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Dental occlusion

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https://www.readbyqxmd.com/read/28077291/in-vitro-dentin-barrier-cytotoxicity-testing-of-some-dental-restorative-materials
#1
R D Jiang, H Lin, G Zheng, X M Zhang, Q Du, M Yang
OBJECTIVES: To investigate the cytotoxicity of four dental restorative materials in three-dimensional (3D) L929 cell cultures using a dentin barrier test. METHODS: The cytotoxicities of light-cured glass ionomer cement (Vitrebond), total-etching adhesive (GLUMA Bond5), and two self-etching adhesives (GLUMA Self Etch and Single Bond Universal) were evaluated. The permeabilities of human dentin disks with thicknesses of 300, 500, and 1000μm were standardized using a hydraulic device...
January 8, 2017: Journal of Dentistry
https://www.readbyqxmd.com/read/28074338/erratum-to-histochemical-changes-of-occlusal-surface-enamel-of-permanent-teeth-where-dental-caries-is-questionable-vs-sound-enamel-surfaces
#2
M Michalaki, C J Oulis, N Pandis, G Eliades
No abstract text is available yet for this article.
January 10, 2017: European Archives of Paediatric Dentistry: Official Journal of the European Academy of Paediatric Dentistry
https://www.readbyqxmd.com/read/28073627/angular-photogrammetric-analysis-and-evaluation-of-facial-esthetics-of-young-ivorians-with-normal-dental-occlusion
#3
Jean-Bertin Beugre, Moussa Diomande, Assi Raoul Assi, Mariam Kadi Koueita, Frédéric Vaysse
AIM: The aim of this study was to evaluate the angular photogrammetric characteristics of subjects according to the facial esthetics criteria applicable in Côte d'Ivoire. MATERIAL AND METHODS: This was a horizontal study, concerning of group of young people from Côte d'Ivoire whose attractiveness and photogrammetric characteristics were assessed. The data obtained were analyzed using SPSS 20.0 statistical software. The limit of statistical significance was P<0...
January 7, 2017: International Orthodontics
https://www.readbyqxmd.com/read/28072686/design-and-fabrication-of-complete-dentures-using-cad-cam-technology
#4
Weili Han, Yanfeng Li, Yue Zhang, Yuan Lv, Ying Zhang, Ping Hu, Huanyue Liu, Zheng Ma, Yi Shen
The aim of the study was to test the feasibility of using commercially available computer-aided design and computer-aided manufacturing (CAD/CAM) technology including 3Shape Dental System 2013 trial version, WIELAND V2.0.049 and WIELAND ZENOTEC T1 milling machine to design and fabricate complete dentures.The modeling process of full denture available in the trial version of 3Shape Dental System 2013 was used to design virtual complete dentures on the basis of 3-dimensional (3D) digital edentulous models generated from the physical models...
January 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28068276/repositioning-of-a-pathologically-migrated-tooth-using-autologous-platelet-rich-plasma-a-case-report-with-3-year-follow-up
#5
B V Karthikeyan, Divya Khanna, M Lv Prabhuji
An intricate balance between the periodontal tissues and the forces of occlusion, tongue, and lips helps to maintain a tooth in its physiologic position within the dental arch. Disturbances in the equilibrium can cause a tooth to migrate pathologically, often requiring multidisciplinary treatment approaches. The present case demonstrates, for the first time, the use of autologous platelet-rich plasma to aid in tooth repositioning after pathologic tooth migration. A 25-year-old woman presented with extrusion and labial migration of the maxillary left central incisor, a diastema of 3 mm, and grade II mobility...
January 2017: General Dentistry
https://www.readbyqxmd.com/read/28057701/a-prospective-10-year-follow-up-dental-cast-study-of-patients-with-obstructive-sleep-apnoea-snoring-who-use-a-mandibular-protruding-device
#6
Anette M C Fransson, Agata Kowalczyk, Göran Isacsson
OBJECTIVES: This 10-year prospective study aimed to measure and evaluate the teeth position and occlusion following 10-year nocturnal use of a mandibular protruding device (MPD) in subjects with obstructive sleep apnoea (OSA) or snoring. MATERIALS AND METHODS: Seventy-seven consecutive patients diagnosed with OSA/snoring were treated with an MPD. Fabrication of dental casts with jaw registration indexes in the intercuspal position was carried out at baseline and at follow-up, a construction bite was made, and an MPD was fitted...
