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Malocclusion

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https://www.readbyqxmd.com/read/28818647/malocclusion-class-ii-division-1-skeletal-and-dental-relationships-measured-by-cone-beam-computed-tomography
#1
Yiling Xu, Heesoo Oh, Manuel O Lagravère
OBJECTIVES: The purpose of this study was to locate traditionally-used landmarks in two-dimensional (2D) images and newly-suggested ones in three-dimensional (3D) images (cone-beam computer tomographies [CBCTs]) and determine possible relationships between them to categorize patients with Class II-1 malocclusion. METHODS: CBCTs from 30 patients diagnosed with Class II-1 malocclusion were obtained from the University of Alberta Graduate Orthodontic Program database...
August 14, 2017: International Orthodontics
https://www.readbyqxmd.com/read/28816300/-combination-of-periodontal-orthodontic-and-endodontic-therapy-in-upper-anterior-teeth-with-hopeless-prognosis-and-long-time-follow-up-a-case-report
#2
Y Li, L Xu, Y H Zhou, X Y Ouyang, T Cao
It is complicated to decide the treatment plan of hopeless anterior teeth in esthetic zone due to severe periodontitis, periodontal-endodontic combined lesion or teeth trauma. The optional treatment plan for this kind of teeth includes retention after periodontal treatment, extraction and implant treatment, extraction and prosthodontic treatment and so on. To make an appropriate treatment plan, patients' periodontal conditions, periodontal biotype, local anatomy, esthetic demand, economic condition and social psychological status should be comprehensively considered...
August 18, 2017: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/28816292/-precision-of-three-dimensional-printed-brackets
#3
D Zhang, L C Wang, Y H Zhou, X M Liu, J Li
OBJECTIVE: This study was based on digital orthodontic diagnosis work flow for indirect bonding transfer tray model design and three-dimensional (3D) printing, and the aim of this paper was to inspect the dimensional accuracyof 3D printed brackets, which is the foundation of the follow up work and hoped that will illuminate the clinical application of the digital orthodontics work flow. METHODS: The samples which consisted of 14 cases of patients with malocclusion from Department of Orthodontics Peking University were selected, including 8 cases with tooth extraction and 6 cases without tooth extraction...
August 18, 2017: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/28816195/pentraxin-3-levels-in-gingival-crevicular-fluid-during-canine-retraction-with-nickel-titanium-coil-spring-and-active-tieback
#4
Rakesh Thukral, Sukhpreet Mangat, Anvesha Ganguly, Sanket S Agarkar, Harleen Bali, Shekhar Grover
AIM: Orthodontic treatment is routinely carried out in patients with the purpose of correcting various forms of dental malocclusions. Retraction of the canines can be achieved either individually or along with incisor. Pentraxin-3 (PTX-3) is regarded as the true independent indicator of disease activity. Hence, we undertook the present study to assess and compare the level of PTX-3 in patients undergoing canine retraction with active tieback and Nickel-Titanium (NiTi) coil spring. MATERIALS AND METHODS: The present study included assessment of 25 patients that underwent canine retraction as a part of fixed orthodontic treatment...
August 1, 2017: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/28815257/-effect-of-functional-appliance-on-upper-airway-in-adolescent-patients-with-skeletal-class-ii-malocclusion
#5
Xuan Li, Hui-Ling Zhou, Xin-Tian Lou, Zheng Hu, Gang Shen
PURPOSE: To investigate the effect of functional appliance on upper airway in adolescent patients with skeletal Class II malocclusion based on cone-beam CT (CBCT). METHODS: Thirty adolescent patients (male:female=1:1) with skeletal Class II malocclusion and their 30 counterparts with skeletal Class I malocclusion were selected. Skeletal Class II malocclusion patients were treated with Activator for 12 months on average, meanwhile skeletal Class I malocclusion patients were treated with fixed appliance without extraction...
