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https://www.readbyqxmd.com/read/28321457/influence-of-piezotomy-and-osteoperforation-of-the-alveolar-process-on-the-rate-of-orthodontic-tooth-movement-a-systematic-review
#1
Stefan Hoffmann, Nikolaos Papadopoulos, Dominik Visel, Theresa Visel, Paul-Georg Jost-Brinkmann, Thomas Michael Präger
OBJECTIVE: The minimally invasive procedures piezosurgical corticocision and osteoperforation have been advocated as methods to accelerate orthodontic tooth movement and to shorten treatment time, but without large-scale trauma of the periosteum and the bone. The aim of this study was to evaluate if there is evidence supporting these claims based on a systematic review of the literature. MATERIALS AND METHODS: A search of PubMed and Google Scholar with the combined search terms "piezo*" and "tooth movement" was performed until May 2016...
March 20, 2017: Journal of Orofacial Orthopedics, Fortschritte der Kieferorthopädie
https://www.readbyqxmd.com/read/28302667/novel-device-for-application-of-continuous-mechanical-tensile-strain-to-mammalian-cells
#2
Satoshi Wada, Hiroyuki Kanzaki, Tsuyoshi Narimiya, Yoshiki Nakamura
During orthodontic tooth movement, the periodontal ligament (PDL) is exposed to continuous mechanical strain. However, many researchers have applied cyclic tensile strain, not continuous tensile strain, to PDL cells in vitro, because there has been no adequate device to apply continuous tensile strain to cultured cells. In this study, we contrived a novel device designed to apply continuous tensile strain to cells in culture. The continuous tensile strain was applied to human immortalized periodontal ligament cell line (HPL cells) and the cytoskeletal structures of HPL cells were examined by immunohistochemistry...
March 16, 2017: Biology Open
https://www.readbyqxmd.com/read/28302337/the-accuracy-of-computer-guided-piezocision-a-prospective-clinical-pilot-study
#3
M Cassetta, M Ivani
Computer-guided piezocision can be used to overcome the disadvantages of corticotomy in accelerating orthodontic tooth movement. The aim of this clinical pilot study was to determine the accuracy of this technique. STROBE guidelines were followed. Ten patients were selected and treated. Using new dedicated planning software, the piezocision cuts were properly positioned in virtual models. A surgical guide was designed and printed with slots to guide the scalpel blade first and then the piezoelectric micro-saw...
March 13, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28301678/effectiveness-of-adjunctive-interventions-for-accelerating-orthodontic-tooth-movement-a-systematic-review-of-systematic-reviews
#4
REVIEW
Jianru Yi, Jiani Xiao, Hanshi Li, Yu Li, Xiaobing Li, Zhihe Zhao
This study was aimed to summarize published systematic reviews that assess the effects of adjunctive interventions on the acceleration of orthodontic tooth movement (OTM). Electronic and manual searches were performed up to Aug 2016. Systematic reviews investigating the impact of adjunctive techniques on the promotion of OTM were included. The methodological quality of the included reviews was evaluated using the AMSTAR scale. The quality of evidence for each intervention was assessed using GRADE. The Jadad decision algorithm was used to select a study to provide body evidence from discordant reviews on the same intervention...
March 16, 2017: Journal of Oral Rehabilitation
https://www.readbyqxmd.com/read/28299350/orthodontic-management-in-aggressive-periodontitis
#5
REVIEW
Rajesh Gyawali, Bhagabat Bhattarai
Aggressive periodontitis is a type of periodontitis with early onset and rapid progression and mostly affecting young adults who occupy a large percentage of orthodontic patients. The role of the orthodontist is important in screening the disease, making a provisional diagnosis, and referring it to a periodontist for immediate treatment. The orthodontist should be aware of the disease not only before starting the appliance therapy, but also during and after the active mechanotherapy. The orthodontic treatment plan, biomechanics, and appliance system may need to be modified to deal with the teeth having reduced periodontal support...
2017: International Scholarly Research Notices
https://www.readbyqxmd.com/read/28299281/new-bone-formation-by-orthodontic-tooth-movement-for-implant-placement
#6
Fatih Cabbar, Rahime Burcu Nur, Burcu Dikici, Ceyhun Canpolat, Gonca Duygu Capar
Bone defects at the anterior regions of the jaws often cause esthetic problems such as gingival disharmonies and longer crowns than neighboring teeth. Variety of procedures can be used in this region for achieving sufficient bone volume with or without different bone graft materials. All of these procedures has their own advantages and disadventages. New bone formation was defined with orthodontic tooth movement in different regions. In this case we present the use of orthodontic tooth movement, for achieving sufficient bone volume, in anterior maxillary region, for esthetic and functional results...
July 2016: Annals of Maxillofacial Surgery
https://www.readbyqxmd.com/read/28297096/accelerated-orthodontic-treatment-what-s-the-evidence
#7
P Miles
The demand and accessibility of orthodontic care has increased but has also been accompanied by patient requests for shorter treatment times. Longer orthodontic treatment increases the risk of decalcification, gingival recession, and root resorption and so shorter treatment times have multiple advantages as well as appealing to patient's desires. Numerous techniques and materials have been suggested to reduce treatment times but, in most cases, are based upon selected case reports with no prospective clinical trials to validate claims...
