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Orthodontics & Craniofacial Research

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https://www.readbyqxmd.com/read/27862935/subjective-and-objective-evaluation-of-frontal-smile-esthetics-in-patients-with-facial-asymmetry-a-comparative-cross-sectional-study
#1
H Singh, R K Maurya, P Kapoor, P Sharma, D Srivastava
AIM AND OBJECTIVES: To analyze the relationship between subjective and objective evaluations of pre-treatment posed smiles in patients with facial asymmetry and to assess the influence of dentofacial structures involved in asymmetry on the perception of smile attractiveness. SAMPLE: Thirty-five patients (25 males and 10 females) between 18 and 25 years of age with facial asymmetry were selected. MATERIALS AND METHODS: Pre-treatment clinical photographs of posed smiles were subjectively evaluated by a panel of 20 orthodontists, 20 oral surgeons, and 20 laypersons...
November 14, 2016: Orthodontics & Craniofacial Research
https://www.readbyqxmd.com/read/27860241/second-premolar-agenesis-as-a-subclinical-phenotype-of-isolated-cleft-palate
#2
J P Schwartz, R C M C Lauris, G Dalbén, D G Garib
OBJECTIVE: To compare the prevalence of dental anomalies in patients with isolated cleft palate with or without hypodontia of the second premolar. SETTING AND SAMPLE POPULATION: A total of 653 patients with isolated cleft palate aged 8-12 years were divided into two groups: G1-subjects without hypodontia of second premolar (n = 546) and G2-subjects with hypodontia of at least one-second premolar (n = 107). The control group consisted of 107 non-cleft orthodontic patients...
November 14, 2016: Orthodontics & Craniofacial Research
https://www.readbyqxmd.com/read/27734630/erratum
#3
(no author information available yet)
No abstract text is available yet for this article.
November 2016: Orthodontics & Craniofacial Research
https://www.readbyqxmd.com/read/27717123/craniofacial-morphology-in-pediatric-patients-with-prader-willi-syndrome-a-retrospective-study
#4
M R Giuca, R Inglese, S Caruso, R Gatto, G Marzo, M Pasini
OBJECTIVE: To investigate craniofacial characteristics in pediatric patients with Prader-Willi syndrome (PWS). SETTING AND SAMPLE POPULATION: A retrospective sample of 20 consecutive patients with PWS who had lateral and antero-posterior (AP) cephalograms (14 males and six females; average age 10.2 ± 3 years) was compared to 20 controls matched for age and sex (14 males and six females; average age 10.5 ± 3.7 years). MATERIALS AND METHODS: Cephalometric skeletal measurements were performed twice at a 1-week interval by one calibrated operator, and random error was calculated using Dahlberg's formula...
November 2016: Orthodontics & Craniofacial Research
https://www.readbyqxmd.com/read/27659276/effect-of-5-benzocaine-gel-on-relieving-pain-caused-by-fixed-orthodontic-appliance-activation-a-double-blind-randomized-controlled-trial
#5
L Eslamian, H Gholami, S A R Mortazavi, S Soheilifar
AIM: To compare the effectiveness of 5% benzocaine gel and placebo gel on reducing pain caused by fixed orthodontic appliance activation. SETTING AND SAMPLE POPULATION: Thirty subjects (15-25 years) undergoing fixed orthodontics. METHODS AND MATERIALS: A randomized, double-blind, placebo-controlled and cross-over clinical trial study was conducted. Subjects were asked to apply a placebo gel and 5% benzocaine gel, exchangeable in two consecutive appointments, twice a day for 3 days and mark their level of pain on a VAS scale...
November 2016: Orthodontics & Craniofacial Research
https://www.readbyqxmd.com/read/27650161/perception-of-facial-profiles-influence-of-female-sex-hormones-and-personality-traits
#6
T Jovic, A Pavlic, S Varga, D Kovacevic Pavicic, M Slaj, S Spalj
OBJECTIVES: The observational study investigated whether women's perception of the facial profile is related to changes in sex hormones during the menstrual cycle and under the influence of personality traits. SETTING AND SAMPLE POPULATION: Participants were heterosexual Caucasian normally menstruating women not using oral contraceptives (N = 30, aged 20-44 years). MATERIAL AND METHODS: The profile attractiveness was assessed by grading of thirteen men's and women's Caucasian profile distortions by a visual analogue scale (0 = least to 100 = most attractive) in the non-ovulating phase and ovulating phase of the menstrual cycle...
