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Journal of Orofacial Orthopedics, Fortschritte der Kieferorthopädie

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https://www.readbyqxmd.com/read/29134232/skeletally-anchored-mesialization-of-molars-using-digitized-casts-and-two-surface-matching-approaches-analysis-of-treatment-effects
#1
Kathrin Becker, Benedict Wilmes, Chantal Grandjean, Sivabalan Vasudavan, Dieter Drescher
PURPOSE: To (1) quantify the three-dimensional treatment effect of a Mesialslider appliance using superimposed digital models, (2) to evaluate anchorage loss (measured by incisor displacement), and (3) to assess agreement between two different matching approaches, i.e., control point (CP)-based and iterative closest point (ICP) matching. METHODS: In a retrospective study, the effects of a skeletally anchored uni- and bilateral mesialization appliance (Mesialslider) as well as simultaneous mesialization and distalization appliance (Mesio-Distalslider) were evaluated in 48 subjects (aged 11-53 years)...
November 13, 2017: Journal of Orofacial Orthopedics, Fortschritte der Kieferorthopädie
https://www.readbyqxmd.com/read/29116344/correlation-and-agreement-of-a-digital-and-conventional-method-to-measure-arch-parameters
#2
Nes Nawi, Alizae Marny Mohamed, Murshida Marizan Nor, Nor Atika Ashar
OBJECTIVE: The aim of the present study was to determine the overall reliability and validity of arch parameters measured digitally compared to conventional measurement. METHODS: A sample of 111 plaster study models of Down syndrome (DS) patients were digitized using a blue light three-dimensional (3D) scanner. Digital and manual measurements of defined parameters were performed using Geomagic analysis software (Geomagic Studio 2014 software, 3D Systems, Rock Hill, SC, USA) on digital models and with a digital calliper (Tuten, Germany) on plaster study models...
November 7, 2017: Journal of Orofacial Orthopedics, Fortschritte der Kieferorthopädie
https://www.readbyqxmd.com/read/29101414/transversal-changes-space-closure-and-efficiency-of-conventional-and-self-ligating-appliances-a-quantitative-systematic-review
#3
Xianrui Yang, Chaoran Xue, Yiruo He, Mengyuan Zhao, Mengqi Luo, Peiqi Wang, Ding Bai
OBJECTIVE: Self-ligating brackets (SLBs) were compared to conventional brackets (CBs) regarding their effectiveness on transversal changes and space closure, as well as the efficiency of alignment and treatment time. METHODS: All previously published randomized controlled clinical trials (RCTs) dealing with SLBs and CBs were searched via electronic databases, e.g., MEDLINE, Cochrane Central Register of Controlled Trials, EMBASE, World Health Organization International Clinical Trials Registry Platform, Chinese Biomedical Literature Database, and China National Knowledge Infrastructure...
November 3, 2017: Journal of Orofacial Orthopedics, Fortschritte der Kieferorthopädie
https://www.readbyqxmd.com/read/29119211/mitteilungen-der-dgkfo
#4
(no author information available yet)
No abstract text is available yet for this article.
November 2017: Journal of Orofacial Orthopedics, Fortschritte der Kieferorthopädie
https://www.readbyqxmd.com/read/29080079/obeservations-on-association-between-third-molar-agenesis-and-craniofacial-morphology
#5
Yi Huang, Yinqiu Yan, Jing Cao, Bingjie Xie, Xueling Xiao, Mengqi Luo, Ding Bai, Xianglong Han
OBJECTIVE: This study was designed to examine the relationship between third molar agenesis and skeletal morphology in the Chinese population. MATERIALS AND METHODS: A total of 1043 patients' records were analyzed with panoramic radiographs and cephalograms. Congenitally missing third molars were assessed with respect to gender, jaw, and side, and assessed in various types of facial morphology. Linear, angular, and proportional cephalometric measurements were analyzed and compared among the samples...
November 2017: Journal of Orofacial Orthopedics, Fortschritte der Kieferorthopädie
https://www.readbyqxmd.com/read/28929203/effects-of-toothpastes-on-white-spot-lesions-around-orthodontic-brackets-using-quantitative-light-induced-fluorescence-qlf-an-in-vitro-study
#6
Gokcenur Gokce, Selcuk Savas, Ebru Kucukyilmaz, Ilknur Veli
AIM: The aim of this study was to investigate the effects of toothpastes with different contents on the remineralization of white spot lesions around orthodontic brackets by quantitative light-induced fluorescence (QLF). MATERIALS AND METHODS: A total of 45 freshly extracted human mandibular first molars were selected. Artificial caries lesions were created on enamel surfaces using an acidified gel system for 7 days. Initial relative fluorescence loss was calculated as the pretreatment (baseline) fluorescence value by QLF device...
