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https://www.readbyqxmd.com/read/29315365/miniscrews-failure-rate-in-orthodontics-systematic-review-and-meta-analysis
#1
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
#2
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
#3
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
#4
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/29227324/three-dimensional-evaluation-on-the-effect-of-maxillary-dentition-distalization-with-miniscrews-implanted-in-the-infrazygomatic-crest
#5
Xiaoxue Wu, Haibo Liu, Chen Luo, Yonggang Li, Yin Ding
OBJECTIVE: To evaluate the effect of the maxillary dentition distalization with miniscrews implanted in the infrazygomatic (IZ) crest with 3D reconstruction module from cone-beam computed tomography (CBCT). METHODS: Twenty patients who previously underwent dentition distalization treatment with miniscrews were recruited. A total of 40 images were obtained using CBCT, taken immediately before placement of the miniscrew anchorage and at the end of distalization. The 3D-line measurements were recorded to monitor dental changes...
December 7, 2017: Implant Dentistry
https://www.readbyqxmd.com/read/29177754/a-review-of-biomarkers-in-peri-miniscrew-implant-crevicular-fluid-pmicf
#6
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
#7
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
https://www.readbyqxmd.com/read/29130922/clinical-applications-of-the-miniscrew-anchorage-system
#8
S Jay Bowman
No abstract text is available yet for this article.
September 2017: Journal of Clinical Orthodontics: JCO
https://www.readbyqxmd.com/read/29126455/micrognathia-with-temporomandibular-joint-ankylosis-and-obstructive-sleep-apnea-treated-with-mandibular-distraction-osteogenesis-using-skeletal-anchorage-a-case-report
#9
Hiroshi Tomonari, Hiroko Takada, Tomofumi Hamada, Sangho Kwon, Tsuyoshi Sugiura, Shouichi Miyawaki
BACKGROUND: We describe the case of a 16-year-old female patient with micrognathia, temporomandibular joint (TMJ) ankylosis, and obstructive sleep apnea, who was treated with mandibular distraction osteogenesis (DO) combined with sliding genioplasty, using skeletal anchorage. CASE PRESENTATION: We first performed interpositional arthroplasty, in which an interposition of fascia temporalis and surrounding fat tissue was inserted into the defect after bilateral condylectomy, increasing the maximum mouth opening from 5...
November 10, 2017: Head & Face Medicine
https://www.readbyqxmd.com/read/29112504/miniscrew-assisted-treatment-of-a-transposed-and-horizontally-impacted-upper-central-incisor
#10
Lei Cheng, Yan Gu, Weibing Zhang, Chunyang Zhao
No abstract text is available yet for this article.
August 2017: Journal of Clinical Orthodontics: JCO
https://www.readbyqxmd.com/read/29103446/miniscrew-assisted-multidisciplinary-orthodontic-treatment-with-surgical-mandibular-advancement-and-genioplasty-in-a-brachyfacial-class-ii-patient-with-mandibular-asymmetry
#11
Vanessa Paredes-Gallardo, Verónica García-Sanz, Carlos Bellot-Arcís
This article describes the complex dental treatment of a 43-year-old man with skeletal Class II, mandibular asymmetry, severe brachyfacial pattern, Class II Division 2, canting of the occlusal plane, and an increased curve of Spee. To achieve optimal results, we adopted a multidisciplinary approach to treatment, involving periodontics, oral surgery, orthodontics, maxillofacial surgery, and prosthetics specialists. After periodontal treatment, miniscrews were placed to correct the occlusal plane canting and the excessive curve of Spee with orthodontic treatment...
November 2017: American Journal of Orthodontics and Dentofacial Orthopedics
https://www.readbyqxmd.com/read/29090123/investigation-of-the-effects-of-miniscrew-assisted-rapid-palatal-expansion-on-airflow-in-the-upper-airway-of-an-adult-patient-with-obstructive-sleep-apnea-syndrome-using-computational-fluid-structure-interaction-analysis
#12
Jae-Sik Hur, Hyoung-Ho Kim, Jin-Young Choi, Sang-Ho Suh, Seung-Hak Baek
OBJECTIVE: The objective of this study was to investigate the effects of miniscrew-assisted rapid palatal expansion (MARPE) on changes in airflow in the upper airway (UA) of an adult patient with obstructive sleep apnea syndrome (OSAS) using computational fluid-structure interaction analysis. METHODS: Three-dimensional UA models fabricated from cone beam computed tomography images obtained before (T0) and after (T1) MARPE in an adult patient with OSAS were used for computational fluid dynamics with fluid-structure interaction analysis...
November 2017: Korean Journal of Orthodontics
https://www.readbyqxmd.com/read/29071421/effect-of-drug-loaded-tio2-nanotube-arrays-on-osseointegration-in-an-orthodontic-miniscrew-an-in-vivo-pilot-study
#13
Insan Jang, Dong-Soon Choi, Jae-Kwan Lee, Wan-Tae Kim, Bong-Kuen Cha, Won-Youl Choi
Osseointegration was evaluated for the surface of miniscrews with TiO2 nanotube arrays containing drugs in this in-vivo study. The diameter and length of the TiO2 nanotube arrays were about 70 nm and 5 μm, respectively. Recombinant human bone morphogenetic protein-2 (rhBMP-2) or ibuprofen was loaded in the TiO2 nanotube arrays with 12 miniscrews. The 12 drug-loaded miniscrews, 6 miniscrews with no drug-loaded TiO2 nanotube arrays and 6 conventional miniscrews, were placed on the tibias of New Zealand white rabbits...
