporary anchorage device (TAD) helps to protract molars without anchorage loss...
May 2018: Journal of International Society of Preventive & Community Dentistry
https://www.readbyqxmd.com/read/29791686/extruded-upper-first-molar-intrusion-comparison-between-unilateral-and-bilateral-miniscrew-anchorage
#7
Mari Miura Sugii, Bruno de Castro Ferreira Barreto, Waldemir Francisco Vieira-Júnior, Katia Regina Izola Simone, Ataís Bacchi, Ricardo Armini Caldas
OBJECTIVE: The aim of his study was to evaluate the stress on tooth and alveolar bone caused by orthodontic intrusion forces in a supraerupted upper molar, by using a three-dimensional Finite Element Method (FEM). METHODS: A superior maxillary segment was modeled in the software SolidWorks 2010 (SolidWorks Corporation, Waltham, MA, USA) containing: cortical and cancellous bone, supraerupted first molar, periodontal tissue and orthodontic components. A finite element model has simulated intrusion forces of 4N onto a tooth, directed to different mini-screw locations...
January 2018: Dental Press Journal of Orthodontics
https://www.readbyqxmd.com/read/29765914/nonsurgical-treatment-and-stability-of-an-adult-with-a-severe-anterior-open-bite-malocclusion
#8
Aldo Otazú Cambiano, Guilherme Janson, Diego Coelho Lorenzoni, Daniela Gamba Garib, Dino Torres Dávalos
OBJECTIVES: A skeletal anterior open-bite is a challenging malocclusion for the orthodontist due to the difficulty and instability of correction. Treatment options for the adult patient include extractions, anterior extrusion with intermaxillary elastics, posterior intrusion using skeletal anchorage, occlusal adjustment, and orthognathic surgery. Patient compliance plays a key role in posttreatment stability. The present case report demonstrates the orthodontic treatment of an adult patient who presented with a complex open-bite malocclusion...
2018: Journal of Orthodontic Science
https://www.readbyqxmd.com/read/29709324/the-clinical-outcome-of-skeletal-anchorage-in-interceptive-treatment-in-growing-patients-for-class-iii-malocclusion
#9
REVIEW
J Meyns, D M Brasil, J F Mazzi-Chaves, C Politis, R Jacobs
A systematic review of the literature was performed regarding the clinical outcome (effectiveness) of bone anchorage devices in interceptive treatment for class III malocclusion. A search of Embase, PubMed and Web of Science databases yielded 285 papers. An additional two articles were retrieved through manual searching of the reference lists. After initial abstract selection, 32 potentially eligible articles were screened in detail, resulting in a final number of eight articles included in this review. Insufficient evidence was found regarding the effects of skeletal anchorage in interceptive class III treatment to support definitive conclusions on long-term skeletal effects and stability...
August 2018: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29691558/-study-of-three-dimensional-anatomical-relationship-between-infrazygomatic-crest-and-maxillary-sinus-for-mini-screw-insertion
#10
Peng Wang, Zheng-Xi Chen, Jun Wu, Zhen-Qi Chen
PURPOSE: To measure the thickness of the infrazygomatic(IZ) crest above the maxillary first molar and analyze its relationship with maxillary sinus as to derive clinical implications and provide guidance for placements of orthodontic mini-screw. METHODS: Thirty seven cone-beam CT(CBCT) images of infrazygomatic crest sites were collected from data of 19 adult inter-treatment orthodontic patients. Based on the relationship of maxillary sinus floor and mesiobuccal root of the maxillary first molar, the subjects were divided into high sinus floor group (n=13) and low sinus floor group (n=24)...
December 2017: Shanghai Kou Qiang Yi Xue, Shanghai Journal of Stomatology
https://www.readbyqxmd.com/read/29602342/anatomic-assessment-of-the-mandibular-buccal-shelf-for-miniscrew-insertion-in-white-patients
#11
Tarek Elshebiny, Juan Martin Palomo, Sebastian Baumgaertel
INTRODUCTION: Cortical bone thickness, bone width, insertion depth, and proximity to nerves are important factors when planning and placing orthodontic miniscrews. The objective of this study was to anatomically assess the mandibular buccal shelf in a white patient population as the insertion site for orthodontic miniscrews by investigating these 4 variables. METHODS: Measurements were made on cone-beam computed tomography scans of 30 white patients (18 girls, 12 boys; mean age, 14...
April 2018: American Journal of Orthodontics and Dentofacial Orthopedics
https://www.readbyqxmd.com/read/29581950/quantitative-evaluation-of-palatal-bone-thickness-in-patients-with-normal-and-open-vertical-skeletal-configurations-using-cone-beam-computed-tomography
#12
Piyoros Suteerapongpun, Tanapan Wattanachai, Apirum Janhom, Polbhat Tripuwabhrut, Dhirawat Jotikasthira
Purpose: To perform a comparative analysis of the palatal bone thickness in Thai patients exhibiting class I malocclusion according to whether they exhibited a normal or open vertical skeletal configuration using cone-beam computed tomography (CBCT). Materials and Methods: Thirty CBCT images of Thai orthodontic patients (15-30 years of age) exhibiting class I malocclusion with a normal or open vertical skeletal configuration were selected. Palatal bone thickness was measured in a 3...
March 2018: Imaging Science in Dentistry
https://www.readbyqxmd.com/read/29542406/miniscrews-for-orthodontic-anchorage-a-review-of-available-systems
#13
Aslam Alkadhimi, Ebrahim A Al-Awadhi
INTRODUCTION: In recent years, extensive research has introduced novel ways of reinforcing orthodontic anchorage using a variety of devices temporarily anchored in bone (miniscrews). Currently, there are numerous manufacturers with different miniscrew designs on the market. AIMS: The aim of this paper is to discuss the key design features of different miniscrew systems on the market. Furthermore, to present clinical selection criteria of miniscrews in different settings taking into account the determinant factors...
