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https://www.readbyqxmd.com/read/27909758/release-of-fluoride-from-orthodontic-adhesives-and-penetration-into-enamel
#1
Panita Suebsureekul, Smorntree Viteporn
OBJECTIVE: The purpose of this work was to compare fluoride release from three orthodontic adhesives and fluoride penetration into the enamel surface. MATERIALS AND METHODS: A total of 156 extracted human premolar teeth were randomly assigned to three experimental groups and one control group (without bonding) with 39 teeth per group. Brackets were bonded to teeth using Fuji Ortho LC(®), Illuminate(®), or Light Bond(®). The amount of fluoride released (ppm) into artificial saliva was measured by a fluoride ion-selective electrode connected to an ion analyzer on days 1, 3, 7, and 30...
December 1, 2016: Journal of Orofacial Orthopedics, Fortschritte der Kieferorthopädie
https://www.readbyqxmd.com/read/27908527/-historical-review-on-obstructive-sleep-apnea-in-children
#2
Y H Chien, C Guilleminault
An historical review on the discoveries on pediatric obstructive sleep apnea syndrome and sleep-disordered breathing is outlined. Starting with the description by Dickens of "Joe" the obese, snoring and sleepy individual, the authors trace more than 50 years of questions and research starting with the lean adult to the child and from the recognition of obstructive sleep apnea syndrome to the outline of upper-airway resistance syndrome. The pathophysiological knowledge on sleep-disordered breathing has evolved over time, as have treatment approaches in children, from tracheostomy to positive-airway-pressure therapy, to adenotonsillectomy with and without orthodontic treatments to oral-facial myofunctional therapy...
November 28, 2016: Archives de Pédiatrie: Organe Officiel de la Sociéte Française de Pédiatrie
https://www.readbyqxmd.com/read/27907894/interventions-for-orthodontically-induced-white-spot-lesions-a-systematic-review-and-meta-analysis
#3
REVIEW
Damian Höchli, Monika Hersberger-Zurfluh, Spyridon N Papageorgiou, Theodore Eliades
BACKGROUND: Although orthodontic white spot lesions (WSLs) are one of the most often and most evident adverse effects of comprehensive fixed appliance treatment, the efficacy of interventions for WSLs has not yet been adequately assessed in an evidence-based manner. OBJECTIVE: Aim of this systematic review was to assess the therapeutic and adverse effects of interventions to treat post-orthodontic WSLs from randomized trials in human patients. SEARCH METHODS: An unrestricted electronic search of eight databases from inception to May 2016...
October 17, 2016: European Journal of Orthodontics
https://www.readbyqxmd.com/read/27905816/cementocyte-cell-death-occurs-in-rat-cellular-cementum-during-orthodontic-tooth-movement
#4
Humihiro Matsuzawa, Naoko Toriya, Yuya Nakao, Moe Konno-Nagasaka, Toshiya Arakawa, Miki Okayama, Itaru Mizoguchi
OBJECTIVE: To clarify the mechanism of root resorption during orthodontic treatment, we examined cementocyte cell death and root resorption in the cellular cementum on the pressure side during experimental tooth movement. MATERIALS AND METHODS: Using 8-week-old male Wistar rats, the right first molar was pushed mesiobuccally with a force of 40 g by a Ni-Ti alloy wire while the contralateral first molar was used as a control. Localization and number of cleaved caspase-3-positive and single-stranded DNA (ssDNA) - positive cells were evaluated using dual-label immunohistochemistry with anticleaved caspase-3 and anti-ssDNA antibodies...
December 1, 2016: Angle Orthodontist
https://www.readbyqxmd.com/read/27903250/effectiveness-of-bovine-derived-xenograft-versus-bioactive-glass-with-periodontally-accelerated-osteogenic-orthodontics-in-adults-a-randomized-controlled-clinical-trial
#5
Maha A Bahammam
BACKGROUND: Periodontally accelerated osteogenic orthodontics (PAOO) combines periodontal therapy with orthodontic therapy, which minimises treatment time. This study compared the effectiveness of a bovine-derived xenograft with that of bioactive glass when combined with PAOO for the treatment of adult patients with moderate crowding of the teeth. METHODS: In this prospective, single-masked clinical trial, 33 orthodontic patients (20 women, 13 men; mean age 21.2 ± 1...
