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Angle Orthodontist

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https://www.readbyqxmd.com/read/29140721/long-term-stability-of-soft-tissue-changes-in-anterior-open-bite-adults-treated-with-zygomatic-miniplate-anchored-maxillary-posterior-intrusion
#1
Eiman S Marzouk, Hassan E Kassem
OBJECTIVES: To evaluate soft tissue changes and their long-term stability in skeletal anterior open bite adults treated by maxillary posterior teeth intrusion using zygomatic miniplates and premolar extractions. MATERIALS AND METHODS: Lateral cephalograms of 26 patients were taken at pretreatment (T1), posttreatment (T2), 1 year posttreatment (T3), and 4 years posttreatment (T4). RESULTS: At the end of treatment, the soft tissue facial height and profile convexity were reduced...
November 15, 2017: Angle Orthodontist
https://www.readbyqxmd.com/read/29140720/relationship-between-voice-function-and-skeletal-effects-of-rapid-maxillary-expansion
#2
Fundagül Bilgiç, İbrahim Damlar, Özgür Sürmelioğlu, Özlem Akıncı Sözer, Ufuk Tatlı
OBJECTIVE: To evaluate the effects of rapid maxillary expansion (RME) on the vocal quality, maxillary central incisors, midpalatal suture, and nasal cavity in patients with maxillary crossbite. MATERIALS AND METHODS: Coronal CT scans of 30 subjects (14 boys, 16 girls; mean age, 12.01 ± 0.75) were taken before RME (T0), and at the end of the expansion phase (T1). Voice samples of all patients were recorded with a high-quality condenser microphone (RODE NT2-A) on a desktop computer at T0 and T1...
November 15, 2017: Angle Orthodontist
https://www.readbyqxmd.com/read/29140719/effects-of-different-etching-methods-and-bonding-procedures-on-shear-bond-strength-of-orthodontic-metal-brackets-applied-to-different-cad-cam-ceramic-materials
#3
S Kutalmış Buyuk, Ahmet Serkan Kucukekenci
OBJECTIVE: To investigate the shear bond strength (SBS) of orthodontic metal brackets applied to different types of ceramic surfaces treated with different etching procedures and bonding agents. MATERIALS AND METHODS: Monolithic CAD/CAM ceramic specimens (N = 120; n = 40 each group) of feldspathic ceramic Vita Mark II, resin nanoceramic Lava Ultimate, and hybrid ceramic Vita Enamic were fabricated (14 × 12 × 3 mm). Ceramic specimens were separated into four subgroups (n = 10) according to type of surface treatment and bonding onto the ceramic surface...
November 15, 2017: Angle Orthodontist
https://www.readbyqxmd.com/read/29131664/tissue-repair-after-selective-alveolar-corticotomy-in-orthodontic-patients-a-preliminary-study
#4
Raquel Bueno Medeiros, Fabio Ramoa Pires, Alpdogan Kantarci, Jonas Capelli
OBJECTIVES: To analyze histologic findings of bone remodeling at the time of surgery and 90 days later at corticotomized and noncorticotomized sites. MATERIALS AND METHODS: Eight adult patients with bilaterally inclined mandibular molars were included in this split-mouth study. Corticotomy was performed on the test side, and bone was harvested on both mandibular hemi-arches. Bone blocks were shipped to Forsyth Institute lab (Boston, Mass). After surgery, cantilevers were activated to upright inclined mandibular molars on both sides...
November 13, 2017: Angle Orthodontist
https://www.readbyqxmd.com/read/29131663/factors-associated-with-long-term-vertical-skeletal-changes-induced-by-facemask-therapy-in-patients-with-class-iii-malocclusion
#5
Hee-Jong Kwak, Hae-Jin Park, Yoon-Ji Kim, Dong-Yul Lee
OBJECTIVES: This study investigated the long-term vertical skeletal changes induced by facemask therapy in patients with Class III malocclusion and different vertical skeletal patterns. MATERIALS AND METHODS: A total of 54 patients (20 boys and 34 girls; mean age, 7.7 ± 2.0 years) with Class III malocclusion who were successfully treated with facemask therapy were included in this study. Vertical skeletal changes (overbite depth indicator, angle between the Sella-Nasion (SN) plane and Gonion-Gnathion (GoGn) line, angle between the Frankfort horizontal (FH) plane and mandibular plane, gonial angle, and angle between the SN plane and palatal plane) were measured on lateral cephalograms from before treatment (T0) to after facemask therapy (T1) and from T0 to after retention (T2)...