April 2017: Shanghai Kou Qiang Yi Xue, Shanghai Journal of Stomatology
https://www.readbyqxmd.com/read/28815251/-morphometric-analysis-of-maxillofacial-bone-in-48-patients-with-ectodermal-dysplasia
#6
Hao-Wei Wang, Feng Wang, Wei Huang, Wen-Jie Zhou, Yue-Ping Wang, Yi-Qun Wu
PURPOSE: The study was performed to analyze the maxillofacial morphology of 48 patients with ectodermal dysplasia (ED) and to provide some reference for implant treatment of ED patients. METHODS: The study collected the clinical data and lateral cephalometric radiographs of 48 patients with ED treated between June 2013 and October 2016. The patients were grouped as follows: group 1, 23 patients, at least with two kinds of ectodermal disorder, besides hypodontia; group 2, 25 patients, only with one kind of ectodermal disorder, besides hypodontia...
April 2017: Shanghai Kou Qiang Yi Xue, Shanghai Journal of Stomatology
https://www.readbyqxmd.com/read/28807370/descriptive-analysis-of-factors-associated-with-external-cervical-resorption
#7
Athina M Mavridou, Lars Bergmans, Dick Barendregt, Paul Lambrechts
INTRODUCTION: The aim of this study was to perform a descriptive analysis of the occurrence of external cervical resorption (ECR) in relation to the patients' characteristics (sex, age, and tooth type) and the potentially involved predisposing factors. METHODS: This study includes data on 284 patients (337 teeth with evidence of ECR) referred to the University Hospital Leuven (Leuven, Belgium) and Endo Rotterdam (Rotterdam, the Netherlands) for diagnosis and treatment from 2010 to 2015...
August 11, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28796181/associations-between-malocclusion-and-oral-health-related-quality-of-life-among-mongolian-adolescents
#8
Miyu Araki, Yuko Yasuda, Takuya Ogawa, Tsasan Tumurkhuu, Ganjargal Ganburged, Amarsaikhan Bazar, Takeo Fujiwara, Keiji Moriyama
Malocclusion may affect oral health-related quality of life (OHR-QoL), however, the previously detected associations were affected by confounding factors. We hypothesized that there is indeed an association between OHR-QoL and malocclusion and investigated in a population-based study of 420 Mongolian adolescents mean age: 12.6 (standard deviation (SD) = 1.09) years from two secondary schools, located in an urban and a suburban area. We randomly selected two classes from each school. The Index of Orthodontic Treatment Need (IOTN) was used to assess malocclusion...
August 10, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28791817/binder-syndrome-clinical-findings-and-surgical-treatment-of-18-patients-at-the-department-of-plastic-surgery-in-polanica-zdr%C3%A3-j
#9
Piotr H Drozdowski, Ireneusz Łątkowski, Mateusz G Zachara, Piotr Wójcicki
BACKGROUND: Binder syndrome (BS) is an uncommon congenital underdevelopment of the maxilla and nasal skeleton. Other clinical features include a hypoplastic or absent anterior nasal spine; a short, flat nose with short columella; an acute nasolabial angle; a convex upper lip and class III malocclusion. OBJECTIVES: The aim of the study was to outline the major characteristics of BS and to present a variety of surgical treatment methods. MATERIAL AND METHODS: The study included 18 patients treated in the authors' department from 1989 to 2013...
May 2017: Advances in Clinical and Experimental Medicine: Official Organ Wroclaw Medical University
https://www.readbyqxmd.com/read/28791281/orthodontic-treatment-completion-and-discontinuation-in-a-rural-sample-from-north-central-appalachia-in-the-usa
#10
Chris A Martin, Breana M Dieringer, Daniel W McNeil
BACKGROUND: Orthodontics has inherent demands, requiring regular appointments and active patient engagement, but relatively little is established in regard to rates of completion of treatment and possible factors affecting successful completion. These factors may be particularly important for cultural minority groups, such as those in rural Appalachia, given the environmental, social, and economic complexities affecting access to and utilization of treatment. DESIGN AND METHODS: A naturalistic study design was employed, using retrospective data from a rural outpatient general dental office in July 2012...
