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https://www.readbyqxmd.com/read/29661677/orthodontic-periodontal-interactions-orthodontic-extrusion-in-interdisciplinary-regenerative-treatments
#1
Maria Giacinta Paolone, Roberto Kaitsas
Orthodontics is a periodontal treatment. "Guided orthodontic regeneration" (GOR) procedures use orthodontic movements in perio-restorative patients. The GOR technique includes a guided orthodontic "soft tissue" regeneration (GOTR) and a guided orthodontic "bone" regeneration (GOBR) with a plastic soft tissue approach and a regenerating reality. The increased amount of soft tissue gained with orthodontic movement can be used for subsequent periodontal regenerative techniques. The increased amount of bone can as well improve primary implant stability and, eventually, simplify a GTR technique to regenerate soft tissues, to restore tooth with external resorption in aesthetic zone or to extract a tooth to create new hard-soft tissue for adjacent teeth...
April 13, 2018: International Orthodontics
https://www.readbyqxmd.com/read/29658096/effect-of-low-level-laser-and-low-intensity-pulsed-ultrasound-therapy-on-bone-remodeling-during-orthodontic-tooth-movement-in-rats
#2
Mohammed Mahmood Jawad Alazzawi, Adam Husein, Mohammad Khursheed Alam, Rozita Hassan, Rumaizi Shaari, Ahmad Azlina, M S Salzihan
BACKGROUND: Quality bone regeneration, which leads to the improvement of bone remodeling, is essential for orthodontic treatment. In order to improve bone regeneration and increase the amount of tooth movement, different techniques have been implemented. The object of this study is to compare the effects of low-level laser therapy (LLLT), low-intensity pulsed ultrasound (LIPUS), and their combination on bone remodeling during orthodontic tooth movement. METHODS: Eighty (80) male, 6-week-old Sprague Dawley rats were grouped in to four groups, the first group was irradiated with (940 nm) diode laser, second group with LIPUS, and third group with combination of both LLLT and LIPUS...
April 16, 2018: Progress in Orthodontics
https://www.readbyqxmd.com/read/29655409/orthodontic-tooth-movement-the-biology-and-clinical-implications
#3
REVIEW
Yina Li, Laura A Jacox, Shannyn H Little, Ching-Chang Ko
Orthodontic tooth movement relies on coordinated tissue resorption and formation in the surrounding bone and periodontal ligament. Tooth loading causes local hypoxia and fluid flow, initiating an aseptic inflammatory cascade culminating in osteoclast resorption in areas of compression and osteoblast deposition in areas of tension. Compression and tension are associated with particular signaling factors, establishing local gradients to regulate remodeling of the bone and periodontal ligament for tooth displacement...
April 2018: Kaohsiung Journal of Medical Sciences
https://www.readbyqxmd.com/read/29644572/low-magnitude-forces-for-bone-modeling-and-remodeling-in-dentofacial-orthopedics
#4
REVIEW
Achint Utreja
PURPOSE OF REVIEW: To examine the evidence in support of light continuous forces for enhancing bone adaptation (modeling and remodeling) in orthodontics and dentofacial orthopedics. RECENT FINDINGS: Clinical evidence suggests that light continuous orthodontic force can achieve physiologic expansion of the maxillary arch, but the long-term stability and the biological effects of the procedure are unclear. Compared to conventional orthodontic appliances that deliver heavy interrupted forces for tooth movement, the application of low-magnitude forces in animal models leads to anabolic modeling and remodeling of the alveolar bone in the path of orthodontic tooth movement...
April 11, 2018: Current Osteoporosis Reports
https://www.readbyqxmd.com/read/29643818/intrinsic-hormone-like-molecules-and-external-root-resorption-during-orthodontic-tooth-movement-a-systematic-review-and-meta-analysis-in-preclinical-in-vivo-research
#5
Andreas Spoerri, Despina Koletsi, Theodore Eliades
Background: External root resorption constitutes an adverse effect of orthodontic treatment. The aim of the present meta-analysis was to identify the effect of induced intrinsic/ hormone-like molecules such as prostaglandins, interleukins and others on external root resorption after orthodontic tooth movement in experimental animals Methods: An electronic database search of the literature was performed (Medline via PubMed, EMBASE, LILACS, and Open Gray). Search terms included root resorption, tooth movement and animal type...
