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Orthodontics, brackets, lingual

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https://www.readbyqxmd.com/read/28904955/dental-hygiene-and-orthodontics-effect-of-ultrasonic-instrumentation-on-bonding-efficacy-of-different-lingual-orthodontic-brackets
#1
Andrea Scribante, Maria Francesca Sfondrini, Vittorio Collesano, Gaia Tovt, Luisa Bernardinelli, Paola Gandini
Dental hygienists are often faced with patients wearing lingual orthodontic therapy, as ultrasonic instrumentation (UI) is crucial for oral health. As the application of external forces can lead to premature bonding failure, the aim of this study was to evaluate the effect of UI on shear bond strength (SBS) and on adhesive remnant index (ARI) of different lingual orthodontic brackets. 200 bovine incisors were divided into 10 groups. Four different lingual (STB, Ormco; TTR, Rocky Mountain Orthodontics; Idea, Leone; 2D, Forestadent) and vestibular control (Victory, 3M) brackets were bonded...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28902247/debonding-forces-of-different-pads-in-a-lingual-bracket-system
#2
Valter O Arima, Mario Vedovello, Heloísa C Valdrighi, Adriana S Lucato, Milton Santamaria, Silvia A S Vedovello
Objective: To evaluate the shear bond strength of lingual orthodontic brackets with resin or metal pads, the location of bond failure and the adhesive remnant index (ARI). Methods: A total of 40 extracted upper premolars were randomly divided into two groups of 20 each: bonding with brackets having (1) pads with extended resin directly on the lingual surface of teeth, and (2) pads with metal custom base on the lingual surface of teeth. The debonding force was measured with an Instron universal testing machine...
July 2017: Dental Press Journal of Orthodontics
https://www.readbyqxmd.com/read/28737425/comparative-study-of-root-resorption-of-maxillary-incisors-in-patients-treated-with-lingual-and-buccal-orthodontics
#3
Carlos Eduardo Nassif, Andreia Cotrim-Ferreira, Ana Claudia Castro Ferreira Conti, Danilo Pinelli Valarelli, Mauricio de Almeida Cardoso, Renata Rodrigues de Almeida-Pedrin
OBJECTIVE: To compare the magnitude of external apical root resorption (EARR) of maxillary incisors in patients with mild to moderate anterior crowding, treated with lingual and conventional (labial) orthodontics. MATERIALS AND METHODS: The sample comprised 40 patients divided into two groups: lingual (20 patients) and conventional buccal brackets (20 patients). Patient ages ranged from 11 to 45 years, and the study included 12 men and 28 women. Apical root resorption was measured from periapical radiographs obtained at the beginning of treatment (T1) and at the end of the leveling phase (T2)...
July 24, 2017: Angle Orthodontist
https://www.readbyqxmd.com/read/28686194/orthodontic-metallic-lingual-brackets-the-dark-side-of-the-moon-of-bond-failures
#4
Maria Francesca Sfondrini, Paola Gandini, Andrea Gioiella, Feng Xiao Zhou, Andrea Scribante
Lingual orthodontics, among both young and adult patients, increased in popularity during last years. The purposes of the present investigation were to evaluate the shear bond strength (SBS) values and Adhesive Remnant Index (ARI) scores of different lingual brackets compared with a vestibular control bracket. One hundred bovine teeth were extracted and embedded in resin blocks. Four different lingual brackets (Idea, Leone; STB, Ormco; TTR, RMO; 2D, Forestadent) and a vestibular control bracket (Victory, 3M) were bonded to the bovine enamel surfaces and subsequently shear tested to failure utilizing a Universal Testing Machine...
July 7, 2017: Journal of Functional Biomaterials
https://www.readbyqxmd.com/read/28678968/evaluation-of-deflection-forces-of-orthodontic-wires-with-different-ligation-types
#5
José Fernando Castanha Henriques, Rodrigo Hitoshi Higa, Nayara Thiago Semenara, Guilherme Janson, Thais Maria Freire Fernandes, Renata Sathler
The aim of this study was to evaluate deflection forces of orthodontic wires of different alloys engaged into conventional brackets using several ligation types. Stainless steel, conventional superelastic nickel-titanium and thermally activated nickel-titanium archwires tied into conventional brackets by a ring-shaped elastomeric ligature (RSEL), a 8-shaped elastomeric ligature (8SEL) and a metal ligature (ML) were tested. A clinical simulation device was created especially for this study and forces were measured with an Instron Universal Testing Machine...