January 5, 2017: European Journal of Orthodontics
https://www.readbyqxmd.com/read/28050989/nonsurgical-management-of-adult-skeletal-class-3-with-deep-bite-utilizing-mini-implants
#7
Ali G Alhalabi, Salah Mahaini, Ghalia Shebib, Khaldoun Darwich, Luai Mahaini
Malocclusions with anterior crossbite are a major esthetic and functional concern for patients. This case report presents a 27-year-old Syrian female who was diagnosed with a class 3 malocclusion, combined with anterior crossbite, deep bite, concave profile, and inadequate maxillary incisor exposure. There was a centric occlusion (CO)/centric relation (CR) discrepancy and the mandible could be manipulated to near edge-to-edge incisal relation. Correction was done by class 3 intermaxillary elastics on upper and lower mini-implants for the first 6 months, followed by preadjusted edgewise appliance...
January 1, 2017: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/28050980/prevalence-and-severity-of-temporomandibular-disorders-among-undergraduate-medical-students-in-association-with-khat-chewing
#8
Mohammed M Al Moaleem, Abdulmajeed S Okshah, Ahid A Al-Shahrani, Abdulkhaliq Ali F Alshadidi, Fawzia I Shaabi, Abdulaziz H Mobark, Khurshid A Mattoo
INTRODUCTION: The aim of this study was to assess the prevalence and severity of temporomandibular joint disorders (TMDs) among undergraduate medical students in the presence of khat chewing over a period of time. MATERIALS AND METHODS: Totally, 186 medical college students (age < 20 years) were randomly selected for the present study. The study subjects were divided into two groups according to age, under 20 and above 20 years. The study was based on Fonseca's anamnestic index and its questionnaire, which is composed of 10 questions and classifies the severity of TMDs...
January 1, 2017: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/28050525/modified-technique-for-making-auto-polymerized-polymethylmethacrylate-resin-custom-tray
#9
Ahila Singaravel Chidambaranathan, Ramesh Reddy, Suresh Rajendran, Muthu Kumar Balasubramaniam
Custom made tray for dental impression is designed to provide a uniform space for the impression material and thereby improve the accuracy of the resultant working cast. Auto-polymerized acrylic resins have been the most commonly used material for the fabrication of these trays. The custom tray produces more accurate and reliable results for inter-abutment distance at the occlusal and gingival level than stock trays. This article describes a modified technique for fabrication of auto-polymerized Polymethylmethacrylate (PMMA) resin trays...
November 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28050317/association-between-dental-implants-in-the-posterior-region-and-traumatic-occlusion-in-the-adjacent-premolars-a-long-term-follow-up-clinical-and-radiographic-analysis
#10
Jae-Hong Lee, Helen Hye-In Kweon, Seong-Ho Choi, Young-Taek Kim
PURPOSE: The aim of this retrospective study was to determine the association between dental implants in the posterior region and traumatic occlusion in the adjacent premolars, using data collected during from 2002 to 2015. METHODS: Traumatic occlusion in the adjacent premolars was assessed by examining clinical parameters (bleeding on probing, probing pocket depth, fremitus, and tooth mobility) and radiographic parameters (loss of supporting bone and widening of the periodontal ligament space) over a mean follow-up of 5 years...
December 2016: Journal of Periodontal & Implant Science
https://www.readbyqxmd.com/read/28045319/prevalence-of-cross-bite-in-a-sample-of-italian-preschoolers
#11
R Ferro, A Besostri, A Olivieri, V Quinzi, D Scibetta
AIM: To clinically evaluate the prevalence of cross-bite in a sample of 1960 children in our Local Health Unit n. 15 Alta Padovana (Veneto region, Northeast Italy). METHODS: Study design: A cross-sectional study was carried out in the area of Health District n. 15, Veneto region, including 7,364 children from 3 to 5 years, attending a total of 88 nursery schools A convenience sample of 27 nursery schools (30% of total) was randomly selected, for a total of 2,603 eligible children; of these, 1960 children formed our study base (76%)...