2018: Frontiers in Physiology
https://www.readbyqxmd.com/read/29643526/-exploring-a-new-method-for-superimposition-of-pre-treatment-and-post-treatment-mandibular-digital-dental-casts-in-adults
#6
F F Dai, Y Liu, T M Xu, G Chen
OBJECTIVE: To explore a cone beam computed tomography (CBCT)-independent method for mandibular digital dental cast superimposition to evaluate three-dimensional (3D) mandibular tooth movement after orthodontic treatment in adults, and to evaluate the accuracy of this method. METHODS: Fifteen post-extraction orthodontic treatment adults from the Department of Orthodontics, Peking University School and Hospital of Stomatology were included. All the patients had four first premolars extracted, and were treated with straight wire appliance...
April 18, 2018: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/29609723/tooth-movement-associated-with-cpap-therapy
#7
Benjamin T Pliska, Fernanda R Almeida
We report on a rarely documented side effect-tooth movement-associated with positive airway pressure therapy. A 64-year-old woman presented to an orthodontic practice for evaluation of unexplained tooth movement and spaces opening between her anterior teeth. The patient recently received a diagnosis of mild obstructive sleep apnea, for which she had been using continuous positive airway pressure (CPAP) delivered by a nasal pillows interface for the past 18 months. Follow-up questioning revealed that shifting of the teeth was first noticed in the months following the initiation of CPAP and the result of forward thrusting of the tongue during use...
March 30, 2018: Journal of Clinical Sleep Medicine: JCSM: Official Publication of the American Academy of Sleep Medicine
https://www.readbyqxmd.com/read/29608684/microsphere-controlled-drug-delivery-for-local-control-of-tooth-movement
#8
Inna Sydorak, Ming Dang, Sarah J Baxter, Michael Halcomb, Peter Ma, Sunil Kapila, Nan Hatch
Background: Because orthodontic tooth movement is dependent upon osteoclast-mediated resorption of alveolar bone adjacent to the pressure side of tooth roots, biologic mediators that regulate osteoclasts can be utilized to control tooth movement. Objectives: To develop a novel method to locally enhance orthodontic anchorage. Methods: We encapsulated osteoprotegerin (OPG) in polymer microspheres and tested the effectiveness of microsphere encapsulated versus non-encapsulated OPG for enhancing orthodontic anchorage in a rodent model of tooth movement...
March 28, 2018: European Journal of Orthodontics
https://www.readbyqxmd.com/read/29607672/lithium-chloride-reduces-orthodontically-induced-root-resorption-and-affects-tooth-root-movement-in-rats
#9
Airi Ino-Kondo, Hitoshi Hotokezaka, Takanobu Kondo, Keira Arizono, Megumi Hashimoto, Yuka Hotokezaka, Takeshi Kurohama, Yukiko Morita, Noriaki Yoshida
OBJECTIVE: To investigate the influence of lithium chloride (LiCl) on orthodontic tooth movement (OTM), orthodontically induced root resorption (OIRR), and bone morphometry. MATERIALS AND METHODS: Ten-week-old female Sprague Dawley rats (n = 32) were divided into four groups based on the concentration of LiCl administered daily per kilogram body weight: 0 (control group), 0.32, 0.64, and 1.28 mM/kg body weight. The maxillary left first molars were moved mesially by a 10 cN coil spring for 14 days...
April 2, 2018: Angle Orthodontist
https://www.readbyqxmd.com/read/29603740/nicotine-inhibits-osteogenic-differentiation-of-human-periodontal-ligament-cells-under-cyclic-tensile-stress-through-canonical-wnt-pathway-and-%C3%AE-7-nicotinic-acetylcholine-receptor
#10
W Yu, B Hu, X Shi, Z Cao, M Ren, Z He, J Lin, H Deng, R Hu
BACKGROUND AND OBJECTIVES: Nicotine, the main psychoactive component of tobacco, affects cell metabolism, proliferation, adhesion and, importantly, the osteogenic differentiation of fibroblasts. Approximately 15% of all orthodontic patients are adults among who one-fifth are smokers. Hence, it is necessary to have insight into the effects of nicotine on the osteogenic differentiation of hPDLCs during orthodontic tooth movement. This study aimed to investigate the effects and mechanisms of nicotine on the osteogenic differentiation of human periodontal ligament cells (hPDLCs) under the application of cyclic tensile stress...