November 2016: Orthodontics & Craniofacial Research
https://www.readbyqxmd.com/read/27647720/effects-of-different-orthodontic-retention-protocols-on-the-periodontal-health-of-mandibular-incisors
#7
W J Rody, S Elmaraghy, A M McNeight, C A Chamberlain, D Antal, C Dolce, T T Wheeler, S P McGorray, L M Shaddox
OBJECTIVES: To test the following two hypotheses: 1) different types of retainers result in distinct levels of biomarkers in gingival crevicular fluid (GCF) and 2) the retainer bonded to all mandibular anterior teeth induces more detrimental outcomes to the periodontium. SETTING AND SAMPLE POPULATION: The Department of Orthodontics at the University of Florida. The population consisted of individuals in the retention phase of orthodontic treatment. MATERIAL AND METHODS: This was a cross-sectional study that enrolled 36 individuals...
November 2016: Orthodontics & Craniofacial Research
https://www.readbyqxmd.com/read/27506322/relationship-between-the-cranial-base-and-the-mandible-in-artificially-deformed-skulls
#8
I Ferros, M J Mora, I F Obeso, P Jimenez, A Martinez-Insua
OBJECTIVES: There is controversy regarding the relationship between mandibular position and alterations of the cranial base that provoke a more anterior location of the glenoid fossa. Artificially deformed skulls display marked alterations of the cranial base. This study evaluates mandibular changes as function of the morphology of the cranial base in these skulls. MATERIAL AND METHODS: A geometric morphometric study was performed on lateral cephalometric X-rays of three groups of skulls: 32 with anteroposterior deformity, 17 with circumferential deformity and 39 with no apparent deformity...
November 2016: Orthodontics & Craniofacial Research
https://www.readbyqxmd.com/read/27145524/effect-of-a-thin-neck-pacifier-on-primary-dentition-a-randomized-controlled-trial
#9
Y Wagner, R Heinrich-Weltzien
OBJECTIVES: To evaluate changes in occlusal characteristics in the primary dentition that occur after introducing a thin-neck pacifier (TNP) to children with previously diagnosed pacifier-associated anterior open bite (AOB) and increased overjet. SETTING AND SAMPLE POPULATION: Department of Preventive and Pediatric Dentistry, Jena University Hospital, Germany. Subjects were 86 children (mean age 20.3 months) with a pacifier-associated open bite or overjet ≥2 mm...
August 2016: Orthodontics & Craniofacial Research
https://www.readbyqxmd.com/read/27132798/facial-biometry-of-amazon-indigenous-people-of-the-xingu-river-perspectives-on-genetic-and-environmental-contributions-to-variation-in-human-facial-morphology
#10
M Barbosa, E P Vieira, C C A Quintão, D Normando
OBJECTIVE: To evaluate facial morphology of non-mixed indigenous people living in the Xingu region. Studies on these populations report that the total genetic diversity is as high as that observed for other continental populations. On the other hand, eating habits are different between indigenous and urban population, as indigenous people still have traditional habits. SETTING AND SAMPLE POPULATION: The sample consisted of 106 indigenous subjects, in permanent dentition stage, belonging to four groups: Arara-Laranjal (n = 35), Arara-Iriri (n = 20), Xikrin-Kaiapó (n = 24), and Assurini (n = 27)...
August 2016: Orthodontics & Craniofacial Research
https://www.readbyqxmd.com/read/27132627/effect-of-hyaluronic-acid-on-bone-formation-in-the-expanded-interpremaxillary-suture-in-rats
#11
T B Sadikoglu, D Nalbantgil, F Ulkur, N Ulas
OBJECTIVE: To evaluate the histomorphometric effects of different molecular weight hyaluronic acid on bone formation in rats after expansion of the interpremaxillary suture. MATERIAL AND METHODS: Twenty-four male Sprague Dawley rats were divided into three groups. Each group was subjected to expansion for 5 days and retention for 10 days. Group 1 received 50 μl of high molecular weight hyaluronic acid (HMWHA), group 2 received 50 μl of low molecular weight hyaluronic acid (LMWHA), and the control group received same amount of saline solution to the interpremaxillary suture...
