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Angle Orthodontist

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https://www.readbyqxmd.com/read/30004786/three-dimensional-assessment-of-the-middle-cranial-fossa-and-central-skull-base-following-herbst-appliance-treatment
#1
Karine Sayure Okano, Lucia Helena Soares Cevidanes, Paula Loureiro Cheib, Antonio Carlos de Oliveira Ruellas, Marília Yatabe, Tung Nguyen, Lorenzo Franchi, James A McNamara, Bernardo Quiroga Souki
OBJECTIVES: The purpose of this three-dimensional (3D) study was to assess retrospectively the middle cranial fossa and central skull base of patients treated with the Herbst appliance (HA). MATERIALS AND METHODS: 3D surface virtual models of 40 Class II, division 1 malocclusion patients were generated from cone-beam computed tomography (CBCT) acquired before treatment (T0) and after 8 months of HA treatment (T1). T0 and T1 3D models were superimposed volumetrically at the anterior cranial fossa...
July 13, 2018: Angle Orthodontist
https://www.readbyqxmd.com/read/30004785/integrity-testing-of-a-smooth-surface-resin-sealant-around-orthodontic-brackets-using-a-new-fluorescence-aided-identification-technique-fit
#2
Christian Meller, Timm Schott
OBJECTIVE: To investigate the integrity of a fluorescing resin-based sealant placed around orthodontic brackets using the Fluorescence-aided Identification Technique (FIT). MATERIALS AND METHODS: Standard brackets were bonded to the buccal surfaces of 17 extracted sound permanent premolar crowns sealed with ProSeal®. Specimens were thermocycled (20,000 cycles, 5-55°C), and toothbrushing was simulated using an electric toothbrush and artificial aqueous toothpaste slurry...
July 13, 2018: Angle Orthodontist
https://www.readbyqxmd.com/read/29911910/cephalometric-characteristics-of-postorthodontic-female-patients-with-attractive-and-unattractive-frontal-posed-smiles
#3
Yuka Kawashima, Kyoko Kure, Kazuhito Arai
OBJECTIVES: To identify differences in skeletal, dental, and soft-tissue morphology between postorthodontic patients with attractive and unattractive frontal posed smiles. MATERIALS AND METHODS: The attractiveness of close-up photographs of frontal posed smiles in 100 adult female patients after conventional orthodontic treatment was evaluated by 20 dental students (10 men, 10 women) using a visual analogue scale. Posttreatment cephalograms of the 20 patients with the most attractive smiles (attractive group; mean age 23...
June 18, 2018: Angle Orthodontist
https://www.readbyqxmd.com/read/29911909/dentoalveolar-effects-produced-by-different-appliances-on-early-treatment-of-anterior-open-bite-a-randomized-clinical-trial
#4
Paulo Henrique Rossato, Thais Maria Freire Fernandes, Flávia Diane Assis Urnau, Ana Cláudia de Castro, Ferreira Conti, Renato Rodrigues de Almeida, Paula Vanessa Pedron Oltramari-Navarro
OBJECTIVES: To compare different appliances for early anterior open bite (AOB) correction. MATERIALS AND METHODS: This was a parallel, randomized clinical trial. A prospective sample of patients with AOB was recruited consecutively. Eligibility criteria included angle class I malocclusion with AOB equal to or greater than 1 mm. Participants were allocated by simple randomization to 4 groups: bonded spurs, chin cup, fixed palatal crib, and removable palatal crib...
June 18, 2018: Angle Orthodontist
https://www.readbyqxmd.com/read/29911908/effect-of-fixed-orthodontic-appliances-on-nonmicrobial-salivary-parameters
#5
Ioannis P Zogakis, Erez Koren, Shlomit Gorelik, Isaac Ginsburg, Miriam Shalish
OBJECTIVES: To examine possible changes in the levels of salivary antioxidants, C-reactive protein (CRP), cortisol, pH, proteins, and blood in patients treated with fixed orthodontic appliances. MATERIALS AND METHODS: Salivary samples from 21 orthodontic patients who met specific inclusion criteria were collected before the beginning of orthodontic treatment (T0; baseline), 1 hour after bonding (T1), and 4-6 weeks after bonding (T2). Oxidant-scavenging ability (OSA) was quantified using a luminol-dependent chemiluminescence assay...