October 25, 2017: Biomedical Microdevices
https://www.readbyqxmd.com/read/29065641/biomechanical-effects-of-various-bone-implant-interfaces-on-the-stability-of-orthodontic-miniscrews-a-finite-element-study
#14
Fabing Tan, Chao Wang, Chongshi Yang, Yuanding Huang, Yubo Fan
INTRODUCTION: Osseointegration is required for prosthetic implant, but the various bone-implant interfaces of orthodontic miniscrews would be a great interest for the orthodontist. There is no clear consensus regarding the minimum amount of bone-implant osseointegration required for a stable miniscrew. The objective of this study was to investigate the influence of different bone-implant interfaces on the miniscrew and its surrounding tissue. METHODS: Using finite element analysis, an advanced approach representing the bone-implant interface is adopted herein, and different degrees of bone-implant osseointegration were implemented in the FE models...
2017: Journal of Healthcare Engineering
https://www.readbyqxmd.com/read/29059064/a-simple-glue-tray-guide-for-precise-miniscrew-insertion
#15
Sarabjeet Singh, Manu Rashmi Sharma, Navreet Sandhu, Aruna Ranaut
No abstract text is available yet for this article.
June 2017: Journal of Clinical Orthodontics: JCO
https://www.readbyqxmd.com/read/28985107/a-comparison-of-treatment-effects-of-total-arch-distalization-using-modified-c-palatal-plate-vs-buccal-miniscrews
#16
Sang Kyu Lee, Noha H Abbas, Mohamed Bayome, Un-Bong Baik, Yoon-Ah Kook, Mihee Hong, Jae Hyun Park
OBJECTIVE: The purpose of this study was to compare the treatment effects of palatally vs buccally placed temporary anchorage devices. MATERIALS AND METHODS: Of 40 Class II division 1 malocclusion patients, 22 were treated with modified C-palatal plate (MCPP) appliances (age 21.9 ± 6.6 years), and 18 (age 24.2 ± 6.8 years) were treated with buccally placed miniscrews between the maxillary first molar and second premolar. A total of 26 linear and angular measurements were analyzed on pre- and posttreatment lateral cephalograms...
October 6, 2017: Angle Orthodontist
https://www.readbyqxmd.com/read/28962732/insertion-torque-and-periotest-values-are-important-factors-predicting-outcome-after-orthodontic-miniscrew-placement
#17
Takashi Watanabe, Ken Miyazawa, Takuya Fujiwara, Misuzu Kawaguchi, Masako Tabuchi, Shigemi Goto
INTRODUCTION: Approximately 14% of orthodontic anchor screws (miniscrews) become dislodged regardless of the accuracy of placement. It is therefore important to investigate the factors causing dislodgement. We evaluated the stability of miniscrews after placement to identify factors influencing outcome in orthodontic treatment using miniscrews. METHODS: We investigated 120 miniscrews (Dual-top Auto Screw III; Jeil Medical, Seoul, Korea) (diameter, 1.4 mm; length, 6 mm) placed on the buccal or lingual side between the maxillary second premolar and the first molar in women...
October 2017: American Journal of Orthodontics and Dentofacial Orthopedics
https://www.readbyqxmd.com/read/28917071/quantitative-evaluation-of-palatal-bone-thickness-for-the-placement-of-orthodontic-miniscrews-in-adults-with-different-facial-types
#18
Yunji Wang, Ye Qiu, Henglang Liu, Jinlong He, Xiaoping Fan
To quantitatively evaluate palatal bone thickness in adults with different facial types using cone beam computed tomography (CBCT).  Methods: The CBCT volumetric data of 123 adults (mean age, 26.8 years) collected between August  2014 and August 2016 was retrospectively studied. The subjects were divided into a low-angle group (39 subjects), a normal-angle group (48 subjects) and a high-angle group (36 subjects) based on facial types assigned by cephalometric radiography. The thickness of the palatal bone was assessed at designated points...
October 2017: Saudi Medical Journal
https://www.readbyqxmd.com/read/28893543/effect-of-piezoelectric-sutural-ostectomies-on-accelerated-bone-borne-sutural-expansion
#19
Akram S Alyessary, Adrian U J Yap, Siti A Othman, Mohammad T Rahman, Zamri Radzi
PURPOSE: The present study investigated the effect of piezoelectric sutural ostectomies on accelerated bone-borne sutural expansion. MATERIALS AND METHODS: Sixteen male New Zealand white rabbits (20 to 24 weeks old) were randomly divided into 4 experimental groups (n = 4): group 1, conventional rapid sutural expansion; group 2, accelerated sutural expansion; group 3, accelerated sutural expansion with continuous ostectomy; and group 4, accelerated sutural expansion with discontinuous ostectomy...
August 17, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28885034/treatment-outcomes-of-class-ii-malocclusion-cases-treated-with-miniscrew-anchored-forsus-fatigue-resistant-device-a-randomized-controlled-trial
#20
Osama Eissa, Mahmoud El-Shennawy, Safaa Gaballah, Ghada El-Meehy, Tarek El Bialy
OBJECTIVE: To evaluate the skeletal, dental, and soft tissue effects of the Forsus Fatigue Resistant Device (FRD) used with miniscrew anchorage and compare them with those of the conventional Forsus FRD. MATERIALS AND METHODS: This study was carried out on 38 patients. These patients were randomly allocated into three groups. The 14 patients in group 1 (aged 12.76 ± 1.0 years) were treated with the FRD appliance. In group 2, the 15 patients (aged 12.52 ± 1.12 years) received treatment with FRD using miniscrew anchorage, and the 9 patients in group 3 (aged 12...
September 8, 2017: Angle Orthodontist
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