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https://www.readbyqxmd.com/read/29130922/clinical-applications-of-the-miniscrew-anchorage-system
#1
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
#2
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
#3
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
#4
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
#5
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
#6
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
#7
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
#8
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
#9
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
#10
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
#11
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
#12
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
#13
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
https://www.readbyqxmd.com/read/28863922/miniscrew-biomechanics-guidelines-for-the-use-of-rigid-indirect-anchorage-mechanics
#14
Sebastian Baumgaertel, Clark L Jones, Mustafa Unal
Indirect anchorage is an established form of anchorage provided by orthodontic miniscrews. Although there are different ways to set up the mechanics, rigid indirect anchorage offers the greatest biomechanical versatility but is more difficult to install than conventional, nonrigid indirect anchorage or direct anchorage. The purpose of this article was to introduce readers to the concept of rigid indirect anchorage and provide guidelines as to its use.
September 2017: American Journal of Orthodontics and Dentofacial Orthopedics
https://www.readbyqxmd.com/read/28863910/influence-of-cortical-bone-thickness-on-miniscrew-microcrack-formation
#15
Melissa V Nguyen, John Codrington, Lloyd Fletcher, Craig W Dreyer, Wayne J Sampson
INTRODUCTION: The aim of this in-vitro study was to investigate the influence of cortical bone thickness on the amount of surface microdamage produced after insertion of orthodontic miniscrews (OM) in porcine tibia bone. METHODS: Aarhus OMs (Medicon, Tuttlingen, Germany; diameter, 1.5 mm; length, 6 mm) were inserted into 1.0 mm (group A; n = 10), 1.5 mm (group B; n = 10), and 2.0 mm (group C; n = 10) of porcine cortical bone using a torque-limiting hand screwdriver set at 18 Ncm...
September 2017: American Journal of Orthodontics and Dentofacial Orthopedics
https://www.readbyqxmd.com/read/28861710/healing-of-root-and-surrounding-periodontium-after-root-damage-with-miniscrew-implants-a-histomorphologic-study-in-dogs
#16
Yingtao Lv, Zhaoqiang Zhang, Yuan Su, Peiyan Yuan, Weiqun Ma, Wenhua Huang, Pingping Xu
OBJECTIVES: The main purpose of this study was to investigate the detailed healing process of the roots and surrounding periodontium [cementum, periodontal ligament (PDL), and bone] at different time points after intentional root damage with miniscrew implants (MSIs). MATERIALS AND METHODS: After cone-beam computed tomography examination and measurement, a total of 78 premolar and molar roots from five beagle dogs were intentionally damaged by implanting miniscrews in the interradicular region...
August 31, 2017: Clinical Oral Investigations
https://www.readbyqxmd.com/read/28861393/stability-of-dental-alveolar-and-skeletal-changes-after-miniscrew-assisted-rapid-palatal-expansion
#17
Hyun-Mook Lim, Young-Chel Park, Kee-Joon Lee, Kyung-Ho Kim, Yoon Jeong Choi
OBJECTIVE: Miniscrew-assisted rapid palatal expansion (MARPE) is a means for expanding the basal bone without surgical intervention in young adults. Here, we assessed the differences in dental, alveolar, and skeletal measurements taken before (T0), immediately after (T1), and 1 year after (T2) MARPE. METHODS: Twenty-four patients (mean age, 21.6 years) who had undergone MARPE and cone-beam computed tomography at T0, T1, and T2 were included. Changes in the following parameters were compared using paired t-tests: intercusp, interapex, alveolar, nasal floor, and nasal cavity widths; inclination of the first molar (M1) and its alveolus; and thickness and height of the alveolar bone...
September 2017: Korean Journal of Orthodontics
https://www.readbyqxmd.com/read/28861392/the-effect-of-fluoride-containing-oral-rinses-on-the-corrosion-resistance-of-titanium-alloy-ti-6al-4v
#18
Gui-Yue Huang, Heng Bo Jiang, Jung-Yul Cha, Kwang-Mahn Kim, Chung-Ju Hwang
OBJECTIVE: The purpose of this study was to examine the effect of commercially available fluoride-containing oral rinses on the corrosion behavior of titanium alloys, which are the main components of orthodontic miniscrews. METHODS: Four commercially available oral rinses (solution A, pH 4.46/260 ppm fluoride; solution B, pH 4.41/178 ppm fluoride; solution C, pH 6.30/117 ppm fluoride; and solution D, pH 4.17/3.92 ppm fluoride) were tested on titanium alloy (Ti-6Al-4V) circular plates, and saline was used as the control...
September 2017: Korean Journal of Orthodontics
https://www.readbyqxmd.com/read/28760284/prognosis-of-primary-and-secondary-insertions-of-orthodontic-miniscrews-what-we-have-learned-from-500-implants
#19
Shunsuke Uesugi, Satoshi Kokai, Zuisei Kanno, Takashi Ono
INTRODUCTION: Although the success of using orthodontic miniscrews for primary insertion has been reported in the literature, few studies have followed up on secondary insertions after failure of the first insertion. In this study, we investigated not only the primary but also secondary success rates of miniscrews and considered the risk factors influencing their stability. METHODS: Five hundred miniscrews were inserted for orthodontic anchorage in 240 patients...
August 2017: American Journal of Orthodontics and Dentofacial Orthopedics
https://www.readbyqxmd.com/read/28746493/miniscrew-assisted-rapid-palatal-expansion-for-managing-arch-perimeter-in-an-adult-patient
#20
Amanda Carneiro da Cunha, Hisun Lee, Lincoln Issamu Nojima, Matilde da Cunha Gonçalves Nojima, Kee-Joon Lee
Introduction: Etiology of dental crowding may be related to arch constriction in diverse dimensions, and an appropriate manipulation of arch perimeter by intervening in basal bone discrepancies cases, may be a key for crowding relief, especially when incisors movement is limited due to underlying pathology, periodontal issues or restrictions related to soft tissue profile. Objectives: This case report illustrates a 24-year old woman, with maxillary transverse deficiency, upper and lower arches crowding, Class II, division 1, subdivision right relationship, previous upper incisors traumatic episode and straight profile...
May 2017: Dental Press Journal of Orthodontics
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