November 30, 2016: BMC Oral Health
https://www.readbyqxmd.com/read/27901237/iatrogenics-in-orthodontics-and-its-challenges
#6
Gustavo Mattos Barreto, Henrique Oliveira Feitosa
Introduction: Orthodontics has gone through remarkable advances for those who practice it with dignity and clinical quality, such as the unprecedented number of patients treated of some type of iatrogenic problems (post-treatment root resorptions; occlusal plane changes; midline discrepancies, asymmetries, etc). Several questions may raise useful reflections about the constant increase of iatrogenics. What is causing it? Does it occur when dentists are properly trained? In legal terms, how can dentists accept these patients? How should they be orthodontically treated? What are the most common problems? Objective: This study analyzed and discussed relevant aspects to understand patients with iatrogenic problems and describe a simple and efficient approach to treat complex cases associated with orthodontic iatrogenics...
September 2016: Dental Press Journal of Orthodontics
https://www.readbyqxmd.com/read/27901236/class-iii-malocclusion-with-maxillary-deficiency-mandibular-prognathism-and-facial-asymmetry
#7
Guilherme de Araújo Almeida
This article reports the clinical case of a female patient with history of unsuccessful orthodontic treatment. She presented with Class III malocclusion, mandibular and maxillary constriction, anterior crossbite and facial asymmetry resulting from laterognathism triggered by hyperactivity of the condyle revealed by vertical elongation of the right mandibular ramus. Patient's treatment consisted of orthodontic mechanics and two orthognathic surgical interventions with satisfactory and stable outcomes. This case was presented to the Brazilian Board of Orthodontics and Dentofacial Orthopedics (BBO), as part of the requirements for obtaining the BBO Diplomate title...
September 2016: Dental Press Journal of Orthodontics
https://www.readbyqxmd.com/read/27901235/use-of-miniplates-as-a-method-for-orthodontic-anchorage-a-case-report
#8
Fernando Gianzanti Peres, Luis Eduardo Marques Padovan, Leandro Eduardo Kluppel, Gustavo Calvalcanti Albuquerque, Paulo Cesar Ulson de Souza, Marcela Claudino
Introduction: Temporary anchorage devices (TADs) have been developed to be used as direct adjuncts in orthodontic treatment and have facilitated treatment of more complex orthodontic cases, including patients with dental impaction. Objectives: This clinical case reports the applicability of TADs in the orthodontic treatment of a patient with impacted mandibular second molars. Surgical and orthodontic procedures related to the use of miniplates were also discussed in this study...
September 2016: Dental Press Journal of Orthodontics
https://www.readbyqxmd.com/read/27901234/air-powder-polishing-on-self-ligating-brackets-after-clinical-use-effects-on-debris-levels
#9
Mônica L S Castro Aragón, Leandro Santiago Lima, David Normando
Introduction: Debris buildup on brackets and arch surfaces is one of the main factors that can influence the intensity of friction between bracket and orthodontic wire. Objective: This study sought to evaluate the effect of air-powder polishing cleaning on debris levels of self-ligating ceramic brackets at the end of orthodontic treatment, compared to the behavior of conventional brackets. Methods: Debris levels were evaluated in metal conventional orthodontic brackets (n = 42) and ceramic self-ligating brackets (n = 42) on canines and premolars, arranged in pairs...
September 2016: Dental Press Journal of Orthodontics
https://www.readbyqxmd.com/read/27901232/reliability-of-overbite-depth-indicator-odi-and-anteroposterior-dysplasia-indicator-apdi-in-the-assessment-of-different-vertical-and-sagittal-dental-malocclusions-a-receiver-operating-characteristic-roc-analysis
#10
Farheen Fatima, Mubassar Fida, Attiya Shaikh
Introduction: Differential diagnosis of skeletal and dental relationships is crucial for planning orthodontic treatment. Overbite depth indicator (ODI) and anteroposterior dysplasia indicator (APDI) had been introduced in the past for assessment of vertical and sagittal jaw relationships, respectively. Objective: The objectives of this study were to evaluate the reliability of ODI and APDI in overbite and Angle malocclusions, as well as assess their diagnostic reliability among males and females of different age groups...