November 2017: Journal of Orofacial Orthopedics, Fortschritte der Kieferorthopädie
https://www.readbyqxmd.com/read/28913603/influence-of-anthropometry-tmd-and-sex-on-molar-bite-force-in-adolescents-with-and-without-orthodontic-needs
#7
Barbara de Lima Lucas, Taís de Souza Barbosa, Paula Midori Castelo, Maria Beatriz Duarte Gavião
PURPOSE: Bite force has been studied as representative of functional indices of mastication and its value may have diagnostic significance in disorders of the musculoskeletal system of facial bones. This study aimed to evaluate bite force in adolescents with and without orthodontic needs considering presence of temporomandibular disorders (TMD) as well as anthropometry: craniofacial dimensions and body mass index (BMI). METHODS: A total of 80 subjects were screened (61 females, 19 males; 18 ± 3 years old)...
November 2017: Journal of Orofacial Orthopedics, Fortschritte der Kieferorthopädie
https://www.readbyqxmd.com/read/28913542/metal-release-profiles-of-orthodontic-bands-brackets-and-wires-an-in-vitro-study
#8
B Wendl, H Wiltsche, E Lankmayr, H Winsauer, A Walter, A Muchitsch, N Jakse, M Wendl, T Wendl
AIM: The present study evaluated the temporal release of Co Cr, Mn, and Ni from the components of a typical orthodontic appliance during simulated orthodontic treatment. MATERIALS AND METHODS: Several commercially available types of bands, brackets, and wires were exposed to an artificial saliva solution for at least 44 days and the metals released were quantified in regular intervals using inductively coupled plasma quadrupole mass spectrometry (ICP-MS, Elan DRC+, Perkin Elmer, USA)...
November 2017: Journal of Orofacial Orthopedics, Fortschritte der Kieferorthopädie
https://www.readbyqxmd.com/read/28733810/precision-of-guided-scanning-procedures-for-full-arch-digital-impressions-in-vivo
#9
Moritz Zimmermann, Christina Koller, Moritz Rumetsch, Andreas Ender, Albert Mehl
PURPOSE: System-specific scanning strategies have been shown to influence the accuracy of full-arch digital impressions. Special guided scanning procedures have been implemented for specific intraoral scanning systems with special regard to the digital orthodontic workflow. The aim of this study was to evaluate the precision of guided scanning procedures compared to conventional impression techniques in vivo. METHOD: Two intraoral scanning systems with implemented full-arch guided scanning procedures (Cerec Omnicam Ortho; Ormco Lythos) were included along with one conventional impression technique with irreversible hydrocolloid material (alginate)...
November 2017: Journal of Orofacial Orthopedics, Fortschritte der Kieferorthopädie
https://www.readbyqxmd.com/read/28660422/effect-of-orthognathic-surgery-on-profile-esthetics-in-class-ii-1-malocclusions
#10
Katharina Klaus, Christian Heumann, Sabine Ruf
OBJECTIVES: To measure the effect of orthognathic surgery on Class II:1 profile silhouette esthetics and to identify pretreatment parameters and thresholds for consistent esthetic improvement. METHODS: Pre- and posttreatment black profile silhouettes of 20 patients with Class II:1 malocclusion who had received combined orthodontic/orthognathic treatment were evaluated retrospectively by 20 European orthodontists and laypeople each using a visual analogue scale (VAS)...
November 2017: Journal of Orofacial Orthopedics, Fortschritte der Kieferorthopädie
https://www.readbyqxmd.com/read/28660420/effects-of-combined-orthodontic-orthognathic-treatment-for-class-ii-and-iii-correction-on-posterior-airway-space-comparison-of-mono-and-bignathic-osteotomies
#11
Jan Hourfar, Gero Stefan Michael Kinzinger, Hartmut Feifel, Verena Maria Vehr, Jörg Alexander Lisson
OBJECTIVES: Comparison of treatment effects on the posterior airway space (PAS) in patients treated with combined orthodontic-orthognathic surgical treatment. METHODS: Pre- and postsurgical lateral cephalograms of 53 (34 females, 19 males) Caucasian patients were analyzed using a customized set of measurements. According to malocclusion (Class II or III) and surgical approach (either monognathic or bignathic), patients were allocated into four groups. PAS was assessed from cranial to caudal at six levels (P1-P6)...
November 2017: Journal of Orofacial Orthopedics, Fortschritte der Kieferorthopädie
https://www.readbyqxmd.com/read/28840230/mitteilungen-der-dgkfo
#12
(no author information available yet)
No abstract text is available yet for this article.
September 2017: Journal of Orofacial Orthopedics, Fortschritte der Kieferorthopädie
https://www.readbyqxmd.com/read/28702831/mitteilungen-der-dgkfo
#13
(no author information available yet)
No abstract text is available yet for this article.