July 3, 2017: Brazilian Oral Research
https://www.readbyqxmd.com/read/28527188/optimum-pure-intrusion-of-a-mandibular-canine-with-the-segmented-arch-in-lingual-orthodontics
#6
Abhishek M Thote, Krishna Sharma, Rashmi V Uddanwadiker, Sunita Shrivastava
BACKGROUND: Approximately 50% patients with a deep bite possess anatomically extruded mandibular canines. OBJECTIVE: The objective of this study was to specify an optimum toe (Θ) of the vertical segment of a cantilever from the distal aspect to achieve pure intrusion of a mandibular canine with the segmented arch in lingual orthodontics (LiO). METHODS: The geometrical model of a mandibular canine was developed to compute the required values of Θ (positive values - toe-in, negative values - toe-out)...
2017: Bio-medical Materials and Engineering
https://www.readbyqxmd.com/read/28430887/measurement-of-forces-and-moments-around-the-maxillary-arch-for-treatment-of-a-simulated-lingual-incisor-and-high-canine-malocclusion-using-straight-and-mushroom-archwires-in-fixed-lingual-appliances
#7
Brandon Owen, Geoffry Gullion, Giseon Heo, Jason P Carey, Paul W Major, Dan L Romanyk
Introduction: An Orthodontic SIMulator (OSIM) was used to investigate the propagation of forces and moments around a simulated archform for a gingival displaced canine and lingual displaced lateral incisor using fixed lingual orthodontic appliances. Methods: In-Ovation L self-ligating lingual brackets were bonded to anatomically shaped teeth on the OSIM, and the teeth were positioned such that a G4 NiTi 0.016" large maxillary mushroom archwire could be ligated in passive position...
April 20, 2017: European Journal of Orthodontics
https://www.readbyqxmd.com/read/28339591/comparison-of-the-force-levels-among-labial-and-lingual-self-ligating-and-conventional-brackets-in-simulated-misaligned-teeth
#8
Ahmad Alobeid, Tarek El-Bialy, Said Khawatmi, Cornelius Dirk, Andreas Jäger, Christoph Bourauel
Background/objective: The aim of this study was to evaluate force levels exerted by levelling arch wires with labial and lingual conventional and self-ligating brackets. Materials/methods: The tested orthodontic brackets were of the 0.022-in slot size for labial and 0.018-in for lingual brackets and were as follows: 1. Labial brackets: (i) conventional bracket (GAC-Twin, Dentsply), (ii) passive self-ligating (SL) brackets (Damon-Q®, ORMCO; Ortho classic H4™, Orthoclassic; FLI®SL, Rocky Mountain Orthodontics) and (iii) active SL brackets (GAC In-Ovation®C, DENTSPLY and SPEED™, Strite)...
August 1, 2017: European Journal of Orthodontics
https://www.readbyqxmd.com/read/28257733/effects-of-orthodontic-appliances-on-the-diagnostic-quality-of-magnetic-resonance-images-of-the-head
#9
Dzmitry Zhylich, Pradeep Krishnan, Prakash Muthusami, Tammy Rayner, Manohar Shroff, Andrea Doria, Bryan Tompson, Wendy Lou, Sunjay Suri
INTRODUCTION: The influence of 4 commonly used fixed orthodontic appliances on artifact formation and diagnostic quality of magnetic resonance (MR) images of the head produced by a 3-T MR scanner was studied. METHODS: Stainless steel brackets, ceramic brackets, combination of ceramic brackets and steel molar tubes, and multistranded steel mandibular lingual retainers were embedded into custom-made trays for each of 10 adult subjects. Head MR scans of 9 regions were acquired for each subject wearing these trays...