September 2016: Dental Press Journal of Orthodontics
https://www.readbyqxmd.com/read/27901230/esthetic-perception-of-orthodontic-appliances-by-brazilian-children-and-adolescents
#11
Deise Caldas Kuhlman, Tatiana Araújo de Lima, Candice Belchior Duplat, Jonas Capelli
Objective: The objective of this present study was to understand how children and adolescents perceive esthetic attractiveness of a variety of orthodontic appliances. It also analyzed preferences according to patients' age, sex and socioeconomic status. Methods: A photograph album consisting of eight photographs of different orthodontic appliances and clear tray aligners placed in a consenting adult with pleasing smile was used. A sample of children or adolescents aged between 8 and 17 years old (n = 276) was asked to rate each image for its attractiveness on a visual analog scale...
September 2016: Dental Press Journal of Orthodontics
https://www.readbyqxmd.com/read/27901229/color-changes-of-esthetic-orthodontic-ligatures-evaluated-by-orthodontists-and-patients-a-clinical-study
#12
Edilene Kawabata, Vera Lucia Dantas, Carlos Brito Kato, David Normando
Objective: To evaluate in vivo changes in the color of esthetic elastomeric ligatures from different manufacturers. Methods: Four widely used commercial brands of elastomeric ligatures were selected and used in 20 adult patients in a split-mouth design. The ligatures were evaluated by orthodontists and patients in a double-blind manner on the day the ligatures were placed (T0) and 30 days after intraoral exposure (T1) by means of a system of staining scores. Groups were compared by Friedman test with p < 0...
September 2016: Dental Press Journal of Orthodontics
https://www.readbyqxmd.com/read/27901227/evaluation-of-cytotoxicity-and-corrosion-resistance-of-orthodontic-mini-implants
#13
Celha Borges Costa Alves, Márcio Nunes Segurado, Miriam Cristina Leandro Dorta, Fátima Ribeiro Dias, Maurício Guilherme Lenza, Marcos Augusto Lenza
Objective: To evaluate and compare in vitro cytotoxicity and corrosion resistance of mini-implants from three different commercial brands used for orthodontic anchorage. Methods: Six mini-implants (Conexão(tm), Neodent(tm) and SIN(tm)) were separately immersed in artificial saliva (pH 6.76) for 30 and 60 days. The cytotoxicity of the corrosion extracts was assessed in L929 cell cultures using the violet crystal and MTT assays, as well as cell morphology under light microscopy...
September 2016: Dental Press Journal of Orthodontics
https://www.readbyqxmd.com/read/27901225/external-cervical-resorption-diagnostic-and-treatment-tips
#14
Alberto Consolaro
External cervical resorption is caused, almost exclusively, by dental trauma - especially those characterized by concussion - and is a dental disease to be diagnosed and treated accurately by endodontists. However, the vast majority of the cases is initially diagnosed by an orthodontist, due to the imaging possibilities in standardized documentations. Among the causes of external cervical resorption, it is common to mistakenly attribute it to orthodontic treatment, traumatic occlusion or even to chronic inflammatory periodontal disease...
September 2016: Dental Press Journal of Orthodontics
https://www.readbyqxmd.com/read/27901199/effects-of-chlorhexidine-varnish-on-caries-during-orthodontic-treatment-a-systematic-review-and-meta-analysis
#15
Elaine Machado Pingueiro Okada, Larissa Nogueira Soares Ribeiro, Maria Bernadete Sasso Stuani, Maria Cristina Borsatto, Tatiana Kelly da Silva Fidalgo, Francisco Wanderley Garcia de Paula-Silva, Erika Calvano Küchler
This study aimed to perform a systematic review and meta-analysis to evaluate the effectiveness of chlorhexidine varnish on the reduction of caries incidence during fixed orthodontic treatment. The literature searches involved The Cochrane Library, Medline, Scopus, OpenSigle databases and manual searches. The search on OpenSigle did not produce any additional articles. Clinical studies conducted in patients with orthodontic fixed appliances that used professional application of chlorhexidine varnish were included...