November 13, 2017: Angle Orthodontist
https://www.readbyqxmd.com/read/29106299/comparison-of-two-early-treatment-protocols-for-anterior-dental-crossbite-in-the-mixed-dentition-a-randomized-trial
#6
Cristina B Miamoto, Leandro S Marques, Lucas G Abreu, Saul M Paiva
OBJECTIVE: To evaluate and compare two treatment protocols to correct anterior dental crossbite in the mixed dentition. MATERIALS AND METHODS: Thirty children, 8-10 years of age, participated. Individuals were divided into two groups. Group 1 consisted of 15 children treated with an upper removable appliance with finger springs; group 2, 15 children treated by bonding resin-reinforced glass ionomer cement bite pads on the lower first molars. The 30 participants were evaluated before treatment (T1) and 12 months after treatment began (T2)...
November 6, 2017: Angle Orthodontist
https://www.readbyqxmd.com/read/29099236/effect-of-incisal-loading-during-orthodontic-treatment-in-adults-a-randomized-control-trial
#7
Pornputthi Puttaravuttiporn, Mutita Wongsuwanlert, Chairat Charoemratrote, Steven J Lindauer, Chidchanok Leethanakul
OBJECTIVE: To measure the changes in tooth mobility, alveolar bone, and receptor activator of nuclear factor kappa-B ligand (RANKL)/osteoprotegerin (OPG) in the gingival crevicular fluid (GCF) during orthodontic treatment to regain incisal function in the presence and absence of biting exercises. MATERIALS AND METHODS: Thirty-six females (42.3 ± 6.5 years old) with periodontally compromised upper incisors received orthodontic treatment to obtain ideal incisor relationships...
November 3, 2017: Angle Orthodontist
https://www.readbyqxmd.com/read/29087728/recovery-of-multiple-impacted-maxillary-teeth-in-a-hyperdivergent-class-i-patient-using-temporary-skeletal-anchorage-devices-and-augmented-corticotomy
#8
Kyung A Kim, Hyeon-Shik Hwang, Kyu-Rhim Chung, Seong-Hun Kim, Gerald Nelson
Treatment of multiple impacted teeth is challenging. Three-dimensional treatment planning can help in delivering a better outcome. This case report presents a patient with an incomplete dental transposition between the canine and lateral incisor of the maxillary right side associated with the impaction of a dilacerated right central incisor. Using a two-stage surgical exposure and augmented corticotomy, the patient's occlusion and smile esthetics were significantly improved, and Class I occlusal relationships with optimal overjet and overbite were achieved after 50 months of orthodontic treatment...
October 31, 2017: Angle Orthodontist
https://www.readbyqxmd.com/read/29083225/alveolar-bone-response-to-light-force-tipping-and-bodily-movement-in-maxillary-incisor-advancement-a-prospective-randomized-clinical-trial
#9
Priyakorn Chaimongkol, Udom Thongudomporn, Steven J Lindauer
OBJECTIVE: To compare alveolar bone thickness and height changes between untreated incisors (control), incisors advanced with light-force tipping, and incisors advanced with bodily movement mechanics. MATERIALS AND METHODS: Forty-three subjects (aged 9.49 ± 1.56 years) with anterior crossbite were allocated into an untreated group (control), tipping group, or bodily movement group. Lateral cephalograms were taken before advancement (T0) and after obtaining normal overjet (T1)...
October 30, 2017: Angle Orthodontist
https://www.readbyqxmd.com/read/29072859/correlation-between-periodontal-soft-tissue-and-hard-tissue-surrounding-incisors-in-skeletal-class-iii-patients
#10
Jeong-Ho Park, Ji-Yeon Hong, Hyo-Won Ahn, Su-Jung Kim
OBJECTIVES: To investigate the association between the periodontal soft tissue, alveolar bone and dental parameters surrounding the incisors at baseline in patients with skeletal Class III malocclusion. MATERIALS AND METHODS: The study sample comprised 154 teeth from 28 patients with skeletal Class III malocclusion (19 men and 9 women, 21.15 ± 4.02 years). Periodontal soft tissue examination and hard tissue measurements with cone-beam computed tomography (CBCT) were performed...