March 2017: American Journal of Orthodontics and Dentofacial Orthopedics
https://www.readbyqxmd.com/read/28125144/evaluation-of-force-released-by-deflection-of-orthodontic-wires-in-conventional-and-self-ligating-brackets
#10
Rodrigo Hitoshi Higa, Nayara Thiago Semenara, José Fernando Castanha Henriques, Guilherme Janson, Renata Sathler, Thais Maria Freire Fernandes
Introduction: The aim of the study was to evaluate deflection forces of rectangular orthodontic wires in conventional (MorelliTM), active (In-Ovation RTM) and passive (Damon 3MXTM) self-ligating brackets. Material and Methods: Two brands of stainless steel and nickel-titanium (NiTi) wires (MorelliTM and GACTM), in addition to OrmcoTM copper-nickel-titanium wires were used. Specimens were assembled in a clinical simulation device especially designed for this study and tested in an Instron universal testing machine...
November 2016: Dental Press Journal of Orthodontics
https://www.readbyqxmd.com/read/28024773/comprehensive-treatment-approach-for-condylar-hyperplasia-and-mandibular-crowding-with-custom-lingual-braces-and-2-jaw-surgery
#11
Panagiotis G Kyteas, W Stuart McKenzie, Peter D Waite, Chung H Kau
We report on the successful treatment of a 32-year-old woman with condylar hyperplasia and severe mandibular crowding. In addition, her maxilla was canted to the right, her mandibular midline and chin point deviated to the left, and her maxillary canines were missing. The treatment plan included (1) aligning and leveling the teeth in both arches, (2) correcting overbite and overjet, (3) performing LeFort I osteotomy and bilateral split osteotomies, and (4) correcting the malocclusion postsurgically. The orthodontic treatment was performed with custom lingual braces and clear brackets, and virtual surgical planning techniques were used to plan the orthognathic surgery...
January 2017: American Journal of Orthodontics and Dentofacial Orthopedics
https://www.readbyqxmd.com/read/27999798/impact-of-orthodontic-brackets-on-the-intraoral-scan-data-accuracy
#12
Ji-Man Park, Shin-Ae Choi, Ji-Yun Myung, Youn-Sic Chun, Minji Kim
This study aims to compare the impact of buccal and lingual brackets on the accuracy of dental arch data acquired by 4 different digital intraoral scanners. Two pairs of dental casts, one with buccal brackets and the other with lingual brackets, were used. Digital measurements of the 3D images were compared to the actual measurements of the dental models, which were considered standard values. The horizontal measurements included intercanine widths and intermolar widths. The Mann-Whitney U test was performed for comparisons...
2016: BioMed Research International
https://www.readbyqxmd.com/read/27867069/statistical-study-on-bracket-debonding-rate-with-the-win-lingual-technique
#13
Laetitia Pau-Bruchet, Christelle Reynes, Robert Sabatier, Catherine Galletti
The aim of this study is to present the results of a statistical inquiry measuring the bracket debonding rate using the WIN lingual technique. This inquiry was performed in the Odontology Unit at the Rothschild Hospital in the framework of the Lingual Orthodontics University Diploma at Paris VII university. Results were gathered by 8 orthodontic practitioners during two years of training from all their patients treated with the WIN lingual technique. The sample study comprised 33 patients treated exclusively with the WIN lingual technique...
December 2016: International Orthodontics
https://www.readbyqxmd.com/read/27862630/morphological-investigation-of-various-orthodontic-lingual-bracket-slots-using-scanning-electron-microscopy-and-atomic-force-microscopy
#14
Samjin Choi, Jae-Hyung Kim, Nam-Joon Kim, Seung-Hoon Lee, Hyunsoo Kim, Kyung-A Kim, Ki-Ho Park, Young-Guk Park
Various labial and lingual orthodontic appliances with aesthetic materials have been developed due to an increased demand in aesthetic orthodontic treatment. However, there are few reports regarding the morphology of lingual orthodontic appliances. Therefore, this study evaluates the roughness of slot surfaces of various orthodontic lingual brackets using field emission scanning electron microscopy (FE-SEM) and atomic force microscopy (AFM). Three types of stainless steel lingual brackets (Stealth(®) , 7th Generation(®) , and Clippy L(®) ) and one gold lingual bracket (Incognito™) with a slot size of 0...
December 2016: Microscopy Research and Technique
https://www.readbyqxmd.com/read/27829773/rehabilitation-of-complicated-crown-root-fracture-by-invisible-approach
#15
V Leela Rani, S Rajalingam, R Hemalatha, J Jananee
Dental trauma is one of the most common and significant problems met in all dental offices almost every day. In particular, injury to the anterior teeth is more vulnerable as it may affect the psychosocial behavior, severe emotional complications can occur leading to disturbances in their mental attitude. Cosmetic (lingual) orthodontics is the recent development in the field of dentistry in the last few decades. Patients are more concerned about their appearance during the treatment and are affected by psychosocial issues because of labially placed brackets, thus leading to the evolution of lingual orthodontic appliances...