July 2017: Journal of Orofacial Orthopedics, Fortschritte der Kieferorthopädie
https://www.readbyqxmd.com/read/28488080/comparison-of-two-treatment-strategies-for-the-early-treatment-of-an-anterior-skeletal-open-bite-posterior-bite-block-vertical-pull-chin-cup-pbb-vpc-vs-posterior-bite-block-high-pull-headgear-pbb-hph
#14
Hakan Turkkahraman, Ebru Cetin
PURPOSE: Aim of the present study was to compare the effects of posterior bite block-vertical pull chin cup (PBB-VPC) and posterior bite block-high pull headgear (PBB-HPH) in the early treatment of anterior open bite. METHODS: This retrospective study was carried out using pretreatment (T1) and posttreatment (T2) lateral cephalometric radiographs of 28 patients treated with either PBB-VPC or PBB-HPH and 14 age-matched control patients with anterior open bite. The treatment changes were evaluated with 20 measurements (7 angular and 13 linear)...
July 2017: Journal of Orofacial Orthopedics, Fortschritte der Kieferorthopädie
https://www.readbyqxmd.com/read/28455746/cephalometric-changes-in-growing-patients-with-increased-vertical-dimension-treated-with-cervical-headgear
#15
Sergio Sambataro, Rosamaria Fastuca, Nelson J Oppermann, Paola Lorusso, Tiziano Baccetti, Lorenzo Franchi, Alberto Caprioglio
PURPOSE: The aim of the present study was to investigate the cephalometric changes in patients with increased vertical dimension after treatment with cervical headgear compared to controls. METHODS: The sample of the present retrospective study consisted of 20 Class II patients (10 males, 10 females; mean age 8.54 ± 1.15 years) with increased vertical dimension treated with cervical headgear (treatment group) and 21 Class II patients (11 males, 10 females; mean age 8...
July 2017: Journal of Orofacial Orthopedics, Fortschritte der Kieferorthopädie
https://www.readbyqxmd.com/read/28409195/stability-of-anterior-tooth-alignment-10%C3%A2-years-out-of-retention
#16
Ragnar Bjering, Leiv Sandvik, Marit Midtbø, Vaska Vandevska-Radunovic
OBJECTIVE: Long-term posttreatment stability of anterior tooth alignment is of major interest to both patients and orthodontists. In the present study we examined the long-term outcome 10 years postretention and investigated the possible influence of treatment-related factors on posttreatment stability of maxillary and mandibular anterior tooth alignment. METHODS: The sample comprised 51 patients treated with full fixed appliances in a university clinic. Average retention time was 1...
July 2017: Journal of Orofacial Orthopedics, Fortschritte der Kieferorthopädie
https://www.readbyqxmd.com/read/28341880/long-term-skeletal-and-dental-effects-of-facemask-versus-chincup-treatment-in-class-iii-patients-a-retrospective-study
#17
B Wendl, M Stampfl, A P Muchitsch, H Droschl, H Winsauer, A Walter, M Wendl, T Wendl
OBJECTIVES: To investigate the skeletal and dental changes during chincup versus facemask treatment, to compare the long-term effects of the two appliances, and to document the impact of each on treatment success. METHODS: In all, 61 patients with Class III syndrome were retrospectively analyzed at three examination times: 7.8 ± 1.7 years of age (T0, pretreatment), 9.6 ± 2.4 years of age (T1, posttreatment), and around 15-20 years later (T2, long-term follow-up)...
July 2017: Journal of Orofacial Orthopedics, Fortschritte der Kieferorthopädie
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
#18
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...
July 2017: Journal of Orofacial Orthopedics, Fortschritte der Kieferorthopädie
https://www.readbyqxmd.com/read/28289759/thermal-imaging-of-the-pulp-during-residual-adhesive-removal
#19
Gökmen Kurt, Nisa Gül, Özgür Er, Gülşen Çakmak, Emre Bendeş, Veysel Aslantaş
OBJECTIVE: The aim of this study was to evaluate the temperature changes of the pulpal area during different adhesive clean-up procedures. MATERIALS AND METHODS: A total of 80 freshly extracted adult maxillary premolar teeth were divided into four groups. Adhesive clean-up was performed with 6- and 12-fluted tungsten carbide burs (TCB) using low- and high-speed handpieces with air or water cooling after bracket debonding. The temperature changes and cool down times were evaluated with a thermal camera...
July 2017: Journal of Orofacial Orthopedics, Fortschritte der Kieferorthopädie
https://www.readbyqxmd.com/read/28289758/changes-in-university-orthodontic-care-over-a-period-of-20%C3%A2-years-patient-characteristics-treatment-quality-and-treatment-costs
#20
Julia von Bremen, Eva Maria Streckbein, Sabine Ruf
AIM: The aim of the present study was to analyze whether there were changes in the severity of malocclusions of patients treated at the Department of Orthodontics, University of Giessen, Germany over a period of 20 years (1992-2012) and if the implementation of the KIG system (German index of treatment need) in 2001 had any effect on the patient cohort. Furthermore, the study aimed to analyze the influence of the severity of malocclusion on treatment quality and economic efficiency (relation payment per case/treatment effort)...
July 2017: Journal of Orofacial Orthopedics, Fortschritte der Kieferorthopädie
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