December 2016: European Journal of Paediatric Dentistry: Official Journal of European Academy of Paediatric Dentistry
https://www.readbyqxmd.com/read/28042446/correlation-between-dento-skeletal-characteristics-and-craniomandibular-disorders-in-growing-children-and-adolescent-orthodontic-patients-retrospective-case-control-study
#12
D DI Venere, R M Gaudio, A Laforgia, G Stefanachi, S Tafuri, F Pettini, F Silvestre, M Petruzzi, M Corsalini
PURPOSE: The aim of this retrospective case-control study was to identify, in a group of growing children and adolescents affected by malocclusion, specific dento-skeletal characteristics which could be correlated to the onset, in the above-mentioned subjects, of craniomandibular disorders (CMD). MATERIALS AND METHODS: Among the patients treated at the Paedodontics and Orthodontics department of Bari Dental School, we recruited a group of patients with malocclusion and symptoms of temporomandibular disorders, as an experimental group...
October 2016: Oral & Implantology
https://www.readbyqxmd.com/read/28042280/advancements-in-all-ceramics-for-dental-restorations-and-their-effect-on-the-wear-of-opposing-dentition
#13
REVIEW
Haroon Rashid, Zeeshan Sheikh, Syed Misbahuddin, Murtaza Raza Kazmi, Sameer Qureshi, Muhammad Zuhaib Uddin
Tooth wear is a process that is usually a result of tooth to tooth and/or tooth and restoration contact. The process of wear essentially becomes accelerated by the introduction of restorations inside the oral cavity, especially in case of opposing ceramic restorations. The newest materials have vastly contributed toward the interest in esthetic dental restorations and have been extensively studied in laboratories. However, despite the recent technological advancements, there has not been a valid in vivo method of evaluation involving clinical wear caused due to ceramics upon restored teeth and natural dentition...
October 2016: European Journal of Dentistry
https://www.readbyqxmd.com/read/28040681/asymmetric-molars-mesial-rotation-and-mesialization-in-unilateral-functional-posterior-crossbite-and-implications-for-interceptive-treatment-in-the-mixed-dentition
#14
Ingrid Tonni, Alessandra Iannazzi, Maria Grazia Piancino, Fulvia Costantinides, Domenico Dalessandri, Corrado Paganelli
INTRODUCTION: Symmetric transverse expansion is the main outcome of the early treatment in subjects with unilateral functional posterior crossbite. The aim of this study was to analyse mesial rotation and mesialization of upper first molars as sagittal parameters to be corrected in the treatment of these patients during the mixed dentition. METHODS: Digital dental cast measurements (rotation and mesialization) were performed in a sample of 48 subjects with unilateral posterior crossbite (UPXB; 19 males and 29 females, mean age 10...
December 31, 2016: European Journal of Orthodontics
https://www.readbyqxmd.com/read/28040606/steinert-syndrome-and-repercussions-in-dental-medicine
#15
REVIEW
Helena Baptista, Inês Lopes Cardoso
Steinert syndrome, also called myotonic dystrophy type 1, is a genetic disorder with autosomal dominant transmission characterized by myotonia and a multisystemic clinical picture that affects several tissues of the human body. The most common systemic phenotypes are: muscular, cardiac, respiratory, CNS, ocular, gynecological, digestive, orthopedical, as well as cognitive and psychological symptoms (cognitive decline). Muscles involved in voluntary movement are highly affected by myotonia especially distal muscles of upper limbs...