March 30, 2018: Journal of Periodontal Research
https://www.readbyqxmd.com/read/29602351/expanding-torque-possibilities-a-skeletally-anchored-torqued-cantilever-for-uprighting-kissing-molars
#11
Sérgio Estelita Barros, Guilherme Janson, Kelly Chiqueto, Eduardo Ferreira, Cassiano Rösing
Several uprighting mechanics and devices have been used for repositioning tipped molars. "Kissing molars" (KMs) are an uncommon tooth impaction involving 2 severely tipped mandibular molars with their occlusal surfaces positioned crown to crown, with the roots pointing in opposite directions. Orthodontic uprighting of KMs has not been a usual treatment protocol, and it can be a challenging task due to the severe tipping and double impaction, requiring efficient and well-controlled uprighting mechanics...
April 2018: American Journal of Orthodontics and Dentofacial Orthopedics
https://www.readbyqxmd.com/read/29602349/contemporary-class-ii-division-2-nonextraction-adult-treatment
#12
Roberto Hernández-Orsini, Juan Silva-Coll
Achieving ideal results when treating a difficult malocclusion is a challenge that orthodontists frequently encounter. Maintaining those results is sometimes more challenging than the correction itself. As specialists in orthodontics, we should be able to apply bone physiology concepts during the diagnosis and treatment planning process and predict how bone will react after biomechanical stimuli. Understanding bone physiology and the biology of tissue response during orthodontic tooth movement should allow us to develop the proper mechanical design and consequently the therapeutic procedures necessary to achieve the expected tooth position and bone architecture...
April 2018: American Journal of Orthodontics and Dentofacial Orthopedics
https://www.readbyqxmd.com/read/29602347/orthodontic-treatment-in-patients-with-aggressive-periodontitis
#13
Cássio Volponi Carvalho, Luciana Saraiva, Flávio Paim Falcão Bauer, Rui Yoshio Kimura, Maria Luisa Silveira Souto, Carlos Cheque Bernardo, Cláudio Mendes Pannuti, Giuseppe Alexandre Romito, Francisco Emílio Pustiglioni
INTRODUCTION: Aggressive periodontitis (AP) is a condition that promotes breakdown of the periodontal tissues in a short time. In severe cases, pathologic migration of teeth and tooth loss can occur, producing esthetic and functional problems for the patient. Orthodontic treatment may be recommended to restore esthetics and masticatory function. We assessed the effects of orthodontic movement in the periodontal tissues of treated patients with AP. METHODS: Ten subjects (ages 25...
April 2018: American Journal of Orthodontics and Dentofacial Orthopedics
https://www.readbyqxmd.com/read/29602341/epidemiologic-study-of-orthodontic-retention-procedures
#14
Jens A D Padmos, Piotr S Fudalej, Anne Marie Renkema
INTRODUCTION: The aims of this study were to survey current retention procedures applied by Dutch orthodontists and to examine their acquaintance with "unintentionally active retainers." METHODS: A questionnaire was sent to all 306 Dutch orthodontists involved in patient treatment. Questions were clustered in 4 parts: (1) general information, (2) retention procedures, (3) characteristics of wire materials for bonded retainers, and (4) acquaintance with "unintentionally active retainers...
April 2018: American Journal of Orthodontics and Dentofacial Orthopedics
https://www.readbyqxmd.com/read/29599594/evaluation-of-low-level-laser-therapy-on-orthodontic-tooth-movement-a-randomized-control-study
#15
Guneet Guram, Rajesh Kumar Reddy, Anand M Dharamsi, Prabhu Mahin Syed Ismail, Samvit Mishra, M Dave Prakashkumar
Background: Fixed orthodontic treatment is time-consuming procedure. Pain is usually associated with orthodontic treatment. The aim of the present study was to evaluate the role of low-level laser therapy (LLLT) on orthodontic tooth movement (OTM) duration and pain perception. Materials and Methods: This randomized double-blind splint-mouth controlled clinical study includes 20 (8 males and 12 females) orthodontic patients requiring bilateral canine retraction. Time taken for canine retraction with LLLT (Group A) over control (Group B) quadrant on the same patient was assessed along with pain experience using facial pain scale...