2017: Frontiers in Public Health
https://www.readbyqxmd.com/read/28791079/association-between-tooth-agenesis-and-skeletal-malocclusions
#11
Ana Maria Guerra Costa, Mariana Trevizan, Mírian Aiko Nakane Matsumoto, Raquel Assed Bezerra da Silva, Lea Assed Bezerra da Silva, Karla Carpio Horta, Fabio Lourenço Romano, Paulo Nelson-Filho, Erika Calvano Küchler
OBJECTIVES: The aim of this study was to evaluate the association between tooth agenesis and skeletal malocclusions in Brazilian non-syndromic orthodontic patients. MATERIAL AND METHODS: Pretreatment orthodontic records of 348 patients of both genders and with various skeletal malocclusions were examined. Tooth agenesis was evaluated in panoramic radiographs. Angular measurements were taken from lateral cephalometric radiographs to classify the patient's malocclusion as skeletal Class I, Class II and Class III...
April 2017: Journal of Oral & Maxillofacial Research
https://www.readbyqxmd.com/read/28764313/clinician-corner-a-simple-and-efficient-modified-goshgarian-arch-t-arch-appliance-for-correcting-single-tooth-scissor-bite
#12
Vikram Rajendra Pagar Patil, N G Toshniwal, Sayali Vikram Pagar Patil, Pawankumar Dnyandeo Tekale, Harshal Ashok Patil
Scissor bite is a rare form of malocclusion that is often accompanied by varying degrees of facial asymmetry. Correction and treatment of scissor bite in posterior teeth is a challenging job for an orthodontist. There are several treatment options for correction of scissor bite in posterior teeth but some have their own ill-effects on the dentition thus contributing further to the problem and some require patient compliance which compromises the outcome of the treatment. Therefore to overcome these drawbacks we have designed a new appliance to correct the molar scissor bite...
June 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28764295/photographic-assessment-of-cephalometric-measurements-in-skeletal-class-ii-cases-a-comparative-study
#13
Pooja Mehta, Roshan M Sagarkar, Silju Mathew
INTRODUCTION: Cephalometry has many limitations of which radiation exposure is most important. Hence, there is a need to resort to other safer methods which could give equal if not better results. AIM: The purpose of this study was to compare and correlate the craniofacial measurements obtained from cephalometric radiographs and analogous measurements from standardized facial profile photographs in skeletal class II cases. MATERIALS AND METHODS: A total of 30 lateral cephalograms and profile photographs of patients exhibiting skeletal class II malocclusion, in the age group of 19-25 years of age, were examined in this study using Dolphin software (version 11...
June 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28762342/assessment-of-malocclusion-severity-and-orthodontic-treatment-needs-in-12-15-year-old-school-children-of-namakkal-district-tamil-nadu-using-dental-aesthetic-index
#14
S Nagalakshmi, S James, C Rahila, K Balachandar, R Satish
OBJECTIVES: The present study was aimed to assess the severity of malocclusion and orthodontic treatment needs among 12-15-year-old schoolchildren in rural area of Namakkal district, Tamil Nadu, India, using the Dental Aesthetic Index (DAI). MATERIALS AND METHODS: A cross-sectional study was conducted among a sample of 1078 schoolchildren (12-15 years of age) who were selected by two-stage cluster sampling technique. Severity of malocclusion and orthodontic treatment needs were assessed according to the DAI using a specially designed survey pro forma with the aid of the WHO's Oral Health Survey: Basic Methods...
July 2017: Journal of the Indian Society of Pedodontics and Preventive Dentistry
https://www.readbyqxmd.com/read/28761982/occlusal-chewing-and-tasting-characteristics-associated-with-orofacial-dysfunctions-in-children-with-unilateral-cleft-lip-and-palate-a-case-control-study
#15
Ana Bheatriz Marangoni Montes, Thais Marchini de Oliveira, Maria Beatriz Duarte Gavião, Taís de Souza Barbosa
OBJECTIVE: The objective of this study is to assess the associations between orofacial dysfunctions with malocclusion, masticatory performance, and taste in children with and without unilateral cleft lip and palate (UCLP). MATERIAL AND METHODS: A patient-based, matched, case-control study was conducted involving 108 8- to 10-year-old children divided in UCLP and control groups. Orofacial dysfunctions were evaluated using the Nordic Orofacial Test-Screening (NOT-S)...