October 26, 2017: Angle Orthodontist
https://www.readbyqxmd.com/read/29053335/success-rates-of-a-skeletal-anchorage-system-in-orthodontics-a-retrospective-analysis
#11
Raymond Lam, Mithran S Goonewardene, Brent P Allan, Junji Sugawara
OBJECTIVES: To evaluate the premise that skeletal anchorage with SAS miniplates are highly successful and predictable for a range of complex orthodontic movements. MATERIALS AND METHODS: This retrospective cross-sectional analysis consisted of 421 bone plates placed by one clinician in 163 patients (95 female, 68 male, mean age 29.4 years ± 12.02). Simple descriptive statistics were performed for a wide range of malocclusions and desired movements to obtain success, complication, and failure rates...
October 20, 2017: Angle Orthodontist
https://www.readbyqxmd.com/read/29039965/scanning-electron-microscope-comparative-surface-evaluation-of-glazed-lithium-disilicate-ceramics-under-different-irradiation-settings-of-nd-yag-and-er-yag-lasers
#12
Josko Viskic, Drazen Jokic, Suzana Jakovljevic, Lana Bergman, Sladana Milardovic Ortolan, Senka Mestrovic, Ketij Mehulic
OBJECTIVE: To evaluate the surface of glazed lithium disilicate dental ceramics after irradiation under different irradiation settings of Nd:YAG and Er:YAG lasers using a scanning electron microscope (SEM). MATERIALS AND METHODS: Three glazed-press lithium disilicate ceramic discs were treated with HF, Er:YAG, and Nd:YAG, respectively. The laser-setting variables tested were laser mode, repetition rate (Hz), power (W), time of exposure (seconds), and laser energy (mJ)...
October 17, 2017: Angle Orthodontist
https://www.readbyqxmd.com/read/29016191/treatment-changes-of-hypo-and-hyperdivergent-class-ii-herbst-patients
#13
Kim Rogers, Phillip M Campbell, Larry Tadlock, Emet Schneiderman, Peter H Buschang
OBJECTIVES: To determine the relative effects of Herbst appliance therapy in hypo- and hyperdivergent patients. MATERIALS AND METHODS: The treated group included 45 growing Class II, division 1, patients treated with stainless steel crown Herbst appliances, followed by fixed edgewise appliances. The untreated control group consisted of 45 Class II, division 1, subjects, matched to the treated sample based on Angle classification, age, sex, and pretreatment mandibular plane angle (MPA)...
October 10, 2017: Angle Orthodontist
https://www.readbyqxmd.com/read/29016190/effect-of-flapless-osteoperforation-assisted-tooth-movement-on-atrophic-alveolar-ridge-histomorphometric-and-gene-enrichment-analysis
#14
Ji-Won Lee, Jung-Yul Cha, Ki-Ho Park, Yoon-Goo Kang, Su-Jung Kim
OBJECTIVE: To investigate the effect of flapless osteoperforation on the tissue response of the atrophic alveolar ridge affected by orthodontic tooth movement (OTM). MATERIALS AND METHODS: An atrophic alveolar ridge model was established in the mandibular quadrants of eight beagle dogs. As a split-mouth design, the quadrants were randomly divided into group C (OTM only) and group OP (OTM with flapless osteoperforation). The rate of OTM for 10 weeks was compared between groups, and micro-CT-based histomorphometric analysis and RNA-sequencing-based gene-enrichment analysis were performed targeting the atrophic ridge...
October 10, 2017: Angle Orthodontist
https://www.readbyqxmd.com/read/28985107/a-comparison-of-treatment-effects-of-total-arch-distalization-using-modified-c-palatal-plate-vs-buccal-miniscrews
#15
Sang Kyu Lee, Noha H Abbas, Mohamed Bayome, Un-Bong Baik, Yoon-Ah Kook, Mihee Hong, Jae Hyun Park
OBJECTIVE: The purpose of this study was to compare the treatment effects of palatally vs buccally placed temporary anchorage devices. MATERIALS AND METHODS: Of 40 Class II division 1 malocclusion patients, 22 were treated with modified C-palatal plate (MCPP) appliances (age 21.9 ± 6.6 years), and 18 (age 24.2 ± 6.8 years) were treated with buccally placed miniscrews between the maxillary first molar and second premolar. A total of 26 linear and angular measurements were analyzed on pre- and posttreatment lateral cephalograms...