June 2018: Journal of Orthodontics
https://www.readbyqxmd.com/read/29482179/on-the-stability-efficiency-of-anchorage-self-tapping-screws-ex-vivo-experiments-on-miniscrew-implants-used-in-orthodontics
#14
Marco Migliorati, Sara Drago, Domenico Dalessandri, Alberto Lagazzo, Fabio Gallo, Marco Capurro, Armando Silvestrini-Biavati
BACKGROUND: The clinical success of orthodontic miniscrews is strictly related to primary stability, which depends on bone viscoelastic properties too. In this study, we evaluated the short time mechanical response of native bone to miniscrews, by a laboratory test based on dynamic loading. METHODS: Thirty-six segments of porcine ribs were first scanned by cone-beam computerized tomography to obtain insertion-site cortical thickness, cortical and marrow bone density...
May 2018: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/29315365/miniscrews-failure-rate-in-orthodontics-systematic-review-and-meta-analysis
#15
Fahad Alharbi, Mohammed Almuzian, David Bearn
Background: Miniscrews in orthodontics have been mainly used for anchorage without patient compliance in orthodontic treatment. The literature has reported changing failure rates. Objective: The aim of this review was to provide a precise estimation of miniscrew failure rate and the possible risk factors of the mechanically-retained miniscrews. Search method: Electronic search in database was undertaken up to July 2017 through the Cochrane Database of Systematic Reviews, MEDLINE, Scopus, and Ovid...
January 5, 2018: European Journal of Orthodontics
https://www.readbyqxmd.com/read/29302879/effectiveness-of-en-masse-versus-two-step-retraction-a-systematic-review-and-meta-analysis
#16
REVIEW
Mumen Z Rizk, Hisham Mohammed, Omar Ismael, David R Bearn
BACKGROUND: This review aims to compare the effectiveness of en masse and two-step retraction methods during orthodontic space closure regarding anchorage preservation and anterior segment retraction and to assess their effect on the duration of treatment and root resorption. METHODS: An electronic search for potentially eligible randomized controlled trials and prospective controlled trials was performed in five electronic databases up to July 2017. The process of study selection, data extraction, and quality assessment was performed by two reviewers independently...
January 5, 2018: Progress in Orthodontics
https://www.readbyqxmd.com/read/29291189/osseous-outgrowth-on-the-buccal-maxilla-associated-with-piezosurgery-assisted-en-masse-retraction-a-case-series
#17
Nilüfer İrem Tunçer, Ayça Arman-Özçırpıcı, Bahar Füsun Oduncuoğlu, Alpdoğan Kantarcı
Piezoelectric surgery is a novel surgical approach used in orthodontic treatment for rapid tooth movement. This paper presents a case series wherein osseous outgrowths were observed in response to piezosurgery-assisted en-masse retraction. Sixteen patients requiring upper premolar extractions were treated with miniscrew-supported en-masse retraction and received minimally invasive decortication via piezosurgery. Computed tomography (CT) of the maxillary anterior region was performed to investigate the nature of the outgrowths...
January 2018: Korean Journal of Orthodontics
https://www.readbyqxmd.com/read/29287652/stability-of-secondarily-inserted-orthodontic-miniscrews-after-failure-of-the-primary-insertion-for-maxillary-anchorage-maxillary-buccal-area-vs-midpalatal-suture-area
#18
COMPARATIVE STUDY
Shunsuke Uesugi, Satoshi Kokai, Zuisei Kanno, Takashi Ono
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 (20.9%) miniscrews lacked stability and were reinserted into the MB (same position or more distal position) or the MP...
January 2018: American Journal of Orthodontics and Dentofacial Orthopedics
https://www.readbyqxmd.com/read/29177754/a-review-of-biomarkers-in-peri-miniscrew-implant-crevicular-fluid-pmicf
#19
REVIEW
Avinash Kaur, Om P Kharbanda, Priyanka Kapoor, Dinesh Kalyanasundaram
BACKGROUND: The temporary anchorage devices (TADs) which include miniscrew implants (MSIs) have evolved as useful armamentarium in the management of severe malocclusions and assist in complex tooth movements. Although a multitude of factors is responsible for the primary and secondary stability of miniscrew implants, contemporary research highlights the importance of biological interface of MSI with bone and soft tissue in augmenting the success of implants. The inflammation and remodeling associated with MSI insertion or loading are reflected through biomarkers in peri-miniscrew implant crevicular fluid (PMICF) which is analogous to the gingival crevicular fluid...
November 27, 2017: Progress in Orthodontics
https://www.readbyqxmd.com/read/29160349/average-interradicular-sites-for-miniscrew-insertion-should-dental-crowding-be-considered
#20
Michele Tepedino, Paolo M Cattaneo, Francesco Masedu, Claudio Chimenti
OBJECTIVE: To define a map of interradicular spaces where miniscrew can be likely placed at a level covered by attached gingiva, and to assess if a correlation between crowding and availability of space exists. METHODS: Panoramic radiographs and digital models of 40 patients were selected according to the inclusion criteria. Interradicular spaces were measured on panoramic radiographs, while tooth size-arch length discrepancy was assessed on digital models. Statistical analysis was performed to evaluate if interradicular spaces are influenced by the presence of crowding...
September 2017: Dental Press Journal of Orthodontics
keyword
keyword
166236
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"