June 18, 2018: Angle Orthodontist
https://www.readbyqxmd.com/read/29911907/scanning-electron-microscopy-evaluation-of-aligner-fit-on-teeth
#6
Edoardo Mantovani, Enrico Castroflorio, Gabriele Rossini, Francesco Garino, Giovanni Cugliari, Andrea Deregibus, Tommaso Castroflorio
OBJECTIVES: The fitting of aligners on anchorage teeth is a crucial factor in clear aligner orthodontics. The purpose of this experimental study was to evaluate the fitting of two aligner systems, Invisalign and CA-Clear Aligner, using scanning electron microscopy (SEM). MATERIALS AND METHODS: Passive aligners (Invisalign and CA-Clear Aligner) were adapted on resin casts obtained by stereolithography (STL) files of a patient, and then sectioned buccolingually. Upper and lower central incisors, upper and lower first premolars, and upper and lower first molars were the regions analyzed...
June 18, 2018: Angle Orthodontist
https://www.readbyqxmd.com/read/29911906/treatment-of-class-iii-malocclusion-using-miniscrew-anchored-inverted-forsus-frd-controlled-clinical-trial
#7
Osama Eissa, Mahmoud ElShennawy, Safaa Gaballah, Ghada ElMehy, Tarek El-Bialy
OBJECTIVES: To evaluate the skeletal, dental, and soft tissue changes after the use of miniscrew-anchored inverted Forsus fatigue-resistant device (FRD) in treatment of Class III malocclusion. MATERIALS AND METHODS: In this controlled clinical trial, 16 patients (9 girls and 7 boys; age 12.45 ± 0.87 years) were consecutively treated with miniscrew-anchored inverted Forsus FRD. This group was compared with a matched control group of 16 untreated patients (8 girls and 8 boys; age 11...
June 18, 2018: Angle Orthodontist
https://www.readbyqxmd.com/read/29911905/volumetric-evaluation-of-root-resorption-on-the-upper-incisors-using-cone-beam-computed-tomography-after-1-year-of-orthodontic-treatment-in-adult-patients-with-marginal-bone-loss
#8
Pornputthi Puttaravuttiporn, Mutita Wongsuwanlert, Chairat Charoemratrote, Chidchanok Leethanakul
OBJECTIVES: To determine upper incisor root resorption, volume loss, and the relationship between root volume loss and tooth movement after 1 year of orthodontic treatment in patients with marginal bone loss. MATERIALS AND METHODS: A total of 30 women (46.3 ± 5.4 years old) with moderate upper incisor bone loss who required intrusion during orthodontic treatment were recruited. Pre- and post-treatment cone beam computed tomography images were reconstructed. Upper incisors at pre- and post-treatment were superimposed; labio- and palato-apical, middle, and coronal third root volumes were assessed...
June 18, 2018: Angle Orthodontist
https://www.readbyqxmd.com/read/29911904/evaluation-of-maxillary-buccal-alveolar-bone-before-and-after-orthodontic-alignment-without-extractions-a-cone-beam-computed-tomographic-study
#9
Juliana F Morais, Birte Melsen, Karina M S de Freitas, Nuria Castello Branco, Daniela G Garib, Paolo M Cattaneo
OBJECTIVES: To assess the changes in the maxillary buccal alveolar bone during alignment without extractions. Secondarily, to evaluate the changes in arch dimensions and buccolingual inclinations of teeth and to identify risk factors for bone loss. MATERIALS AND METHODS: Twenty-two adolescents with crowded permanent dentitions were treated without extractions with Damon 3MX brackets. Cone beam computed tomographic scans were taken before treatment (T0) and after alignment (T1)...
June 18, 2018: Angle Orthodontist
https://www.readbyqxmd.com/read/29809053/three-dimensional-evaluation-of-changes-in-upper-airway-volume-in-growing-skeletal-class-ii-patients-following-mandibular-advancement-treatment-with-functional-orthopedic-appliances
#10
Stig Isidor, Gabriele Di Carlo, Marie A Cornelis, Flemming Isidor, Paolo M Cattaneo
OBJECTIVES: The aim of this study was to assess three-dimensionally the upper airway changes following functional appliance treatment in growing Class II patients. MATERIALS AND METHODS: Pre-and post-treatment Cone beam computed tomography scans of 20 patients (age range: 9 to 12; mean: 11.4 ± 1.0 years) were retrieved from the list of patients previously treated with functional appliances in the Postgraduate Clinic at the Section of Orthodontics, Aarhus University, Denmark...