January 2018: Contemporary Clinical Dentistry
https://www.readbyqxmd.com/read/29599592/comparison-of-tumor-necrosis-factor-%C3%AE-concentrations-in-gingival-crevicular-fluid-between-self-ligating-and-preadjusted-edgewise-appliances-in-the-early-leveling-stage-of-orthodontic-treatment
#16
Agita Pramustika, Nurtami Soedarsono, Krisnawati, Retno Widayati
Introduction: Tumor necrosis factor-α (TNF-α) is an important proinflammatory cytokine that regulates the early phase of inflammation reaction during orthodontic tooth movement. The aim of the present study was to compare TNF-α concentrations in the gingival crevicular fluid (GCF) between preadjusted edgewise appliance (PEA) and self-ligating (SL) systems during the early leveling stage of orthodontic treatment. Materials and Methods: Eighteen patients (aged 15-35 years) who participated in this study were divided into two experimental groups (PEA and SL) and control group (without orthodontic treatment)...
January 2018: Contemporary Clinical Dentistry
https://www.readbyqxmd.com/read/29599576/evaluation-of-bond-strength-and-load-deflection-rate-of-multi-stranded-fixed-retainer-wires-an-in-vitro-study
#17
Renu Sarah Samson, Eby Varghese, Eswara Uma, Pramod Redder Chandrappa
Background: Fixed orthodontic retainers must be well retained on the tooth surfaces, allow physiologic movement of teeth and exert minimal forces on the teeth to be retained. Previous studies analyzed the bond strength and amount of deflection caused due to the debonding force but not the magnitude of force needed for unit deformation. Aims: This study aims to evaluate and compare the bond strength and load deflection rate (LDR) of three different fixed retainer wires...
January 2018: Contemporary Clinical Dentistry
https://www.readbyqxmd.com/read/29588823/histological-evaluation-of-orthodontic-tooth-movement-following-low-level-laser-irradiation-in-rabbits
#18
Mostafa Abtahi, Nasrollah Saghravanian, Maryam Poosti, Hooman Shafaee
Background: Reduction of orthodontic treatment time is a major concern for orthodontists. Low level laser therapy (LLL) has been widely used in dentistry and it has been claimed that it could stimulate bone formation. Objective: The aim of the present study was to evaluate histological effects of LLL on alveolar bone remodeling during experimental tooth movement in rabbits. Methods: In this experimental study which was performed in the animal lab of Mashhad Dental School in 2016 twenty pre-pubertal female albino rabbits with the mean age of 8±1 weeks were randomly assigned into two groups...
January 2018: Electronic Physician
https://www.readbyqxmd.com/read/29588616/optimal-management-of-orthodontic-pain
#19
REVIEW
Francielle Topolski, Alexandre Moro, Gisele Maria Correr, Sasha Cristina Schimim
Pain is an undesirable side effect of orthodontic tooth movement, which causes many patients to give up orthodontic treatment or avoid it altogether. The aim of this study was to investigate, through an analysis of the scientific literature, the best method for managing orthodontic pain. The methodological aspects involved careful definition of keywords and diligent search in databases of scientific articles published in the English language, without any restriction of publication date. We recovered 1281 articles...
2018: Journal of Pain Research
https://www.readbyqxmd.com/read/29576575/cone-beam-computed-tomographic-evaluation-of-changes-in-maxillary-alveolar-bone-after-orthodontic-treatment
#20
Wakako Miyama, Yasuki Uchida, Mitsuru Motoyoshi, Keiko Motozawa, Moeko Kato, Noriyoshi Shimizu
This study examined the relationship of vertical and horizontal changes in the alveolar bone crest with upper incisor movement after orthodontic treatment. Tooth movement was measured on lateral cephalograms. Vertical and horizontal changes in the median alveolar crest and distance from the cementoenamel junction and anterior nasal spine to the alveolar crest were measured with cone-beam computed tomography. The incisal edge moved distally, and the cervical point intruded significantly and moved distally. The median alveolar crest decreased by 3...
2018: Journal of Oral Science
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