March 2017: Australian Dental Journal
https://www.readbyqxmd.com/read/28297094/clear-aligners-in-orthodontic-treatment
#8
T Weir
Since the introduction of the Tooth Positioner (TP Orthodontics) in 1944, removable appliances analogous to clear aligners have been employed for mild to moderate orthodontic tooth movements. Clear aligner therapy has been a part of orthodontic practice for decades, but has, particularly since the introduction of Invisalign appliances (Align Technology) in 1998, become an increasingly common addition to the orthodontic armamentarium. An internet search reveals at least 27 different clear aligner products currently on offer for orthodontic treatment...
March 2017: Australian Dental Journal
https://www.readbyqxmd.com/read/28297088/retention-and-relapse-in-clinical-practice
#9
S J Littlewood, S Kandasamy, G Huang
Maintaining teeth in their corrected positions following orthodontic treatment can be extremely challenging. Teeth have a tendency to move back towards the original malocclusion as a result of periodontal, gingival, occlusal and growth related factors. However, tooth movement can also occur as a result of normal age changes. Because orthodontics is unable to predict which patients are at risk of relapse, those which will remain stable and the extent of relapse that will occur in the long-term, clinicians need to treat all patients as if they have a high potential to relapse...
March 2017: Australian Dental Journal
https://www.readbyqxmd.com/read/28297087/short-term-orthodontics
#10
F McDonald
Short-term orthodontics is a growing area of clinical care delivery. Many practitioners who have not experienced specialist orthodontic education are involved in the provision of that care. Limited orthodontic treatment can provide a level of tooth movement but the essential challenge arises from the patient's expectations and their acceptance of the possible outcomes. As with all techniques, short-term orthodontics is not a panacea of care and the patient's motivation and the identification of specific cases which might benefit, is essential...
March 2017: Australian Dental Journal
https://www.readbyqxmd.com/read/28292696/influence-of-low-level-laser-therapy-on-the-healing-of-human-bone-maxillofacial-defects-a-systematic-review
#11
Carolina Dos Santos Santinoni, Hiskell Francine Fernandes Oliveira, Victor Eduardo de Souza Batista, Cleidiel Aparecido Araujo Lemos, Fellippo Ramos Verri
PURPOSE: This systematic review evaluates the effectiveness of low-level laser therapy (LLLT) to enhance maxillofacial area bone repair. METHODS: A comprehensive search of studies published up to February 2017 and listed in PubMed/MEDLINE, Scopus, and Cochrane Library databases was performed in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) statement. RESULTS: The 15 selected studies evaluated a total of 374 patients (mean age, 28...
March 7, 2017: Journal of Photochemistry and Photobiology. B, Biology
https://www.readbyqxmd.com/read/28289894/the-effect-of-low-level-laser-therapy-on-tooth-movement-during-canine-distalization
#12
Sevin Erol Üretürk, Müyesser Saraç, Sönmez Fıratlı, Şule Batu Can, Yegane Güven, Erhan Fıratlı
The aim of the study is to determine the effects of low level laser therapy on tooth movement during canine distalization by evaluating IL-1β, TGF-β1 levels in gingival crevicular fluid. Maxillary first premolars of the 15 Angle Class II division I patients (12-19 years old) were extracted. Right maxillary canines were distalized by standard protocol as control group whereas the left maxillary canines distalized by laser application. A gallium-aluminum-arsenide diode laser with an output power of 20 mW was applied as five doses from the buccal and the palatal side on the day 0, and the 3rd, 7th, 14th, 21th 30th, 33st, 37th, 60th, 63th, and 67th days...
March 14, 2017: Lasers in Medical Science
https://www.readbyqxmd.com/read/28282515/probiotic-consumption-decreases-the-number-of-osteoclasts-during-orthodontic-movement-in-mice
#13
Camila Alessandra Pazzini, Luciano José Pereira, Tarcília Aparecida da Silva, Carina Cristina Montalvany-Antonucci, Soraia Macari, Leandro Silva Marques, Saul Martins de Paiva
AIMS: The aim of the present study was to investigate the effect of probiotic (Bacillus Subtilis) supplementation on bone remodelling induced by mechanical loading. METHODS: C57BL/6 mice were divided in two groups: (1) Probiotic and (2) Vehicle (water). The probiotic (1.5×10(8)CFU/mL) was administered orally for 14 days, starting two days before the induction of orthodontic tooth movement (OTM). OTM was determined by histomorphometric analysis by comparing the right to the left side of the maxilla...
February 24, 2017: Archives of Oral Biology
https://www.readbyqxmd.com/read/28278513/il-6-enhances-osteocyte-mediated-osteoclastogenesis-by-promoting-jak2-and-rankl-activity-in-vitro
#14
Qing Wu, Xiaokang Zhou, Danqing Huang, Yingchen Ji, Feiwu Kang
BACKGROUND/AIMS: Evidence suggests that IL-6 affects bone mass by modulating osteocyte communication towards osteoclasts. However, the mechanism by which IL-6 enhances osteocyte-mediated osteoclastogenesis is unclear. We aimed to investigate the inflammatory factors in serum after orthodontic surgery and their relationship between osteocytes and osteoclasts. METHODS: Serum was obtained from 10 orthognathic surgery patients, and inflammatory factors were detected by ELISA...