October 2016: Journal of Pharmacy & Bioallied Sciences
https://www.readbyqxmd.com/read/27692426/adult-skeletal-class-ii-high-angle-case-treated-with-a-fully-customized-lingual-bracket-appliance
#16
Toru Inami, Yuko Nakano, Ken Miyazawa, Masako Tabuchi, Shigemi Goto
To achieve optimum occlusal and facial results in a patient with high-angle maxillary protrusion, it is important to move Point A back with retraction of the anterior teeth and prevent clockwise rotation of the mandible through good vertical control. A woman, aged 42 years 5 months, with a protrusive profile sought lingual orthodontic treatment. She had a skeletal Class II high-angle pattern with maxillary protrusion and mandibular retrusion. The extraction of the 4 first premolars was indicated to correct the problems...
October 2016: American Journal of Orthodontics and Dentofacial Orthopedics
https://www.readbyqxmd.com/read/27686316/alveoler-process-fracture-in-mandibular-immature-permanent-incisors-region
#17
Tamer Tuzuner, Gorkem Yahyaoglu, Emre Tosun, Fatih Taskesen, Adem Kusgoz
The presented case evaluates the treatment of an alveolar fracture associated with mandibular immature lower permanent incisors. An 8-year-old girl was referred to our clinic 3 hours after the trauma. The clinical and radiographic examination of the alveoler bone showed a fracture, along with the mandibular fracture and significant segment mobility and dislocation of several immature mandibular permanent incisors. These were moving together to the lingual side because of the direct trauma associated with falling from the school wall...
October 2016: JPMA. the Journal of the Pakistan Medical Association
https://www.readbyqxmd.com/read/27426275/a-protocol-for-treatment-of-minor-orthodontic-relapse-during-retention
#18
Damien Brezulier, Yann-Loïg Turpin, Olivier Sorel
OBJECTIVES: Successful orthodontic treatment presupposes that the esthetic and functional outcomes are maintained. Bonded retainers on the incisors and canines provide this stability. Failure of one or two units exposes the teeth to a relapse. This article describes the use of a retainer wire and an elastic device to provide rapid, effective and esthetic correction of incipient crowding. CLINICAL ASPECTS: After removing the retainer, a fixed appliance comprising a replacement retainer and a clear elastic are positioned...
November 12, 2016: Journal of Esthetic and Restorative Dentistry
https://www.readbyqxmd.com/read/27259532/the-effect-of-buccal-lingual-slot-dimension-size-on-third-order-torque-response
#19
Dan L Romanyk, Kenji Au, Darren Isfeld, Giseon Heo, Michael P Major, Paul W Major
Introduction: The focus of the presented study was to investigate the effect of buccal-lingual (B-L) orthodontic bracket slot dimension on third-order torque mechanics. Materials and methods: Three types of orthodontic brackets and two archwire sizes were considered. Ortho Classic H4 (0.026″ B-L slot, passive), Ormco Damon Q (0.028″ B-L slot, passive), and In-Ovation R (0.028″ slot, active) brackets were tested using 0.017″ × 0.025″ and 0.019″ × 0...
April 1, 2017: European Journal of Orthodontics
https://www.readbyqxmd.com/read/27049606/elemental-microstructural-and-mechanical-characterization-of-high-gold-orthodontic-brackets-after-intraoral-aging
#20
Sepp Hersche, Iosif Sifakakis, Spiros Zinelis, Theodore Eliades
The purpose of the present study was to investigate the elemental composition, the microstructure, and the selected mechanical properties of high gold orthodontic brackets after intraoral aging. Thirty Incognito™ (3M Unitek, Bad Essen, Germany) lingual brackets were studied, 15 brackets as received (control group) and 15 brackets retrieved from different patients after orthodontic treatment. The surface of the wing area was examined by scanning electron microscopy (SEM). Backscattered electron imaging (BEI) was performed, and the elemental composition was determined by X-ray EDS analysis (EDX)...
February 1, 2017: Biomedizinische Technik. Biomedical Engineering
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