November 28, 2016: Brazilian Oral Research
https://www.readbyqxmd.com/read/27896417/age-assessment-based-on-third-molar-mineralisation-an-epidemiological-radiological-study-on-a-central-european-population
#16
Elisabeth Hofmann, Matthias Robold, Peter Proff, Christian Kirschneck
PURPOSE: The method published in 1973 by Demirjian et al. to assess age based on the mineralisation stage of permanent teeth is standard practice in forensic and orthodontic diagnostics. From age 14 onwards, however, this method is only applicable to third molars. No current epidemiological data on third molar mineralisation are available for Caucasian Central-Europeans. Thus, a method for assessing age in this population based on third molar mineralisation is presented, taking into account possible topographic and gender-specific differences...
November 28, 2016: Journal of Orofacial Orthopedics, Fortschritte der Kieferorthopädie
https://www.readbyqxmd.com/read/27896214/a-case-of-severe-mandibular-retrognathism-with-bilateral-condylar-deformities-treated-with-le-fort-i-osteotomy-and-two-advancement-genioplasty-procedures
#17
Masahiro Nakamura, Takeshi Yanagita, Tatsushi Matsumura, Takashi Yamashiro, Seiji Iida, Hiroshi Kamioka
We report a case involving a young female patient with severe mandibular retrognathism accompanied by mandibular condylar deformity that was effectively treated with Le Fort I osteotomy and two genioplasty procedures. At 9 years and 9 months of age, she was diagnosed with Angle Class III malocclusion, a skeletal Class II jaw relationship, an anterior crossbite, congenital absence of some teeth, and a left-sided cleft lip and palate. Although the anterior crossbite and narrow maxillary arch were corrected by interceptive orthodontic treatment, severe mandibular hypogrowth resulted in unexpectedly severe mandibular retrognathism after growth completion...
November 2016: Korean Journal of Orthodontics
https://www.readbyqxmd.com/read/27896213/bone-cutting-capacity-and-osseointegration-of-surface-treated-orthodontic-mini-implants
#18
Ho-Young Kim, Sang-Cheol Kim
OBJECTIVE: The objective of the study was to evaluate the practicality and the validity of different surface treatments of self-drilling orthodontic mini-implants (OMIs) by comparing bone cutting capacity and osseointegration. METHODS: Self-drilling OMIs were surface-treated in three ways: Acid etched (Etched), resorbable blasting media (RBM), partially resorbabla balsting media (Hybrid). We compared the bone cutting capacity by measuring insertion depths into artificial bone (polyurethane foam)...
November 2016: Korean Journal of Orthodontics
https://www.readbyqxmd.com/read/27895346/association-between-hypodontia-and-angles-malocclusion
#19
Batool Ali, Syed Sheeraz Hussain
This study was planned to determine the prevalence of hypodontia in permanent dentition and to test whether an association was present between hypodontia and Angle's malocclusion. The retrospective study was conducted at a tertiary care hospital, Karachi, and comprised record of all patients visiting the orthodontic clinics of the hospital from 2005 to 2015. Orthodontic records of 790(79%) subjects, including 189(23.9%) males and 601(76.1%) females, were reviewed. Their mean age was 17 ± 5.06 years. A tooth was considered missing if no evidence of tooth germ was observed on orthopantomograms and dental casts...
October 2016: JPMA. the Journal of the Pakistan Medical Association
https://www.readbyqxmd.com/read/27894549/quantitative-assessment-of-the-effectiveness-of-phase-1-orthodontic-treatment-using-the-american-board-of-orthodontics-discrepancy-index
#20
Nefeli Vasilakou, Eustaquio A Araujo, Ki Beom Kim, Donald R Oliver
INTRODUCTION: This retrospective study included a sample of 300 randomly selected patients from the archived records of Saint Louis University's graduate orthodontic clinic, St. Louis, Mo, from 1990 to 2012. The objective of this study was to quantify the changes obtained in phase 1 of orthodontic treatment and determine how much improvement, if any, has occurred before the initiation of the second phase. METHODS: For the purpose of this study, prephase 1 and prephase 2 records of 300 subjects were gathered...
December 2016: American Journal of Orthodontics and Dentofacial Orthopedics
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