March 9, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28275784/-expression-of-stat3-in-alveolar-bone-during-orthodontic-tooth-movement-in-rats
#15
Si-Ru Zhou, Qing-Gang Dai, Peng Zhang, Na-Yong Ha, Shu-Liang Yang, Ling-Yong Jiang
PURPOSE: To study the changes of expression of signal transducer and activator of transcription 3 (STAT3) during orthodontic tooth movement (OTM). METHODS: Twenty six-week-old SD rats were selected, the upper left first molars were moved by coil spring and lasted for 7 days. The maxillary tissues were obtained at 0, 1, 3, 7 d and subjected to histological study. Statistical analysis was performed using SPSS 16.0 software package. RESULTS: The main changes in alveolar bone during orthodontic tooth movement included significant increase in osteoblast number and bone formation in the tension area, and bone resorption in the pressure area...
December 2016: Shanghai Kou Qiang Yi Xue, Shanghai Journal of Stomatology
https://www.readbyqxmd.com/read/28260019/periostin-is-essential-for-periodontal-ligament-remodeling-during-orthodontic-treatment
#16
Hui-Yong Xu, Er-Min Nie, Gang Deng, Ling-Zhi Lai, Feng-Yang Sun, Hua Tian, Fu-Chun Fang, Ya-Guang Zou, Bu-Ling Wu, Jun Ou-Yang
Orthodontic tooth movement is a process stimulated and maintained by external tensile stress; periodontal ligament remodeling serves an important role during this process. However, the function and underlying mechanism of periostin (PN) during orthodontic periodontal ligament remodeling remain unclear. The present study established in vitro and in vivo models of orthodontic treatment to investigate the expression levels of PN under conditions of external tensile stress load. These results indicated that tensile stress load increased the expression levels of PN in mouse peridontal ligaments and human periodontal ligament cells (hPDLCs), during orthodontic tooth movement...
February 13, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28257738/atorvastatin-induced-osteoclast-inhibition-reduces-orthodontic-relapse
#17
Gabriel Schmidt Dolci, Luis Valmor Portela, Diogo Onofre de Souza, Anna Christina Medeiros Fossati
INTRODUCTION: The statin class of drugs enhances osteogenesis and suppresses bone resorption, which could be a plausible biologic mechanism for mitigation of orthodontic relapse. We aimed to determine whether atorvastatin (ATV) might affect orthodontic relapse and osteoclastogenesis by modulating expression of RANKL and osteoprotegerin (OPG), crucial molecules involved in bone turnover. Furthermore, we analyzed the adverse effects of ATV on femur turnover and endochondral ossification...
March 2017: American Journal of Orthodontics and Dentofacial Orthopedics
https://www.readbyqxmd.com/read/28246503/ultrasonographic-evaluation-of-periodontal-changes-during-orthodontic-tooth-movement-work-in-progress
#18
Adela Zimbran, Diana Dudea, Cristina Gasparik, Sorin Dudea
BACKGROUND AND AIM: Orthodontic tooth movement (OTM) is a process whereby the application of a force induces bone resorption on the pressure side and bone apposition on the tension side of the lamina dura. However, only limited data are available on the in vivo behavior of the periodontal tissues. The aim of this study was to assess the changes of periodontal tissues, induced by the orthodontic canine retraction, using 40 MHz ultrasonography. METHODS: Ultrasonographic evaluation of periodontal tissues was conducted in 5 patients with indication for orthodontic treatment...
2017: Clujul Medical (1957)
https://www.readbyqxmd.com/read/28243866/measuring-3d-orthodontic-actions-to-guide-clinical-treatments-involving-coil-springs-and-miniscrews
#19
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/28243299/assessment-of-the-role-of-no-cgmp-pathway-in-orthodontic-tooth-movement-using-pde5-inhibitors-an-animal-study
#20
Amir Hossein Mirhashemi, Mohammad Sadegh Ahmad Akhoundi, Rezvaneh Ghazanfari, Shahroo Etemad-Moghadam, Mojgan Alaeddini, Azam Khorshidian, Ahmad Reza Dehpour, Nafiseh Momeni
OBJECTIVES: Nitric oxide (NO) is a signaling molecule that mediates mechanical bone loading. Cyclic guanosine 3', 5' monophosphate (cGMP) is a NO-induced effector molecule. The aim of this study was to assess the effect of NO-cGMP pathway on orthodontic tooth movement (OTM) in rats by use of two phosphodiesterase 5 (PDE5) inhibitors namely sildenafil and tadalafil as chemical tools. MATERIALS AND METHODS: Forty-five male Wistar rats were divided into three equal groups (n=15) based on the substance they received...
November 2016: Journal of Dentistry of Tehran University of Medical Sciences
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