August 2016: Orthodontics & Craniofacial Research
https://www.readbyqxmd.com/read/27027638/biomechanical-potential-of-the-temporal-muscle-in-brachyfacial-and-dolichofacial-subjects-a-study-on-dry-mandibles
#12
H B Marques, F F Richter, L Heck, L L Xavier, D de Campos
OBJECTIVES: To measure the lengths of the force and resistance arms, in order to calculate the mechanical advantage and muscular work of the human temporalis muscle (TM) in brachyfacial (BR) and dolichofacial (DO) subjects. SETTING AND SAMPLE POPULATION: Mandibles from 49 subjects of both genders (BR n = 9; DO n = 40) from the collection of the Laboratory of Human Anatomy at Universidade de Santa Cruz do Sul, Rio Grande do Sul, Brazil, were analyzed. MATERIAL AND METHODS: The distance between the condylar process and the coronoid process (insertion site of the TM) represented the length of the force arm (LFA ) of the TM...
August 2016: Orthodontics & Craniofacial Research
https://www.readbyqxmd.com/read/26898820/primary-tooth-size-asymmetry-in-twins-and-singletons
#13
T Heikkinen, V Harila, A Ollikkala, L Alvesalo
OBJECTIVES: To explore asymmetry values of antimeric deciduous tooth crown dimensions in three types of twins: monozygotic (MZ), dizygotic same-sex (DZ) and opposite-sex (OS) vs. single-born controls. SETTING AND SAMPLE POPULATION: Mesiodistal and labio-lingual crown dimensions of second deciduous molars and mesiodistal canine and first molar crown dimensions of 2159 children at 6-12 years of age were evaluated, originating from the US cross-sectional Collaborative Perinatal Study from the 1970s, including altogether MZ (n = 28), DZ same-sex (n = 33) and OS (n = 39) pairs...
August 2016: Orthodontics & Craniofacial Research
https://www.readbyqxmd.com/read/26898697/effect-of-organic-solvents-and-ultrasound-on-the-removal-of-orthodontic-brackets
#14
R M Santana, R N Rached, E M Souza, O Guariza-Filho, E S Camargo, M M Pithon, O M Tanaka
OBJECTIVE: To evaluate the effect of organic gel solvents (70% acetone and 90% ethanol) and ultrasound in the removal of metallic brackets. MATERIALS AND METHODS: Metallic brackets were bonded with light-cured orthodontic composite (Transbond XT) in 120 human bicuspids and divided into 6 groups for the enamel etch-and-rinse adhesive system (XT) and 6 groups to self-etching system (SEPT) according to pretreatment to removal test: control, 70% acetone, 90% ethanol, ultrasound, 70% acetone+ultrasound, and 90% ethanol+ultrasound...
August 2016: Orthodontics & Craniofacial Research
https://www.readbyqxmd.com/read/27405789/cell-morphologic-changes-and-pcna-expression-within-craniofacial-sutures-during-monkey-class-iii-treatment
#15
X Han, H Lu, S Li, Y Xu, N Zhao, Y Xu, W Zhao
OBJECTIVES: To evaluate and compare the cellular morphologic changes and proliferating cell nuclear antigen (PCNA) expression within craniofacial sutures in growing Rhesus monkeys treated with a Class III functional appliance. MATERIALS AND METHODS: Six Rhesus monkeys in the mixed dentition stage were divided into three groups: a 45-day experimental group, a 90-day experimental group, and a control group. Monkeys in the experimental groups were fitted with a Class III magnetic twin-block appliance...