October 6, 2017: Angle Orthodontist
https://www.readbyqxmd.com/read/28985106/a-comparative-study-of-the-effect-of-the-intrusion-arch-and-straight-wire-mechanics-on-incisor-root-resorption-a-randomized-controlled-trial
#16
Marcio Rodrigues de Almeida, Aline Siqueira Butzke Marçal, Thais Maria Freire Fernandes, Juliana Brito Vasconcelos, Renato Rodrigues de Almeida, Ravindra Nanda
OBJECTIVE: To analyze and compare external apical root resorption (EARR) of maxillary incisors treated by intrusion arch or continuous archwire mechanics. MATERIALS AND METHODS: This cone-beam computed tomography (CBCT) study analyzed 28 deep bite patients in the permanent dentition who were randomly divided into two groups: Group 1, 12 patients with initial mean age of 15.1 ± 1.6 years and mean overbite of 4.6 ± 1.2 mm treated with the Connecticut intrusion arch (CIA) in the upper arch (Ortho Organizers, Carlsbad, Calif) for a mean period of 5...
October 6, 2017: Angle Orthodontist
https://www.readbyqxmd.com/read/28985105/class-ii-malocclusion-treatment-effects-with-jones-jig-and-distal-jet-followed-by-fixed-appliances
#17
Lorena Vilanova, José Fernando Castanha Henriques, Guilherme Janson, Mayara Paim Patel, Rachelle Simões Reis, Aron Aliaga-Del Castillo
OBJECTIVES: To compare the skeletal, dentoalveolar, and soft tissue changes in Class II malocclusion patients treated with Jones Jig and Distal Jet distalizers followed by fixed appliances. MATERIALS AND METHODS: The experimental groups comprised 45 Class II malocclusion subjects divided into two groups. Group 1 consisted of 25 patients treated with the Jones Jig, and group 2 consisted of 20 patients treated with the Distal Jet. Group 3 comprised 19 untreated Class II subjects...
October 6, 2017: Angle Orthodontist
https://www.readbyqxmd.com/read/28949768/bone-availability-for-mandibular-molar-distalization-in-adults-with-mandibular-prognathism
#18
Young Tak Choi, Yoon-Ji Kim, Kyung-Sook Yang, Dong-Yul Lee
OBJECTIVES: To investigate the retromolar space available for molar distalization in patients with mandibular prognathism. MATERIALS AND METHODS: Using cone-beam computed tomography, the posterior mandibular dimensions in 110 consecutive patients with Class I or Class III malocclusion were measured (mean age, 27.0 ± 7.1 years). The shortest linear distances from the distal root of the right mandibular second molar to the inner border of the mandibular cortex were measured at the level of root furcation and 2, 4, and 6 mm apical to the furcation along the sagittal line and the posterior line of occlusion...
September 26, 2017: Angle Orthodontist
https://www.readbyqxmd.com/read/28949767/the-effect-of-bracket-slot-size-on-the-effectiveness-of-orthodontic-treatment-a-systematic-review
#19
Elma P Vieira, Bruna S D Watanabe, Luana F Pontes, José N F Mattos, Lucianne C Maia, David Normando
OBJECTIVES: To assess, by means of a systematic review, the scientific evidence of the influence of 0.018-inch or 0.022-inch bracket slots on treatment time, efficiency of space closure, efficiency of alignment, quality of orthodontic finishing, level of discomfort, and level of root resorption. MATERIALS AND METHODS: The PubMed, Bireme, Medline, Scopus, Web of Science, Open Grey, and Google Scholar databases were searched, with no date and language restrictions, for randomized clinical trials and controlled clinical trials, using controlled terms related to bracket slots...
September 26, 2017: Angle Orthodontist
https://www.readbyqxmd.com/read/28949763/characterizing-constraining-forces-in-the-alignment-phase-of-orthodontic-treatment
#20
Christopher G Gibson, Feng-Chang Lin, Ceib Phillips, Alex Edelman, Ching-Chang Ko
OBJECTIVES: To describe the frictional forces (FF) that constrain wire sliding in the initial alignment phase of treatment using a new term, the "constraining force" (CF), and to hypothesize that CF is dependent on two factors: the hyperelastic behavior of archwires and the specific type of tooth geometric malalignment present. MATERIALS AND METHODS: A laboratory device that simulates the four distinct malalignment types (in-out, rotation, tipping, and vertical step) was used to couple with an Instron testing apparatus...
September 25, 2017: Angle Orthodontist
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