July 31, 2017: Clinical Oral Investigations
https://www.readbyqxmd.com/read/28761278/unilateral-condylar-hyperplasia-a-genetic-link-case-reports
#16
Monika Mahajan
Unilateral condylar hyperplasia is an uncommon condition with unknown etiology which causes overdevelopment of condyle leading to facial asymmetry, mandibular deviation, malocclusion, and articulation dysfunction. Two Indian families with unilateral condylar hyperplasia are presented where the similar abnormality was also detected in one of their parents. The condylar hyperplasia in these two families indicates that mandibular condylar hyperplasia could be genetic in origin.
January 2017: National Journal of Maxillofacial Surgery
https://www.readbyqxmd.com/read/28760288/surgery-first-approach-in-correcting-skeletal-class-iii-malocclusion-with-mandibular-asymmetry
#17
Hyeon-Shik Hwang, Min-Hee Oh, Hee-Kyun Oh, Heesoo Oh
This case report describes a surgical orthodontic case that used the recently introduced surgery-first approach to correct a severe skeletal Class III malocclusion. A 19-year-old woman presented with severe mandibular prognathism and facial asymmetry; she had been waiting for growth completion in order to pursue surgical correction. After prediction of the postsurgical tooth movement and surgical simulation, 2-jaw surgery that included maxillary advancement and differential mandibular setback was performed using a surgery-first approach...
August 2017: American Journal of Orthodontics and Dentofacial Orthopedics
https://www.readbyqxmd.com/read/28760287/surgery-first-orthognathic-approach-vs-traditional-orthognathic-approach-oral-health-related-quality-of-life-assessed-with-2-questionnaires
#18
Sandro Pelo, Giulio Gasparini, Umberto Garagiola, Massimo Cordaro, Francesco Di Nardo, Edoardo Staderini, Romeo Patini, Paolo de Angelis, Giuseppe D'Amato, Gianmarco Saponaro, Alessandro Moro
INTRODUCTION: The purposes of the study were to investigate and evaluate the differences detected by the patients between the traditional orthognathic approach and the surgery-first one in terms of level of satisfaction and quality of life. METHODS: A total of 30 patients who underwent orthognathic surgery for correction of malocclusions were selected and included in this study. Fifteen patients were treated with the conventional orthognathic surgery approach, and 15 patients with the surgery-first approach...
August 2017: American Journal of Orthodontics and Dentofacial Orthopedics
https://www.readbyqxmd.com/read/28760285/effects-of-unilateral-premolar-extraction-treatment-on-the-dental-arch-forms-of-class-ii-subdivision-malocclusions
#19
Ginu Dahiya, Ahmed I Masoud, Grace Viana, Ales Obrez, Budi Kusnoto, Carla A Evans
INTRODUCTION: A retrospective study evaluating posttreatment symmetry in dental arch form and midlines was carried out in Class II subdivision patients treated with unilateral and bilateral maxillary premolar extractions. METHODS: Using Geomagic (version 14; Geomagic, Research Triangle Park, NC) and MATLAB (version 8.4; MathWorks, Natick, Mass) software, best-fit curves expressed as quartic polynomials were generated for 13 Class II subdivisions treated with unilateral extractions and 20 treated with bilateral maxillary premolar extractions...
August 2017: American Journal of Orthodontics and Dentofacial Orthopedics
https://www.readbyqxmd.com/read/28760281/prediction-of-long-term-success-of-orthopedic-treatment-in-skeletal-class-iii-malocclusions
#20
Yoon Jeong Choi, Jeong Eun Chang, Chooryung J Chung, Ji Hyun Tahk, Kyung-Ho Kim
INTRODUCTION: We investigated the long-term success of orthopedic treatment in skeletal Class III malocclusions, established a model to predict its long-term success, and verified previously reported success rates and prediction models. METHODS: Fifty-nine patients who underwent successful facemask treatment and were followed until growth completion were evaluated. After completion of growth, the patients were divided into successful and unsuccessful groups according to overjet, overbite, and facial profile...
August 2017: American Journal of Orthodontics and Dentofacial Orthopedics
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