July 13, 2016: Orthodontics & Craniofacial Research
https://www.readbyqxmd.com/read/26913700/a-radiological-study-on-intra-and-extra-cranial-calcifications-in-adults-with-x-linked-hypophosphatemia-and-associations-with-other-mineralizing-enthesopathies-and-childhood-medical-treatment
#16
H Gjørup, I Kjaer, S S Beck-Nielsen, M R Poulsen, D Haubek
OBJECTIVES: 1) The objective of this study was to explore radiological signs of intracranial and nuchal ligament calcifications in adult patients with X-linked hypophosphatemia (XLH) compared with controls and 2) to correlate signs of cranial calcifications in XLH patients with the presence of other extra-cranial enthesopathies, with the severity of skeletal XLH impact and with medical treatment during childhood. SETTING AND SAMPLE POPULATION: Lateral and postero-anterior cephalograms from 36 adult XLH patients and 49 adult controls and X-rays from spine, pelvis, knees and ankles from 31 of the 36 XLH patients...
May 2016: Orthodontics & Craniofacial Research
https://www.readbyqxmd.com/read/26898506/biomechanical-characteristics-of-self-ligating-brackets-in-a-vertically-displaced-canine-model-a-finite-element-analysis
#17
S-J Kim, Y-H Kwon, C-J Hwang
OBJECTIVES: The objective of this study was to compare the biomechanical characteristics between two types of self-ligating brackets and conventional metal brackets using finite element analysis of a vertically displaced canine model focusing on the desired force on the canine and undesirable forces on adjacent teeth. MATERIALS AND METHODS: Three-dimensional finite element models of the maxillary dentition with 1-mm, 2-mm, and 3-mm vertically displaced canines were constructed...
May 2016: Orthodontics & Craniofacial Research
https://www.readbyqxmd.com/read/26856663/the-impact-of-occlusal-plane-cant-along-with-gingival-display-on-smile-attractiveness
#18
B Kaya, R Uyar
OBJECTIVES: To evaluate the influence of occlusal plane cant in conjunction with maxillary gingival display on perception of smile attractiveness by orthodontists, dentists, and laypersons. SETTING AND SAMPLE POPULATION: Faculty of Dentistry at Baskent University. A total of 204 raters for smile attractiveness. MATERIALS AND METHODS: A frontal intra-oral photograph of aligned teeth was modified using image processing software. Six different occlusal lines representing 0° to 5° cants were obtained by tilting the photographs...
May 2016: Orthodontics & Craniofacial Research
https://www.readbyqxmd.com/read/26790630/effects-of-diabetes-on-tooth-movement-and-root-resorption-after-orthodontic-force-application-in-rats
#19
K Arita, H Hotokezaka, M Hashimoto, T Nakano-Tajima, T Kurohama, T Kondo, M A Darendeliler, N Yoshida
OBJECTIVE: To investigate the effects of diabetes on orthodontic tooth movement and orthodontically induced root resorption in rats. SETTING AND SAMPLE POPULATION: Twenty-three 10-week-old male Sprague-Dawley rats divided into control (n = 7), diabetes (n = 9), and diabetes + insulin (n = 7) groups. MATERIALS AND METHODS: Diabetes was induced by administering a single intraperitoneal injection of streptozotocin. Rats with a blood glucose level exceeding 250 mg/dl were assigned to the diabetes group...
May 2016: Orthodontics & Craniofacial Research
https://www.readbyqxmd.com/read/26790543/effect-of-gender-and-frankfort-mandibular-plane-angle-on-orthodontic-space-closure-a-randomized-controlled-trial
#20
A J Ireland, G Songra, M Clover, N E Atack, M Sherriff, J R Sandy
OBJECTIVES: To determine the effect of gender and Frankfort mandibular plane angle (FMPA) on extraction space closure. SETTING AND SAMPLE POPULATION: A single district general hospital. The sample population were 11- to 18-year-olds undergoing upper and lower fixed appliance therapy following the loss of a premolar in each quadrant. METHODS: A total of 100 patients undergoing upper and lower fixed appliance therapy following the loss of four premolars were randomized with stratification on two age ranges (11-14 years and 15-18 years) and three FMPAs (high, medium and low)...
May 2016: Orthodontics & Craniofacial Research
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