May 29, 2018: Angle Orthodontist
https://www.readbyqxmd.com/read/29799273/three-dimensional-treatment-planning-for-maxillary-and-mandibular-segmental-surgery-for-an-adult-class-iii-where-old-meets-new
#11
R Scott Conley, Sean P Edwards
Class III open bite malocclusion can be among the most difficult case types to obtain an excellent occlusal, skeletal, and facial outcome. Treatment options include growth modification, extraction for orthodontic camouflage, and orthognathic surgery. For the most severely affected and non-growing patients, orthognathic surgery is often the most predictable and, in some situations, the only viable way of achieving an optimal result. The risks and benefits of surgical treatment options can occasionally be difficult to assess particularly for providers with limited experience...
May 25, 2018: Angle Orthodontist
https://www.readbyqxmd.com/read/29799272/in-vitro-evaluation-of-frictional-force-of-a-novel-elastic-bendable-orthodontic-wire
#12
Megumi Takada, Akira Nakajima, Shingo Kuroda, Shinya Horiuchi, Noriyoshi Shimizu, Eiji Tanaka
OBJECTIVES: To determine the frictional force (FF) of the novel, elastic, bendable titanium-niobium (Ti-Nb) alloy orthodontic wire in stainless steel (SS) brackets and to compare it with those of titanium-nickel (Ti-Ni) and titanium-molybdenum (Ti-Mo) alloy wires. MATERIALS AND METHODS: Three sizes of Ti-Nb, Ti-Ni, and Ti-Mo alloy wires were ligated with elastic modules to 0.018-inch and 0.022-inch SS brackets. The dynamic FFs between the orthodontic wires and SS brackets were measured at three bracket-wire angles (0°, 5°, and 10°) with an Instron 5567 loading apparatus (Canton, Mass)...
May 25, 2018: Angle Orthodontist
https://www.readbyqxmd.com/read/29799271/permanent-maxillary-central-incisor-and-first-molar-rotations-in-the-mixed-dentition-in-repaired-complete-unilateral-cleft-lip-and-palate-and-their-relationship-with-absence-of-teeth-in-their-vicinity
#13
Sunjay Suri, Suteeta Disthaporn, Bruce Ross, Bryan Tompson, Diogenes Baena, David Fisher, Wendy Lou
OBJECTIVES: To describe qualitatively and quantitatively the directions and magnitudes of rotations of permanent maxillary central incisors and first molars in the mixed dentition in repaired complete unilateral cleft lip and palate (UCLP) and study their associations with absence of teeth in their vicinity. MATERIALS AND METHODS: Dental casts and orthodontic records taken prior to orthodontic preparation for alveolar bone grafting of 74 children with repaired UCLP (53 male, 21 female; aged 8...
May 25, 2018: Angle Orthodontist
https://www.readbyqxmd.com/read/29782202/extraversion-and-openness-to-experience-moderate-the-relationship-between-orthodontic-treatment-need-and-oral-health-related-quality-of-life-in-adolescents-a-cross-sectional-study
#14
Cihan Aydoğan
OBJECTIVE: To investigate the effects of personality traits to moderate the relationships between orthodontic treatment need and oral health-related quality of life (OHRQoL) in adolescents. MATERIALS AND METHODS: A cross-sectional study was performed that included 230 subjects (125 girls and 105 boys) aged 11-14 years. Orthodontic treatment need was measured using the Index of Complexity, Outcome and Need (ICON). The Child Perceptions Questionnaire, the Basic Personality Traits Inventory (BPTI), and the Revised Life Orientation Test were used to assess the OHRQoL, basic personality dimensions, and dispositional optimism respectively...
May 22, 2018: Angle Orthodontist
https://www.readbyqxmd.com/read/29782201/positional-and-dimensional-temporomandibular-joint-changes-after-correction-of-posterior-crossbite-in-growing-patients-a-systematic-review
#15
Mohamed T Ellabban, Ahmed I Abdul-Aziz, Mona M Salah Fayed, Mai H AboulFotouh, Ehab S Elkattan, Mushira M Dahaba
OBJECTIVE: To elucidate the positional and dimensional temporomandibular joint (TMJ) changes after correction of posterior crossbite in growing patients. MATERIALS AND METHODS: A systematic unrestricted search was done in six databases until June 27, 2017. A manual search in the reference lists of the included studies and gray literature was also performed. The eligibility criteria included randomized controlled trials and prospective nonrandomized controlled clinical trials and a sample of growing subjects with posterior crossbite that required maxillary expansion...