December 23, 2016: Archives of Oral Biology
https://www.readbyqxmd.com/read/28035661/evidence-of-toothpick-groove-formation-in-neandertal-anterior-and-posterior-teeth
#16
Almudena Estalrrich, José Antonio Alarcón, Antonio Rosas
OBJECTIVES: During the microscopic examination of the Neandertal dentitions from El Sidrón (Spain) and Hortus (France), we found unusual fine parallel microstriations on the mesial and distal sides of all tooth types, near the cervix. As its appearance was similar to toothpick grooves described in other Homo species, it could correspond to early stages on its formation. To test this hypothesis we developed an experimental replication of a groove using grass stalks. MATERIALS AND METHODS: Comparisons between 204 isolated Neandertal teeth and the two experimental dental specimens corroborate that the marks correspond to initial stages of toothpick groove formation, and we propose a five-grade recording scale that summarized the groove formation process...
December 30, 2016: American Journal of Physical Anthropology
https://www.readbyqxmd.com/read/28032199/does-dental-trauma-in-the-primary-dentition-increases-the-likelihood-of-trauma-in-the-permanent-dentition-a-longitudinal-study
#17
Marília Leão Goettems, Letícia Coutinho Brancher, Catiara Terra da Costa, Maria Laura Menezes Bonow, Ana Regina Romano
OBJECTIVES: The aim of this longitudinal study was to assess the likelihood of children suffering traumatic dental injuries in the permanent dentition subsequent to traumatic dental injuries in their primary dentition. MATERIALS AND METHODS: A longitudinal study was conducted in Pelotas, Brazil. Children were assessed in 2007, when they were aged 2-5 years, and in 2013, at which time, they were aged 8-11 years. Data collection included interviews with parents and clinical oral examination for dental trauma and occlusion...
December 28, 2016: Clinical Oral Investigations
https://www.readbyqxmd.com/read/28032053/impact-of-implant-diameter-and-length-on-stress-distribution-in-osseointegrated-implants-a-3d-fea-study
#18
R Eazhil, Siva Vadivel Swaminathan, Madhan Gunaseelan, G Vijay Kannan, Chandrapandian Alagesan
AIMS AND OBJECTIVES: Dimension of dental implant is an important parameter which has a considerable impact on the biomechanical load transfer characters and its prognosis. Excessive stress in the bone-implant interface may result in the failure of the implant. The aim of this study was to evaluate the impact of implant diameter and length on neighboring tissues around the implant. The results of the study will help in developing a scientific methodology to select appropriate implant diameter and length...
November 2016: Journal of International Society of Preventive & Community Dentistry
https://www.readbyqxmd.com/read/28028986/objectification-of-orthodontic-treatment-needs-does-the-classification-of-malocclusions-or-a-history-of-orthodontic-treatment-matter
#19
Anna Kozanecka, Michał Sarul, Beata Kawala, Joanna Antoszewska-Smith
BACKGROUND: Orthodontic classifications make it possible to give an accurate diagnosis but do not indicate an objective orthodontic treatment need. In order to evaluate the need for treatment, it is necessary to use such indicators as the IOTN. OBJECTIVES: The aim of the study was to find (i) relationships between individual diagnosis and objective recommendations for treatment and (ii) an answer to the question whether and which occlusal anomalies play an important role in the objectification of treatment needs...
November 2016: Advances in Clinical and Experimental Medicine: Official Organ Wroclaw Medical University
https://www.readbyqxmd.com/read/28000275/current-state-of-the-art-of-computer-guided-implant-surgery
#20
REVIEW
Jan D'haese, Johan Ackhurst, Daniel Wismeijer, Hugo De Bruyn, Ali Tahmaseb
The invention of computerized axial tomography (now known as computerized tomography) and developments of interactive software to allow virtual planning, with the aim to guide the surgery precisely toward a specific target, has dramatically improved general, as well as oral, surgery. Virtual dental implant planning allows for a prosthetically driven approach, resulting in the best possible design of the prosthesis, better esthetics, optimized occlusion and loading. This approach has also changed the surgical paradigm of using extensive flaps to obtain a proper view of the surgical area because flapless implant surgery, with or without immediate loading, has become more predictable...
February 2017: Periodontology 2000
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