May 22, 2018: Angle Orthodontist
https://www.readbyqxmd.com/read/29782200/impact-of-pediatric-obstructive-sleep-apnea-on-the-development-of-class-ii-hyperdivergent-patients-receiving-orthodontic-treatment-a-pilot-study
#16
Tingting Zhao, Peter Ngan, Fang Hua, Jie Zheng, Shunquan Zhou, Man Zhang, Hui Xiong, Hong He
OBJECTIVES: To conduct a pilot study to determine if the presence of obstructive sleep apnea (OSA) influences the orthodontic treatment outcome of Class II hyperdivergent patients receiving comprehensive orthodontic treatment. MATERIALS AND METHODS: Patients between the ages of 12 and 14 who received orthodontic treatment at the Hospital of Stomatology, Wuhan University, China, were included in this study. Patients were divided into two groups: the OSA group and the control group, based on the outcome of pretreatment polysomnography findings and lateral cephalometric radiograph examination...
May 22, 2018: Angle Orthodontist
https://www.readbyqxmd.com/read/29761707/evaluation-of-the-load-system-produced-by-a-single-intrusion-bend-in-a-maxillary-lateral-incisor-bracket-with-different-alloys
#17
Ricardo Lima Shintcovsk, Roberto Soares da Silva, Larry White, Lidia Parsekian Martins, Renato Parsekian Martins
OBJECTIVES: To evaluate if a 0.5-mm vertical bend applied on an incisor bracket produces movements in other planes and if different wires influence these effects. MATERIALS AND METHODS: An acrylic model of a treated patient with brackets passively bonded was attached to an Orthodontic Force Tester, and a load cell was attached to the left lateral incisor. Thirty 0.019 × 0.025-inch archwires were divided into three groups according to their alloy: SS (stainless steel), B-Ti (beta-titanium), and MF (beta-titanium wire coated with nickel-titanium)...
May 15, 2018: Angle Orthodontist
https://www.readbyqxmd.com/read/29761706/genotoxic-and-cytotoxic-effects-of-haas-appliance-in-exfoliated-buccal-mucosa-cells-during-orthodontic-treatment
#18
Arthur S Cunha, Willian Orlando Castillo, Catarina Satie Takahashi, Erika Calvano Küchler, Raquel Assed Bezerra Segato, Léa Assed Bezerra da Silva, Fábio Lourenço Romano, Mírian Aiko Nakane Matsumoto, Paulo Nelson-Filho
OBJECTIVES: To evaluate the genotoxic and cytotoxic effects of Haas appliances through micronuclei test and cytogenetic damage analysis in buccal mucosa epithelial cells of patients undergoing orthodontic treatment. MATERIALS AND METHODS: Twenty-eight patients, 6-12 years of age and of both genders, who required a Haas appliance for the correction of a posterior crossbite were included. Epithelial cells from the mucosa were collected by gently scraping the inside of both the right and left cheeks...
May 15, 2018: Angle Orthodontist
https://www.readbyqxmd.com/read/29717632/ribbon-wise-customized-lingual-appliance-and-orthodontic-anchor-screw-for-the-treatment-of-skeletal-high-angle-maxillary-protrusion-without-bowing-effect
#19
Toru Inami, Goshi Ito, Ken Miyazawa, Masako Tabuchi, Shigemi Goto
This case report demonstrates the treatment of a skeletal Class II high-angle adult patient with bimaxillary protrusion, angle Class I occlusion, and crowded anterior teeth. A ribbon-wise arch wire and a customized lingual appliance with anterior vertical slots were used to achieve proper torque control of the maxillary anterior teeth. An orthodontic anchor screw and a palatal bar were used for vertical control to avoid increasing the Frankfort-mandibular plane angle (FMA) by maxillary molar extrusion. Through the combined use of the ribbon-wise customized lingual appliance, palatal bar, and orthodontic anchor screw, vertical control and an excellent treatment result were achieved without the vertical and horizontal bowing effects peculiar to conventional lingual treatment...
May 2, 2018: Angle Orthodontist
https://www.readbyqxmd.com/read/29714068/effects-of-different-force-magnitudes-on-corticotomy-assisted-orthodontic-tooth-movement-in-rats
#20
Kriangkrai Kraiwattanapong, Bancha Samruajbenjakun
OBJECTIVES: To investigate the effects of light and heavy forces with corticotomy on tooth movement rate, alveolar bone response, and root resorption in a rat model. MATERIALS AND METHODS: The right and left sides of 40 male Wistar rats were randomly assigned using the split-mouth design to two groups: light force with corticotomy (LF) and heavy force with corticotomy (HF). Tooth movement was performed on the maxillary first molars using a nickel-titanium closed-coil spring delivering either 10 g (light force) or 50 g (heavy force)...
May 1, 2018: Angle Orthodontist
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